RobbyObby
03-05-2013, 08:47 AM
Hey guys!
I'll be focusing a good deal of attention for my Senior Design Project next semester on the testing, analysis, and theory of torsional rigidity for a racecar. I'd like to gather some info on the test setup/procedures different teams use and compare each one to determine/verify the most accurate setup.
So if your team is willing to give me some basic info I'd love to hear from you. This is strictly optional (obviously) and I don't need actual numbers, just how/when/if you guys run your TR tests. You can either post here on this thread or PM in the forums if you want to keep your info private. I can also be reached at sampsonrm (at) comcast (dot) net.
My hope at the end of this is to compile and publish a paper on the relative merits/accuracy of different test procedures for measuring the torsional stiffness of a racecar chassis. Obviously no personal team/university details will be included, but if you would like your info to be excluded from the data in the paper, please mention as such.
Here's the info I'd like to get:
(Including team name/university name is optional)
1. What type of chassis do you run? (spaceframe, monocoque, hybrid, ...)
2. Does your team run a TR test?
3. When during the competition cycle (expected and actual) do you run your TR test? (# months prior to competition)
4. Do you run FEA simulations during the design process? If yes, what simulation do you run? (frame only, through modeled suspension, static/dynamic/both, ...)
5. What stiffness parameter(s) do you measure? (Frame only, installed stiffness w/ suspension, both, stiffness distribution, ...)
6. How do you set up your physical test? (fixtures, loads, gauges, ...)
7. Lastly, how do you determine a target stiffness value in the design phase? (compare to rigid case, chassis efficiency, 10x difference in roll stiffness, LLTD approach, ...) (This is a very loaded question and extremely optional, as some consider it a "trade secret")
You can be as detailed or as vague as you'd like. Again, the goal for this is strictly to create a data pool with which to run statistical analysis.
I look forward to hearing from you all!
I'll be focusing a good deal of attention for my Senior Design Project next semester on the testing, analysis, and theory of torsional rigidity for a racecar. I'd like to gather some info on the test setup/procedures different teams use and compare each one to determine/verify the most accurate setup.
So if your team is willing to give me some basic info I'd love to hear from you. This is strictly optional (obviously) and I don't need actual numbers, just how/when/if you guys run your TR tests. You can either post here on this thread or PM in the forums if you want to keep your info private. I can also be reached at sampsonrm (at) comcast (dot) net.
My hope at the end of this is to compile and publish a paper on the relative merits/accuracy of different test procedures for measuring the torsional stiffness of a racecar chassis. Obviously no personal team/university details will be included, but if you would like your info to be excluded from the data in the paper, please mention as such.
Here's the info I'd like to get:
(Including team name/university name is optional)
1. What type of chassis do you run? (spaceframe, monocoque, hybrid, ...)
2. Does your team run a TR test?
3. When during the competition cycle (expected and actual) do you run your TR test? (# months prior to competition)
4. Do you run FEA simulations during the design process? If yes, what simulation do you run? (frame only, through modeled suspension, static/dynamic/both, ...)
5. What stiffness parameter(s) do you measure? (Frame only, installed stiffness w/ suspension, both, stiffness distribution, ...)
6. How do you set up your physical test? (fixtures, loads, gauges, ...)
7. Lastly, how do you determine a target stiffness value in the design phase? (compare to rigid case, chassis efficiency, 10x difference in roll stiffness, LLTD approach, ...) (This is a very loaded question and extremely optional, as some consider it a "trade secret")
You can be as detailed or as vague as you'd like. Again, the goal for this is strictly to create a data pool with which to run statistical analysis.
I look forward to hearing from you all!