Please click the following link or the above picture to redirect to our new website: Engineering A Future !
Be sure to subscribe to our new website & follow it please!
Please click the following link or the above picture to redirect to our new website: Engineering A Future !
Be sure to subscribe to our new website & follow it please!
Well, it appears that it has become time at last for Team UV to end its journey. Today marks the 345th day that TeamUV.org has been active and I can guarantee you that every one of us here at Team UV has throughly enjoyed and cherished the 29,676,840 seconds that this blog has been running (at the time of publishing this post). During this time we have had the incredible opportunity to share some of our own research and, far more importantly, help to inspire interest in the STEM fields amongst the general public with visitors from 115 countries for a total of nearly 8,300 views and well over 200 likes from 114 WordPress followers, our email followers, and many others.
This blog has far exceeded our expectations and for that we have all of our family, friends, supporters, and readers to thank. Without all of you, we would have never been able to accomplish what we have over the past year. I have been honored to lead this team and to have the chance to interact with all of you on a daily basis, all-the-while growing with my teammates and watching them progress through the challenges of the last 15+ months of our senior project. I believe that I can speak for all of us when I say that the experience of writing to all of you here at Team UV is not one that any of us will soon forget. These are the kinds of memories that stick with you.
The experience afforded to all of Team UV by sharing with you all over the past year will serve us well in the future as we push onwards and upwards in life and face new challenges, and I sincerely hope that our time here will serve all of you in the same way. From compressible flow regimes to programming Arduinos to biomedical diagnostic tests to 3D-printing makeup to insects with gear-like rear legs, we truly have covered a whole lot of incredibly diverse topics here at Team UV, but we have not even begun to scratch the surface of what the world of engineering has to offer. Part of the beauty of the world of engineering is that it truly is limitless. Boundaries to the engineering mindset do not exist and physical barriers to what engineers can do simply serve as challenges for scientists and engineers alike to accept. We hope that we have begun to shed some light on this reality and on the opportunities available within the STEM fields.
We set out hoping to reach just one person out there and help to inspire them to go on to pursue STEM-related careers or simply just to spend some time everyday thinking scientifically. I personally have heard from numerous people over the past year about how we have made a difference within their lives or the lives of their friends or families. I have also heard similar stories from my teammates, and that is the golden metric.
I am beyond proud of my team and what we have been able to accomplish and look forwards to continue to share with our readers about STEM over at our next project: EAF. For those that do not know, Engineering A Future (EAF) is a website that I originally intended to launch back in December 2012 with the goal of inspiring interest in the STEM fields amongst the general public…sound familiar? After preparing and stockpiling posts for a few short weeks, my Winter Break ended and the Winter 2012 quarter started in at Cal Poly Pomona (CPP) and my plans fell apart. I had become far too busy, did not have any help, and simply put had never done anything like EAF (or TeamUV.org) before. EAF was created with good intentions, but was not planned for properly by me, but I can assure you, that has all changed.
Flash forward three years and EngineeringAFuture.com will be relaunching on Monday (July 13th, 2015). This time the website is ready to go, as is the team. I have spent the past few months preparing EAF for its launch and am excited to cut the ribbon Monday morning. EAF will follow the same idea that TeamUV.org has, but will take it to a whole new level. EAF has been optimized with one goal in mind: to get as many people as humanly possible excited about STEM. Crazy, right? Well I believe that I have the perfect team to do it and that we are more than prepared to hit the ground running, help people to learn, learn (ourselves), and just have fun with it. Most of Team UV will be carrying over to EAF: Abraham, Ketton, and Andrew will all be bringing their massive brains, awesome outlooks, and passion for STEM-blogging and connecting with the community over to EAF. Unfortunately, Ben will not be continuing with us at EAF and so we wave a somber goodbye to a valued team member and friend. But fear not, while we may be losing a teammate, we are also introducing some awesome new features.
First is the style of posting. EAF will be posting three times a week (just like Team UV has been), but this time we will be posting on Monday, Wednesday, and Friday. Posts will go live at 0800 (purely so that our followers who check the site early will already have the content up to read, rather than having to wait around for two hours) and the social media (Facebook, Twitter, and Instagram) sharing of the posts will be sent out at 1000 hours (two hours later). Post categories have been almost completely revamped and the new categories will consist of:
On top of this, the new website is far more aesthetically pleasing, has many cool features and pages, and will hopefully mean a much more awesome experience for our readers and followers. Lastly, we have some very cool ideas in the works for some awesome new types of content that will launch later on down the road. The website is currently having its finishing touches put on with the About EAF page being finished up offline before transferring it to the site this weekend, a few member bio pages being finished up, and the graphical interface being tweaked a little bit more for Monday’s launch.
In closing, we want to thank our readers/supporters/followers for joining us along this journey and sincerely hope that all of you will continue to follow us over at EAF starting Monday! On Monday, a post redirecting our readers to EAF will be published.
Thank you for your time
Well looks like the time has come to say farewell. This has definitely been a fun ride here at TeamUV.org and I can definitely say I will not forget it. I honestly want to thank everyone who has supported us this entire trip whether it be reading our post, donating, commenting, or any kind of support you have given us. I just hope that we were able to shed some light on all of the interesting items that people just like us have created in the STEM field. We all have learned a lot from the beginning of this project (SHIELA-D) up til the end (DORY) and that experience is something that we will never forget.
