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The Wheel Trough - Page 9 - Buggy Alumni Association

The Wheel Trough

User avatar
BuggyBob
Posts: 129
Joined: Sun Oct 26, 2008 8:42 am
Organization: SAE
Graduation Year: 1974
Real Name: Rob Thomas
Location: Stealing Your Wheels

Re: The Wheel Trough

Postby BuggyBob » Fri Apr 30, 2010 2:20 pm

* "I love the smell of solvents at Free Roll. It smells like......victory".
* "I'm loosing my mind, but I don't seem to miss it much."

User avatar
Carl Nott
Posts: 313
Joined: Wed Oct 15, 2008 4:24 pm
Organization: Spirit
Graduation Year: 1998
Real Name: Carl Nott
Location: Seattle

Re: The Wheel Trough

Postby Carl Nott » Fri Apr 30, 2010 2:34 pm


User avatar
revo
Posts: 149
Joined: Mon Oct 13, 2008 3:37 pm
Organization: Fringe
2nd Organization: Sweepstakes
Graduation Year: 2000
Real Name: Scott Ziolko
Location: SoCal

Re: The Wheel Trough

Postby revo » Fri Apr 30, 2010 2:40 pm


User avatar
TommyK
Posts: 208
Joined: Sat Oct 11, 2008 11:29 pm
Organization: Fringe
Graduation Year: 2001
Real Name: Thomas Sean Kelleher
Location: Kailua, HI

Re: The Wheel Trough

Postby TommyK » Fri Apr 30, 2010 3:23 pm

http://www.fi.edu/flights/first/makebigger/index.html

BAA's next project? communal wind tunnel?
Could be one of the measurable parameters for the new and improved design comp.
How cool would it be to have this setup in the gym and each buggy has to be drag tested before going in to the judges?

User avatar
TommyK
Posts: 208
Joined: Sat Oct 11, 2008 11:29 pm
Organization: Fringe
Graduation Year: 2001
Real Name: Thomas Sean Kelleher
Location: Kailua, HI

Re: The Wheel Trough

Postby TommyK » Fri Apr 30, 2010 3:59 pm

Last edited by TommyK on Fri Apr 30, 2010 7:06 pm, edited 2 times in total.

User avatar
Carl Nott
Posts: 313
Joined: Wed Oct 15, 2008 4:24 pm
Organization: Spirit
Graduation Year: 1998
Real Name: Carl Nott
Location: Seattle

Re: The Wheel Trough

Postby Carl Nott » Fri Apr 30, 2010 4:08 pm


billet
Posts: 15
Joined: Mon Apr 19, 2010 4:20 pm
Organization: Fringe
Graduation Year: 2000
Real Name: Ken Billet

Re: The Wheel Trough

Postby billet » Fri Apr 30, 2010 4:16 pm


User avatar
lemuroid
Posts: 241
Joined: Sun Oct 12, 2008 8:41 pm
Organization: Ultimate Soap Box Derby
2nd Organization: SigNu
Graduation Year: 1987
Real Name: Mark Estes
Location: Calabasas CA or Sunnyvale CA
Contact:

Re: The Wheel Trough

Postby lemuroid » Fri Apr 30, 2010 5:10 pm


User avatar
Jmohin
Posts: 73
Joined: Mon Apr 12, 2010 12:20 am
Organization: SigEp
Graduation Year: 2010
Real Name: Jake Mohin
Location: Pittsburgh, PA

Re: The Wheel Trough

Postby Jmohin » Fri Apr 30, 2010 5:51 pm

What's a "chipmunk" fairing? Fringe/Nemesis-style? It kind of does look chipmunk-y, and it does increase frontal area. Probably helps more with wheels though, which matters more.

As for an aero-test chamber, a water chamber would work, with one modification.
Attach two scale models to a long cylindrical winch with two cables. Put a force meter halfway through the cable. Thus, the buggies are being pulled the same rate and the average force indicates overall resistance, instantaneous results might indicate the terminal velocity (when force gets constant.)

Water chamber has the distinct advantage of no fans and large space required, and also lower speed to reach terminal velocity.
Disadvantage - can't see turbulent flow (vs. smoke in an wind tunnel), everything must be a copy or a scale model as to not get wet. Most orgs probably cant afford to make scale models.

User avatar
Carl Nott
Posts: 313
Joined: Wed Oct 15, 2008 4:24 pm
Organization: Spirit
Graduation Year: 1998
Real Name: Carl Nott
Location: Seattle

Re: The Wheel Trough

Postby Carl Nott » Fri Apr 30, 2010 6:26 pm

Hmm. Do like the winch idea, but I still think the masses would want to see one buggy edge ahead, as opposed to reading the results on a display. :D So I was thinking each buggy would have it's own motive system, like an electric motor with constant draw. Or... hehe, could use a weight at the end of a pulley, I suppose.

Can't afford to make scale models? I'll bet the BAA could track down a company who specializes in 3D scanning, and I would imagine that company probably does 3D printing as well. ('Hello, I'm an alumni from Carnegie Mellon University. Would you be interested in performing a demonstration of your company's capacity for rapid prototyping in front of hundreds of students who will be graduating soon and being hired by top engineering, technical, and design firms all across the country?') So you show up for design comp, your entered buggy (if any) gets scanned, they print out a 3D scale model for 'the flow racing', and then the design comp judges can rate your design for symmetry and computer modeled flow performance vs. observed flow performance.
Best of all teams that enter get a shiny copy of their design in electronic form. :D


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