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-   -   2008 ASME Human Powered Vehicle Challenge (https://ecomodder.com/forum/showthread.php/2008-asme-human-powered-vehicle-challenge-2391.html)

trebuchet03 05-17-2008 03:12 AM

2008 ASME Human Powered Vehicle Challenge
 
You may, or may not, know... I'm an undergraduate student and I've been competing the these Human Powered Vehicle Challenges...

Every year, ASME holds an East and West (and now one in Venezuela) event. There's a design event, sprint event and 65K endurance. Scores are based on points earned from each event, the design being worth 40% and the sprint/endurance worth 30% each. The design is a 30 page (max) technical paper and 5 minute oral presentation with a few follow up questions (which, by the way, I nailed with 20 seconds to spare for extra questions :D).

Here's a few photos from the event... I'm waiting to get more as I was so busy running around/managing this year that I didn't take too many.

http://primitiveengineering.com/blog...vent/rhit2.jpg
Rose Hulman IT - They took 1st overall... That's a monocoque frame/fairing (CF/Kevlar - honeycomb - Kevlar) with steel sub frame for the drive train. I got to talk with the team (nice people) and ride this one after the event in it's endurance mode (as seen here - they have a fully sealed canopy too). It's solid - a really nice ride.

http://primitiveengineering.com/blog.../event/mst.jpg
Missouri S&T (Formerly UMR) - 2nd overall. That's a steel frame with carbon fairing and composite roll bar. The resolution of this picture is low, but there seemed to be a rider fit issue with one of the pilots - constant rubbing on the windscreen caused his knees to open up and pour quite a bit of blood :/

http://primitiveengineering.com/blog...vent/sdsmt.jpg
They had a cool looking composite axle - super wide... It really pulled through the tight corners.

http://primitiveengineering.com/blog...t/umrtrike.jpg
Another MST vehicle - they competed in the utility portion too... Rear wheel steering to boot. While not necessarily novel, I gota give them credit for having the testicular fortitude to go for RWS :D

http://primitiveengineering.com/blog...event/olin.jpg
Olin College with their super low racer... Their previous vehicle was very low, somehow, they got even lower... I think that made it a little awkward for balancing and their affectionate nickname was "Rolling Olin" - that roll bar was well used - but a totally cool vehicle :thumbup:

http://primitiveengineering.com/blog...t/clarkson.jpg
Awesome fairing :) Looks stunning :thumbup: They obviously had some balance issues, fixed overnight with support struts :thumbup: That tail comes to a flat plane (not a point).


http://primitiveengineering.com/blog...vent/grove.jpg
Grove CC - A reliable mid-racer... While I didn't see it in action, they have landing gear (with wheels) that allows them to stop without putting their feet down. They won first in the design event.

http://primitiveengineering.com/blog.../event/ucf.jpg
UCF - our trike :thumbup: So we actually hit a hay bale somehow... Not sure how he managed that... Oh, and someone actually fell on the nosecone - he fell on his back, full 180lb+ of weight... It sprang right back into position :thumbup: So due to some technical problems in the beginning of the race, the front support mount kept coming off due to incredibly bumpy road causing the nose to drop sufficiently to cause some rubbing. I too had bleeding knees, but only a little (a small band aid was enough to cover it).

We came in 8th overall... Which, given the conditions during the sprint (20+++ sustained cross wind with much higher gusts) and the problems we had with the mounting points - I'm happy with. Not to mention - it was freaking cold (I drove through snow on the way home)!




-----
So getting there... what happened? As there was drama.... It turned out, we had the budget for a minivan rental :thumbup: Alas, the teammate that was supposed to drive with me had to pull out last minute :mad: So I drove 1300+ miles by myself (1030 in one day) :/ I added a packing tape grille block in addition to removing the roof rack cross bars and averaged 23.8mpg round trip... Alas, I couldn't drive as slow as I wanted as there just weren't enough hours in the day to do so - but I had a lot of P&G action on the hills :thumbup:

Average mpg: 23.8
Average Fuel Cost: $3.536
Highest Fuel: $3.706
Cheapest Fuel: 3.388 (Florida)
Total Miles: ~2800

I'll have more photos eventually (when I get them) :D

trebuchet03 05-17-2008 03:16 AM

http://primitiveengineering.com/blog.../event/usb.jpg
I almost forgot USB! From Venezuela :) Very functional fairing/frame - and we found my Latin equivalent (according to my team). He's got similar manurisms, body structure, questions etc. compared to me - we took a few photos together (I need to get them though). They scored 5th overall.

adam728 05-17-2008 08:44 AM

Nice, I did this back in 2004 with Michigan Technological University. We took 1st for design, but had problems in the competition. In the sprint event one rider took out a traffic barrier, then hit a hay bale and LAUNCHED over it, landing on the side and going for a big tumble at probably 25 mph. Then on the pothole filled endurace course our steering mount cracked, probably in no way related to the X-Games style big air that it saw in the sprint!

http://www.me.mtu.edu/news/HPV_2004-01.jpg

trebuchet03 05-17-2008 02:12 PM

Quote:

Originally Posted by adam728 (Post 26524)
Nice, I did this back in 2004 with Michigan Technological University. We took 1st for design, but had problems in the competition. In the sprint event one rider took out a traffic barrier, then hit a hay bale and LAUNCHED over it, landing on the side and going for a big tumble at probably 25 mph. Then on the pothole filled endurace course our steering mount cracked, probably in no way related to the X-Games style big air that it saw in the sprint!

http://www.me.mtu.edu/news/HPV_2004-01.jpg

No way! I was totally there (and saw that whole sprint crash thing :eek:). That was one sexy machine :thumbup:

wingbatwu 05-20-2008 11:02 AM

Now that the competition is over, will you tell us the weight of your fairing? :)

trebuchet03 05-20-2008 01:38 PM

Quote:

Originally Posted by wingbatwu (Post 27188)
Now that the competition is over, will you tell us the weight of your fairing? :)

Ya totally :thumbup: We measured everything with a digital fish scale.

So the two halves, before combining together weighed 11lb 14oz.

The fairing, combined - 12lb 15oz.

If you include the hatch hinge mechanism - 13lb 9oz

My personal goal was less than 15lb with a target weight of 12lb... Hot damn close if you ask me :D If we had more time to optimize our rib structure we could have 1)used less and 2)shaved off a pound, maybe a little more.

ericbecky 05-20-2008 03:19 PM

This year there was one of these competitions in my small town. Unfortunately the day the group was here it was WINDY.
Must have really made the competition a challenge!


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