You know, anyone can put up an article. But when you put up an article and see that people are coming to the site, reading it, and leaving comments, it is such a great feeling and once again I want to thank everyone who supported us no matter how small or large. As for the “For Now” part, I will be putting up articles for Engineering A Future for a little while so feel free to come, kick back, and read some more articles!
From the coolest guy in the group…..You Rock!
Abe here. Just wanted to thank everyone who donated to our project, read our articles, or simply supported us along the way. We accomplished a lot with this project, visited a lot of places, and even represented our department at the Engineering Project Showcase. More importantly, I am more than pleased with what we learned by tackling this project. I think everyone on the team got a glimpse of what being on a real engineering team was all about and we can now take this experience to industry or wherever we go. I hope that what we have done here inspires you to do something you’re passionate about and give it your all. In closing, I will continue to write for Engineering a Future for the next few months so follow us there!
Goodbye nerd friends. I’ll see you later this month on EAF!
It has been quite an adventure writing the posts for this site, I know I have learned a lot, and hopefully you have too. While this blog catered mostly to people interested in the science technology engineering and math fields I did what I could to make it accessible to all. One of the best ways to learn something new is to try and explain it, so thank you for letting me learn by explaining to you.
Hopefully most of you will continue on the Engineering A Future. I will not, my blog writing journey has reached its end here. It was fun while it lasted stay curious and stay creative, always stretch your minds to the limits!
So the day has finally come; my last Team UV blog post. It’s been a true pleasure writing about STEM topics for all of you to enjoy. Blogging for this site has given me a venue to express my engineering interests, as well as way to see what my fellow Team UV members are in to. As Mechanical Engineering graduates who completed the same basic curriculum at Cal Poly Pomona, it’s fascinating that we are all interested in different fields. I can’t wait to see where the five of us will go in our careers.
I’m excited for the next chapter with Engineering A Future (launches Monday July 13th) and the chance to share my interests more deeply with you all. As of now, I will be posting once a month on EAF about my favorite topics: robotics, the energy industry, and electronics!
See you all on EAF!
As many of you are aware, we are in the transitioning phase of this website as we close out TeamUV.org and transition to EngineeringAFuture.com over the next two months, so this will be Andrew’s last Open Mind post here at Team UV, but not to fear, there are still two months of posts left here and the same types of articles will be carried over onto EAF (Engineering A Future), so without further ado, please enjoy the following:
Last week, I had one of the best educational experiences of my life: a whole day of teaching 6th graders about STEM (Science, Technology, Engineering, and Math)! My lovely girlfriend is a 6th grade, Math and Science teacher and was constantly asked by her students as to when I would visit her class. With the build of DORY in full swing and wrapping up my undergraduate degree, I just couldn’t make time for a visit during the school year. In the last few months, my interest in teaching has grown, especially teaching about science, technology, and engineering. I knew I would take the opportunity to speak to her kiddos the first chance I could get.
My girlfriend and I made plans for me to visit the second to last day of their school year. Her kids and I couldn’t be more excited. I made a presentation about STEM and how it applies to our everyday lives. I appealed to their interests by highlighting: famous people and how they use technology, popular electronics and how they wouldn’t be around without STEM, and popular social apps and how they came to existence using STEM. I also showed them famous celebrity engineers such as Ashton Kutcher, Rowan Atkinson, and Michael Gambon. I then continued to show them projects I worked on in my undergrad such as an obstacle avoiding cart and DORY, as well as a live demonstration of a self-balancing wing. They had so many questions with some that showed real engineering intuition. Seeing the excitement in their eyes and the “light bulbs” turn on was a fulfilling moment for me.
At the end of my presentation, I gave them a little background on electrical motors and brought materials to help them make their first simple motor. With a couple of magnets, a battery, copper wire, and a bit of patience they all made a homopolar motor. One team even had their motor spin for 14 minutes before the wire fell off. We even had time to make paper bridges which turned into a very competitive activity!
Although the day was filled with laughter and excitement, it didn’t come easy! Often times we (meaning my girlfriend!) would have to correct the kids when they would get too roudy or speak out of turn. By the end of the day, we were both so exhausted. I have a new appreciation for middle school teachers and am glad I had the chance to try out the position. It is one difficult career! Teaching 11 year olds may not be in my future, but teaching STEM classes could definitely be!
Until next time…
A big thank you to Mr. Russ Neff and the rest of the team over at Bandel Manufacturing for donating the materials and lending the tools necessary for us to shape the body of our underwater vehicle! A few pictures of the process of building the body to our design are included below:
Once again, we thank Bandel Manufacturing as we could not have created the body of our vehicle without you. For more on Bandel Manufacturing, please click this link to their website or visit our Sponsors & Donations page to find the link there.
Team UV was selected to represent the Mechanical Engineering department here at Cal Poly Pomona during Friday’s Engineering Project Showcase, where we presented a very brief (12 min. presentation) introductory look at some of our research to the other presenters, faculty from all of the engineering departments, and some industry representatives. We took 3rd place overall and walked away with a certificate and significant cash prize, bringing this chapter of Team UV to rest.
