View Full Version : Virtual FSAE Online Competition
Ben Beacock
04-07-2003, 08:47 AM
Now that my interest has been re-kindled in RACER, i've figured out a way to convert our I-DEAS model into a mesh model (with a reasonable polygon count).
Would anyone be interested in an online FSAE competition sometime after the real competition? Many teams should have a CAD model of some kind, and the conversion works with an IGES file export, then to .3ds then to the RACER .dof format. I beleive it would also work with STEP files.
The physics .ini could be adjusted to the car's actual dyno output, mass and CG while keeping a standard tire model. Perhaps a standard suspension as well?
Ben Beacock
Chassis Design and Technical Coordinator
Gryphon Racing - University of Guelph
Ben Beacock
04-07-2003, 08:47 AM
Now that my interest has been re-kindled in RACER, i've figured out a way to convert our I-DEAS model into a mesh model (with a reasonable polygon count).
Would anyone be interested in an online FSAE competition sometime after the real competition? Many teams should have a CAD model of some kind, and the conversion works with an IGES file export, then to .3ds then to the RACER .dof format. I beleive it would also work with STEP files.
The physics .ini could be adjusted to the car's actual dyno output, mass and CG while keeping a standard tire model. Perhaps a standard suspension as well?
Ben Beacock
Chassis Design and Technical Coordinator
Gryphon Racing - University of Guelph
Sam Jowa
04-07-2003, 08:50 AM
LOL...Wow this sounds like a true definition of an "EngiNERD" Sorry, it might be fun, but I just had a good laugh. LOL
dr47watson
04-07-2003, 09:27 AM
Ben,
How about a spec series where we all race your car? I have been trying to get our car into f1 2002, but that project is on the back burner until we get the real car done. I would be glad to take you on in your own ride though.
Rich
Ben Beacock
04-07-2003, 09:51 AM
Gee.. I take a weekend away from welding and grinding and all the sudden I'm a nerd again.. LOL
The program to convert the 3ds models (Zmodeler) will also export F1-2001 files. The F1-2002 physics are pretty awesome, but quite complicated to configure from what I've read.
Ben Beacock
Chassis Design and Technical Coordinator
Gryphon Racing - University of Guelph
imajerk
04-07-2003, 01:26 PM
Don't waste your time with trying to put your cars into game engines... it doesn't work. Why don't you just race F1 cars around the place - which would be _much_ more funhttp://fsae.com/groupee_common/emoticons/icon_smile.gif
Jerk.
phonyMcRingRing
04-07-2003, 01:41 PM
Yeah, or we could have a Van/Truck-Cross after the competition to see who has the fastest transportation to the competition. That'd be pretty fun too.
Formula MUN Seahawks Race Team
"Hi, I'm phonyMcRingRing, president and mascot of the telephone company..."
imajerk
04-07-2003, 03:09 PM
Even better, we could put the transporters in the computer game and virtually see who has the fastest transportershttp://fsae.com/groupee_common/emoticons/icon_wink.gif
Jerk.
Scott Wordley
04-07-2003, 05:33 PM
What the hell are you talking about John?! (Mexico)
All you've done for the past 2 weeks is put our car into that bloody game! And it probably does work if you remember the primary reduction gear...
And what is with that silly nickname, and Jerk signature? I thought you were just calling everyone jerks. Why not use your own name rather than our team's?
Anyway Ben your idea is a great one. Of course you need your own suspension, weight, cg, power curves, gearing, track and wheelbase not to mention aero. Why not post the car models on a site somewhere (here?) and let other teams virtually race around in your car. It may be the closest you guys ever get to 2g cornering... hehehe
Regards,
Scott Wordley & Roan Lyddy Meaney
Monash FSAE Wingmen
http://www-personal.monash.edu.au/~fsae
imajerk
04-07-2003, 08:11 PM
On no! my plot of misinformation has been discovered by my Team Leader!
Still, I don't think using a dynamic model in a computer will be useful if you:
1. Don't have the time/dedication to get accurate data in.
2. Don't have access to proper testing facilities and required software to make the data input useful.
So, in conclusion it's not for everyone. Myself, it has been 2 weeks... and I'm still not done with out 2002 cars dynamic model. It is getting closer however and will probably be done in another 2 weeks.
We do have an advantage of a custom built track, which strongly resembles a FSAE track to conduct driver training and development on.
Peace Out
Best Regards,
John Meszaros
Monash FSAE NA
<A HREF="http://www-personal.monash.edu.au/~fsae" TARGET=_blank>http://www-personal.monash.edu.au/~fsae</A>
Ben Beacock
04-10-2003, 12:27 PM
Our model is mostly (and will remain due to time constraints)
a) promotional
b) driver training since we've only have about 15 minutes (and about 50m) combined experience driving a FSAE car
I did notice importing the goodyear tire data pacejka model that i had to negate two of the longitudinal (b2 and b7 I think?)constant values for RACER. Something is off though, cause I canm pull 3.5G http://fsae.com/groupee_common/emoticons/icon_biggrin.gif
Ben Beacock
Chassis Design and Technical Coordinator
Gryphon Racing - University of Guelph
Scott Wordley
04-10-2003, 08:41 PM
John just sent me this model he was putting together for the game.
http://www-personal.monash.edu.au/~fsae/ingamemodel2.jpg
http://www-personal.monash.edu.au/~fsae/ingamemodel3.jpg
I say we build it just the same.
Regards,
Scott Wordley & Roan Lyddy Meaney
Monash FSAE Wingmen
http://www-personal.monash.edu.au/~fsae
Michael Jones
04-10-2003, 11:25 PM
Wow. This thread progresses any further, and the 2004 competition will be virtual. For better or worse.
Intriguing to see how such off-the-shelf technologies could be used to further engienering design though. Video game desginers have already contributed a great deal to understanding sports physiology, since they collect more data than your average team phsyician or kinesiology lab can.
---
Cornell Racing
http://fsae.mae.cornell.edu
Marc Jaxa-Rozen
04-12-2003, 02:49 PM
Anyone else having trouble with abysmal acceleration figures, or are the stock torque curves for these engines just totally unsuited for an FSAE? That's what I'm using (results from a stock CBR dyno sheet) and my quarter mile times are closer to a riced-out Civic than to a purebred track machine.
An earlier model in a specialized drag racing package gave me decent times with a similar torque curve, so I figure Racer must be the problem.
Anyway, I'll post our car.ini later, I don't really have time to mess with 3D models.
Ben Beacock
04-12-2003, 06:34 PM
yeah, I get 15 second drag runs, and thats not traction limited. I figure it has something to do with the inertia values for all the components (gears, engine, wheels) since I haven't modified any of them. It could also be something with the dynamic engine braking..
Ben Beacock
Chassis Design and Technical Coordinator
Gryphon Racing - University of Guelph
Powered by vBulletin® Version 4.1.5 Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.