This was our last planned presentation, although we are considering some journal submissions, possible conferences, competitions, and the like further down the road; however, for the time being, we will be closing the book on Team UV. Over the next 2 months, we will be saying our goodbyes on TeamUV.org through some send-off posting. Not to worry, however, because the same style of posting will be carried over onto my website (EngineeringAFuture.com) with many of the same authors upon closure of TeamUV.org. I created EngineeringAFuture.com back in December 2012, but never got it off the ground…flash forward to 2 years later and TeamUV.org launched in July 2014 with the same goal of inspiring interest in the STEM (Science, Technology, Engineering, and Mathematics) fields, but with the added goal of sharing some of the progress of our project. Engineering A Future is an active domain, so you can check it out now if you would like, but everything you see on there currently will be changing as the website is retrofitted over the next 2 months in preparation for its relaunch.
In closing, while I believe that I speak for all of Team UV when I say that we will greatly miss writing for our readers here at TeamUV.org, this should not be looked at as the end, but rather simply a new chapter in our book as we transition to EAF (Engineering A Future). In the next few weeks, posts will occur as follows:
Full Week of Posts with Regular Scheduling (Well Read Tu 1000, Presentation Th 1000, Open Mind Su 1300)
Brian: June 2, 4, 7
Andrew: June 9, 11, 14
Ben: June 16, 18, 21
Abraham: June 23, 25, 28
Ketton: June 30; July 2, 5
Goodbye Posts (M, Tu, W, Th, F 1000)
Andrew: July 6
Ben: July 7
Abraham: July 8
Ketton: July 9
Brian: July 10
This means that July 10, 2015 1000 hours will mark the last post for TeamUV.org. Posting on EngineeringAFuture.com will begin the following week; I will announce the post scheduling for EAF on July 10 as a few things are still yet to be set, but it will be either 2 or 3 posts a week.
Thank you to all of our readers for all of your time and support and I look forward to continuing to write for you all over at EAF, but for now, please continue reading here at Team UV as our regular scheduling continues with my full week of posts starting on Tuesday.
Thank you for your time
Today Team UV will be skipping our usual Presentation post as we are out of state in Washington for the 2015 National Conference on Undergraduate Research, where we will be presenting some of our research that we have conducted thus far in the work on our project. We have traveled some 1,500 miles from California to Nevada to Idaho to Oregon to finally Washington while transporting our propulsion system demonstrator SHEILA-D (Submerged Hydrodynamically propelled Explorer, Implementation: Los Angeles – Demonstrator) and our vehicle DORY (Dynamic Observational Reconnaissance through biomimicrY), and are excited to be presenting our research later today.
More info to come later in the week. Until next time!
First off, we want to apologize for missing our Thursday post, it has been a very hectic week for Team UV with almost all of the members going without sleep for 30 hours and above at some point or another; for example, I personally received about 8 hours of sleep total between Sunday morning and Thursday evening and at one point had to go about 30 hours without eating in order to get everything accomplished, but alas!, it was for a good cause and now Team UV can finally relax! (well, relax relative to other people, haha)
This past week and a half Team UV has had a week straight of building, testing, and programming for our vehicle, final exams, grad school visits, reports and projects due, graduation stuff, and of course completing our senior project! On Thursday, we delivered our final project presentation to the Mechanical Engineering board responsible for assigning our grades (we all received A’s), turned in our 140 page project report, and did a live demonstration of our vehicle Dory (Dynamic Observational Reconnaissance through biomimcrY). Dory (our Phase III vehicle) can be seen in the picture above, next to our Phase I propulsion system demonstrator Sheila-D (Submerged Hydrodynamically propelled Explorer, Implementation: Los Angeles – Deomonstrator)! (Read more about Sheila on our About page)
So this marks the “official” end of our senior project; however, this does not mark the end of the project altogether. We still have a lot of work to do regarding improving the build, adding more features, completing more advanced testing, and overall producing a more polished solution. Additionally, we will be attending the National Conference on Undergraduate Research (NCUR) at Eastern Washington University from April 16th-18th, the California State University system-wide Student Research Conference (CSU SRC) from May 1st-2nd (we are attending this because we won our session and award money at the Cal Poly Pomona Student Research Conference on March 6th), the Cal Poly Pomona (CPP) Senior Project Symposium at the end of May, and hopefully the CPP Symposium Showcase at that same time (this highlights the top project team from each engineering department).
Additionally, we will be looking to submit to some journals, quite possibly looking into at least one patent. Lastly, this website will continue publishing posts until the project ends, at which point these types of posts will continue on EngineeringAFuture.com. Anyways, thank you all for your continued support and I would like to remind everyone that we still have our fundraising campaign (GoFundMe.com/TeamUV), which will continue as long as the project is running as we still have quite a few costs ahead of us!
Please check back in tomorrow for a Well Read post from Ben!
Team UV reached the first dry powered milestone (rotating propulsor) tonight! Albeit backwards…haha
Check out the video above and we’ll be sure to post more videos as we make more progress in our testing!
This robotic glove, the “Teacher”, is designed to help you improve your drawing skills. It attaches to your hand and the machine coaches you to draw by forcing your hand to perform certain motions. The idea is that your hand will eventually develop the proper muscle memory and be able to draw free-handed.
Saurabh Datta, an engineering student from the Institute of Interaction Design Copenhagen, developed the glove for his graduation thesis. Initially, the equipment was designed to teach him how to play the piano. In it’s latest version however, the Teacher can help anyone without a natural born talent to draw through simple repetition. The robot forces your hand to repeatedly execute a series of basic drawing movements. The repetition of these movements end up being transferred to the muscle memory of your fingers, causing you to be able to repeat the movements naturally without the use of the glove. The idea of the glove is basically to “program” you so your lines become aesthetically better. The glove has no ability to interfere in the creative process so it’s still up to you whether or not to be able to put on paper something visually attractive.
I am not an artistic person but once I obtain one of these gloves who knows. You might see one of my drawings in a museum near you! 🙂
Team UV is not the only one who has an interest in underwater technology! The latest in underwater robotics has taken inspiration from the undulating motion of the cuttlefish, rather than conventional methods such as propellers and solid fins. Previous attempts at fish like robotics have produced decent mimics of fish motion, however, they have always been rather limited in terms of agility and precision. Researchers form Swiss Federal Institute of Technology (ETH) in Zurich are set to change this thought with their four finned cuttlefish inspired Sepios robot. Sepios carries a 20,000mAh battery, which is good for as much as 90 minutes of dive time with a top speed of 1.8 km per hour (~1.12 mph or 1.64 ft/s). The current version is only rated for use at depths up to 10 meters (~32.8 ft), which is plenty to explore coastal waters and film wildlife.
Sepios can see effortlessly through a forest of seagrass, even in stormy conditions. Each fin can be controlled separately allowing the robot to move in any direction with ease. The team is now working on improving the coordination of its many sensors, for example pressure and humidity detectors and an on-board camera, laser and inertial measurement unit that help it avoid collisions.
Maybe Sepios will be swimming with Team UV’s underwater vehicle in the future! 🙂
Arduino boards are very helpful and powerful tools to help connect the electronics world to the real world around us. Like I said in Part 1 of my Learning Arduino Series, they can read inputs and control outputs very quickly; faster than any human can do manually. With that said, an Arduino board, such as my handy UNO R3, can only do so much. After an “Arduinonian” has experimented with all the things in their beginners pack, they often want to venture out to more complex and demanding projects. Want to drive more than one motor? Want to drive two DC motors and 2-3 Servos? Want to connect your board to the internet or save data and images to an SD card? There’s a shield for that!
Shields are commonly made for microprocessors like the Arduino UNO R3 to inject it with extra functionality. They are designed to piggyback directly on top of your logic board, through the use of stacking headers, which can allow the use of pins not already in use by the shield itself. Some shields allow programmers to pull more amperage for driving bigger, hungrier motors while others add GPS or Bluetooth capabilities. There are WAY too many shields out there to describe in one post, so i will share with you some of the ones I have used and some that I plan to use in the near future.
1) Arduino Motor Shield R3
The important thing about shields is that you want to make sure they are stackable with your specific board. For example this motor shield is called R3 because it fits perfectly on top of the UNO R3 but wouldn’t fit on the earlier R2. I bought this motor shield to do a few different projects that required me to use much stronger motors than the UNO R3 can handle. With the shield installed, a programmer can pull up to 4A, 2A per channel, safely with operating voltages up to 12V. It’s designed to drive relays, solenoids, DC motors, and stepper motors. In fact, it can drive two DC motors independently or one stepper motor with speed and direction control for either case. The shield can be powered by the same power supplied to the logic board (i.e UNO R3) or it can be powered by an external source through the VIN and GND terminals on the shield.
I found this shield to be very easy to use especially with everything already soldered on, even the headers. Working with the supplied library was also a breeze and allowed me to get my projects up and running in no time. I would totally recommend this shield for a beginner or even a professional looking to power up to 12V motors for its low price and easy implementation.
Click here for more info on this shield.
2) PowerBoost 500 Shield
This shield is the latest shield I have worked with. I soldered up the headers and the on and off switch just yesterday! This shield by Adafruit is potentially going to be used in our Senior Project design granted it performs well in testing. The idea behind this shield is to take a single cell battery outputting 3.7V and boost the potential to 5V. This allows a single cell battery to power up your 5V Arduino project on the go! It also has a recharging circuit built in so that the LiPo battery can be charged via microUSB. All the indicators for ON, Charging, Done, and LOW are there to let you know that state of the battery. Another major plus is that depending on the size of the battery, it can fit nicely within the width and height of the stacking headers! So far testing has turned out great with 5V being supplied to my project with the use of only a single cell 3.7V 2,000mAh battery. This will save us plenty of space and take care of charging in one small stack-able package. Like most shields out there this one needed to be soldered before use and for that reason, I would recommend this shield to anyone as long as they can solder or know someone who can.
Click here for more information about this Adafruit shield.
3) Shields I want to use in the near future
Long story short…any of these!
The link above lists some cool shields to get you all started but don’t be afraid to look around for new and unique shields. Sparkfun, Adafruit, and other suppliers are constantly coming out with new stuff. To be honest, the possibilities of what you can do with an Arduino are endless especially when shields can be stacked on each other! Look out for my next Learning Arduino post about breakout boards and things I have needed to collect since starting this hobby!
As always thank you to everyone who has supported us and continue to share our posts and GoFundMe site. We really appreciate it!
Until next time…
First and foremost I apologize for the overall lateness of the content of this post, as I originally intended to publish this post in my previous round of posts, but due to time constraints decided to publish a post on a snake-proof full-body suit (equally interesting!) and invest a little more time into making this post a little easier to understand before publishing…hopefully it worked out, haha. So as I noted a while back (while discussing the future of undersea warfare), with growing challenges in the undersea and technological domains, innovation is becoming more and more important within the realm of defense engineering (as well as all other fields of engineering). One promising direction engineers are looking to in all fields of engineering is towards the application of advanced biomimetics (a.k.a. biomimicry) in their designs. Why might engineers and scientists want to study how we can mimic fish, or other animals or nature in general? Because nature truly is the ultimate engineer. Animals have been optimized to perform the tasks that they need to and to do so efficiently and thus have been nearly perfected for their environments and their lifestyles.
Considering the facts just presented, it becomes a little more evident why undersea warfare (as well as other undersea activities and applications) may benefit from the implementation of biomimcry. Take the Shortfin Mako Shark for example; this is the fastest species of shark in the world and it utilizes its large caudal fin (as will be defined later), slim, streamlined, torpedo-like body, and its stronger, faster-acting muscles (as enabled by its endothermic abilities, through which it generates additional heat through its unique metabolism, keeping the muscles warm and agile, thus defining the Mako as a “warm-bodied shark”) to reach cruise speeds of 25 mph and burst speeds up to 50 mph and leap 30 ft high! Another example of the awe-inspiring abilities of marine creatures and how scientists and engineers have attempted to mimic them is that of the color- and texture-changing abilities of the octopus, as Andrew talked about a while back.
To better understand more specifically how engineers can utilize biomimicry in order to advance undersea vehicle technology, we will now discuss how exactly fish swim. Fish generate forward motion, or swim, through what is termed locomotion. Locomotion is simply a fancy word for describing movement from one location to another; animal locomotion may take many forms and can be seen in all types of environments, whether terrestial (on land), aerial (through the air), or aquatic (through the water). There is a myriad of other qualifiers that can be used to further divide up the different kinds of locomotion (if you are interested, you can learn more about animal locomotion at this link), but we are going to solely focus on fish locomotion, that is, how fish get from one place to another.
Fish locomotion can be divided up into two main modes of motion: Body-Caudal Fin (BCF) and Median-Paired Fin (MPF). The BCF mode accounts for about 85% of fish families’ main mode of propulsion, whereas MPF makes up for about 15%. Now before diving into the swimming mechanisms associated with these two modes, we will make one more distinction: undulatory motion (also referred to as undulation) vs. oscillatory motion (also referred to as oscillation). Undulation is by far the most common type of motion (both within the BCF & MPF modes) and can be thought of as a lateral wavelike movement; picture a fish seemingly weaving its way through the water or a rope with waves travelling down its length…this is in essence what undulation manifests itself as: undulation in fish movement appears as lateral waves travelling down the length of the fish’s body. In short, undulation is lateral wave motion along the length of the body, relative to the body, as if the body was stationary but experiencing waves along its length. In contrast, oscillation focuses more on the body being essentially rigid and moving the tail side to side…picture your dog wagging its tail, or a pendulum oscillating about the line connecting the pivot point to the base. Now that we’ve got that covered, we can move on to quickly listing the common types of fish motion and listing a few examples!
Body-Caudal Fin (BCF)
This type of movement depends on the fish effectively wiggling its body in order to move its caudal fin sided to side, thus producing thrust which has components in the forward, backward, and transverse directions. The largest component of this thrust is that in the rearward direction, thus the movement of the caudal fin propels the fish through the water.
1. Anguilliform: With this kind of motion the undulatory waves are passed throughout the entire length of the body (except perhaps the head); because the entire body is extremely flexible, both forward and backward motion are possible. The most typical application in which you would see this kind of motion would be in eel locomotion.
2. Subcarangiform: This motion is similar to anguilliform, but the forward 1/3-1/2 of the fish does not move, while the rest of the body still generates transverse undulations. It is now significantly harder for the fish to swim backwards as it is not longer symmetric front to back and the forward portion of the fish is much more stiff than the rear. Common examples of fish with this kind of motion would be most trout and salmon.
3. Carangiform: Also similar to anguilliform, but only the last 1/3 of the body acts to produce thrust and the caudal fin itself is usually more stiff to produce greater thrust with the reduced active length of the body. Fish that swim like this are usually fairly narrow transversely, likely to increase the surface area used for thrust generation by increasing the height to width ratio; these fish also tend to be stiffer overall and faster moving.
4. Thunniform: In this group, all undulation is restricted to the caudal fin/tail and the region connecting the main body to the caudal fin (called the peduncle); these types of fish usually have very large, stiff caudal fins, have been optimized for high speeds and long distance travel, and are capable of generating hydrodynamic lift in order to compensate for the fact that many of them are not neutrally buoyant and thus need to move (and in doing so, generate lift) in order to keep from sinking. Examples are most species of tuna and sharks.
1. Ostraciiform: These types utilize slow pendulum-like movement of large caudal fins and are similar to Thunniform, but operate much more slowly. As a result, this type of swimming is usually either simply an auxiliary, low-energy style of swimming used by some MPF fish or, if used by fish as their main style of propulsion, those fish would generally have internal countermeasures such as poisons since they are incapable of fleeing predators.
Median-Paired Fin (MPF)
This type of movement depends on synchronization of various combinations of usage of the pectoral, dorsal, pelvic, and/or anal fins.
1. Rajiform: Characterized by vertical undulations along large pectoral fins…think sting rays and manta rays for example.
2. Diodontiform: Characterized by undulations that travel along large pectoral fins…like a porcupine fish!
3. Amiiform: Utilize long undulatory waves along large dorsal fins, such as a Seahorse.
4. Gymnotiform: Uses undulations of a long anal fin; much like the Amiiform, but using the anal fin on the underside of the fish rather than the dorsal fin on the top side of the fish. An example is the American Knifefish.
5. Balistiform: Anal and dorsal fins undulate; while rare, this can be seen in the Triggerfish.
1. Tetradontiform: Dorsal and anal fins oscillate either in phase (together) or opposite of each other; an example would be the Sunfish.
2. Labriform: Pectoral fins osciallate in a way in which they produce both lift and drag, which can be resolved into components, one of which would be rewards, thus producing thrust. In essence, the fish flaps and rows its pectoral fins, producing thrust. An example of a fish using this kind of motion would be the California Sheephead.
So there you have it, an organized view of the many sorts of propulsion mechanics associated with fish, each having its own advantages and disadvantages. By studying these kinds of characteristics of fish, scientists and engineers can come up with innovative solutions by looking to the sea for the answers for the one constant truth for scientists and engineers alike is that we never stop learning and so when you can’t find a sufficient answer in your textbooks and theories, you need to be able to conduct experiments and analyze the world around you in order to come up with new ideas.
This is exactly what engineers within the defense industry are doing currently as they conduct research and begin designs of new cutting-edge, innovative undersea vehicles that utilize biomimicry to provide for increased performance, better power efficiency, and increased stealth through the minimization of flow signature. While we here at Team UV are not utilizing biomimicry in the design of our propulsor (for which we use something else all together), we absolutely have biomimetic influence within our design and as can be seen in the picture at the top of this article, have looked to adapt a streamlined shape and fin-like control surfaces in addition to a number of other biomimetic schemes (i.e. stability, maneuvering, buoyancy control, drag reduction, etc.) to produce a truly innovative solution that is currently in the manufacturing/assembly stage. And so we again ask for your increased support through our fundraising campaign at GoFundMe.com/TeamUV as we near the end of our project in the coming months.
As promised, in another week or two, we will release some pictures of the current vehicle design/model.
A few days ago, Team UV was selected to present some of our research regarding our underwater vehicle and its propulsion system at the 2015 National Conference on Undergraduate Research, which will take place at the Eastern Washington University from April 16th-18th! Thank you to our readers for your support and for following our blog; we will not know what day, timeslot, or room we will be presenting on/during/in until early March.
Also, we want to thank those of you who have contributed to our fundraising campaign and mention that we have now raised $1,630 thanks to your generous donations! Thank you for your support and please continue to help spread the word as we continue in the purchasing and manufacturing stages!
We also want to note that no donation is too small and not a single penny donated will go to waste, it will all be used to increase the quality of our vehicle, to add capabilities (through additions to the sensor suite or additional drag-reducing technologies, etc.), and to enable us to conduct better testing (i.e. the construction of a flow tank for actual flow visualization). As an example of this, we are excited to inform you that through some of your donations we have been able to get our hands on a superhydrophobic substance (from Hydrobead) that will help us to decrease drag on the exterior of our vehicle significantly through the repulsion of the surrounding water. As follows from the above statements, any money that we raise above the $5,000 will be put directly into the project in one of many ways, including (but not limited to) those listed above.
In addition to this, at this point, it is unclear as to where the funding to attend our research conference will come from (whether out of pocket or at least partially funded through our school’s research office), so all donations will help us significantly!
Lastly, I want to remind our readers that we will be trying to post funding progress updates as often as possible and that you can find a full-sized PDF of our pull-tag poster on our Sponsors & Donations page if you would like to print one out and post it to help get the word out. If you would like to help out in other ways, it would mean a lot to us if you would tell your friends/family/coworkers/etc. about our fundraising campaign (and possibly ask them to share it as well), share it on Facebook, or perhaps even just spread the word about TeamUV.org in general, as our biggest goal with regards to this website is to inspire interest in the fields of Science, Technology, Engineering, and Mathematics (STEM).
Any help is greatly appreciated and please come back Sunday for Andrew’s Open Mind post!
The idea of 3D printing is spreading around into all kinds of different disciplines, from cooking to make up. In engineering the idea of 3D printing has been around for a while now. But more recently it has become accessible to the average consumer. Some organizations made 3D printer designs open source, meaning that they published their designs on the internet free of charge. This allowed anyone with some know how to make their own. Once the average hobbyist could invest in the technology it began to get more interest and eventually has become the thing that it is today. As an additive manufacturing method for prototypes, or single production runs, where strength isn’t a huge concern 3D printers open up a huge world of design to the interested population.
Team UV would like to update our readers and supporters with regards to the progress you all have helped us to make through our fundraising campaign. As of today (January 7th, 1525 hours), we have raised $1,620 of our goal thanks to your donations!
As a way of saying thank you and hoping to share a little more about our project with you, we will be publishing some images of our project over the next few weeks. The reason we have refrained from posting any pictures from our project in the past was due to the proprietary nature of many of the systems on our vehicle (and the vehicle as a whole), but we are realizing more and more how important it is that we share a little more of what we are doing with our supporters. So without further ado, below we have posted 2 pictures of SHEILA-D (Submerged Hydrodynamically-propelled Explorer, Implementation: Los Angeles – Demonstrator).
SHEILA-D was our propulsion system demonstrator that we designed, built, and tested over a span of 36 days and 850 (by conservative estimates) man hours during Phase I of our project (which took place during our Machine Design lecture/lab combo in Spring 2014). The goal for SHEILA, was to demonstrate the ability to provide thrust with our innovative underwater propulsion system, and in this respect we succeeded. However, we were aware of many shortcomings from this initial design (i.e. poor material choice as influenced by cost/time limitations, poor tolerances, etc.) and thus revamped our efforts with regards to the propulsion system during Phase II [the senior project portion/development of the entire vehicle from late Spring 2014-mid Spring 2015 (project symposium)]. For more information on the history and plans for this project, please check out our About page.
We are currently in the purchasing portion of Phase II (to be followed by manufacturing/assembly, programming, testing, final analyses, and report/presentation preparation) and thus could use funding now more than ever. We would like to thank all of you for supporting our efforts and ask that you please continue to share our website and our fundraising campaign (GoFundMe.com/TeamUV) with as many people as possible. No donation is too small and for those who know the team personally, offline donations are welcomed as well.
This post will be reposted on our fundraising page, and 1 week from now we will post some pictures of the original Phase II full-vehicle concept, with the actual Phase II vehicle computer model pictures coming 1-2 weeks after that, so please be sure to check back often and remember, tomorrow Ben will be posting a Presentation post at 1000 hours!
While the vast majority of the attention with regards to unmanned vehicles is generally seized by unmanned aerial vehicles (or UAVs, which have almost become a household acronym in this day and age), the aerial environment is by no means the only one within which militaries benefit through the use of unmanned vehicles. In fact the same reasons that UAVs prove so valuable in the aerial environment (information gathering, reconnaissance, surveillance, unmanned combat, logistics support, etc.) also exist for UGVs (Unmanned Ground Vehicles) and UUVs (Unmanned Underwater/Undersea Vehicles…by the way do you realize that if you shorten UUV to UV, you get half of Team UV’s name? Rest assured this is no coincidence, our senior project aims to provide a stealthy, highly maneuverable ISR UUV, but we shorten it to UV – underwater vehicle – because with our compact size it would be impossible to man the vehicle, although UV is also an acronym for Unmanned Vehicle…plus “Team UV” is catchier than “Team UUV”…).
In the design of our UV, we are essentially optimizing the vehicle for ISR (Information/Intelligence, Surveillance, and Reconnaissance) type missions; we do this by providing for higher speeds, smoother maneuvering, increased stealth (on the fronts of thermal, magnetic, and flow signature, cavitation, noise, and overall inconspicuousness), and requiring little to no human interaction. All of these mission objectives that we have for our UV increase the vehicle’s performance and stealth, making it a much more efficient solution to be used by our troops to conduct naval ISR from a distance and thus, help to save lives. While our primary application is ISR, which directly serves the military, it is important to note that UUVs are not only used by the military, but are also used by harbor security, underwater inspection contractors, marine biologists, and even recreational users in some cases. The range of applications for UUVs has no end in sight, as can be seen by the small sampling of applications for UUVs listed below.
As more conflicts arise and scientists and engineers continue to push the boundaries of technology, the role of UUVs in undersea warfare is only set to increase; this is especially true when budgetary considerations are taken into account in that the cost of a small UUV is almost negligible in comparison to a full-scale submarine. This is not to say that a UUV can replace a full-scale submarine, nor that they even share the same roles; however, as submarine fleets diminish due to the astronomical costs associated with initial acquisition and subsequent maintenance, the number of UUVs used by the military will only continue to rise. When you pair this with the fact that, as the current UUV technology becomes older and less expensive, more and more groups (whether for better or worse) will have access to UUVs, the reason that further developing UUV technology is of such great interest to the defense industry becomes more and more apparent.
Hopefully this post served as a helpful primer on unmanned drone technology and the role(s) that UUVs play in the defense (and other) industry(industries). This upcoming Tuesday (12-16), I will be continuing off this post with a Well Read post discussing one way in which UUV technology is being optimized for the purpose of undersea warfare through the utilization of advanced biomimetics (that is, by mimicking the various ways by which fish swim!). Be sure to check back Sunday for an Open Mind post form Andrew and please continue to help us to share our fundraising efforts at GoFundMe.com/TeamUV
Last weekend Team UV presented some of our fluids research for our underwater vehicle at the 22nd annual Southern California Conferences for Undergraduate Research (SCCUR) at the California State University, Fullerton. We enjoyed the opportunity to both get a look at some of the research students at other universities are conducting and to share some of what we have done, as well as to share the website, with students and faculty from other universities. We will also be looking into the possibility of bringing our research to more conferences in the future.
We would also like to update our readers with regards to the progress we have made in our fundraising campaign. Thus far, with your support, we have been able to raise $570! Thank you all for your donations and support, they will absolutely prove incredibly useful in the coming months as we begin to manufacture parts, have some of our more intricate components made, buy materials, equipment, and other components, and begin to design experiments and the necessary testing rigs. We would just like to remind our supporters to please continue to help spread the word about our project, share our fundraising campaign (GoFundMe.com/TeamUV), and if you feel so compelled, to donate to our senior project team to help us to reach our goals and produce our stealthy unmanned underwater ISR (Information, Surveillance, and Reconnaissance) vehicle, which we hope can one day help to save lives by taking more of our troops out of the field.
Please remember to check back tomorrow for Abraham’s Presentation post!
A while back, Team UV was selected to present some of our research regarding our underwater vehicle and, more specifically, its propulsion system at the 2014 Southern California Conferences for Undergraduate Research, which will take place at the California State University, Fullerton. So this Saturday (November 22nd), for anyone who might be in attendance, we will we will be presenting during the Oral Session III (from 1445-1545 hours) in room SGMH-2211!
Also, we want to thank those of you who have contributed to our fundraising campaign and mention that we have already raised 11% of our goal of $5,000 thanks to your generous donations! Thank you for your support and please continue to help spread the word!
We also want to note that no donation is too small and not a single penny donated will go to waste, it will all be used to increase the quality of our vehicle, to add capabilities (through additions to the sensor suite or additional drag-reducing technologies, etc.), and to enable us to conduct better testing (i.e. the construction of a flow tank for actual flow visualization). As follows from the above statement, any money that we raise above the $5,000 will be put directly into the project in one of many way, including (but not limited to) those listed above.
Lastly, I want to remind our readers that we will be posting campaign progress updates on average once a week (Wednesdays 1000 hours) and that you can find a full-sized PDF of our pull-tag poster on our Sponsors & Donations page if you would like to print one out and post it to help get the word out. If you would like to help out in other ways, it would mean a lot to us if you would tell your friends/family/coworkers/etc. about our fundraising campaign (and possibly ask them to share it as well), share it on Facebook, or perhaps even just spread the word about TeamUV.org in general, as our biggest goal with regards to this website is to inspire interest in the fields of Science, Technology, Engineering, and Mathematics (STEM).
Any help is greatly appreciated and please come back tomorrow for Ketton’s Presentation post!
A couple of days ago, Team UV launched its fundraising campaign on GoFundMe.com under the name “Experimental Marine Vehicle Project” in an effort to raise the money necessary for us to manufacture and test our college senior project – a highly maneuverable, higher speed, stealthy, unmanned underwater vehicle with Information, Surveillance, and Reconniassance (ISR) capabilities. Our project is meant to create a vehicle that can conduct naval ISR and, in doing so, take the special operators or otherwise troops who would usually conduct this ISR out of the field and thus harm’s way. More information about our senior project can be found on the About page of this website, and the fundraising campaign can be found at GoFundMe.com/TeamUV; this link is also listed in the right margin of the Home page and in the Sponsors & Donations page of this website.
We are seeking $5,000 in order to cover the manufacturing costs of our vehicle, which will feature many cutting-edge technologies and represents a stark departure from the slow, bulky, impractical, non-stealth-like designs currently in use. We also want to note that no donation is too small and not a single penny donated will go to waste, it will all be used to increase the quality of our vehicle, to add capabilities (through additions to the sensor suite or additional drag-reducing technologies, etc.), and to enable us to conduct better testing (i.e. the construction of a flow tank for actual flow visualization). As follows from the above statement, any money that we raise above the $5,000 will be put directly into the project in one of many way, including (but not limited to) those listed above.
Lastly, I will note that we will be posting campaign progress updates on average once a week (Wednesdays 1000 hours) and that you can find a full-sized PDF of our pull-tag poster on our Sponsors & Donations page if you would like to print one out and post it to help get the word out. If you would like to help out in other ways, it would mean a lot to us if you would tell your friends/family/coworkers/etc. about our fundraising campaign (and possibly ask them to share it as well), share it on Facebook, or perhaps even just spread the word about TeamUV.org in general, as our biggest goal with regards to this website is to inspire interest in the fields of Science, Technology, Engineering, and Mathematics (STEM).
Any help is greatly appreciated and please come back tomorrow for Andrew’s Presentation post!