Bobber wrote:
Thanks for the reminder on the adding for weight transfer. And that all comes down to the height of the center of gravity.
I thought of trying to simplify things by just looking at the loads from the shock. The spring loads are easy to figure and the shock loads are proportional to their speed. But what is their speed? I'm still searching for typical shock speeds in use.
By simplifying the complicated, I am making the simple more complicated.
I ran into the same issues when doing mine. I could never accuratly find the cg without completly modeling everything.
I assume by shock speed you mean compression speed? Every single shock in the world is different and you would need their dynos to know. The best advise i can give is to pick a shock then email the mfg for a typical graph. Personally, i think you may be over complicating the design. Generally you would determine weight transfer with just the spring rate and tune the shock to th driver peference. No? I also caculated everything front and rear and then ended up completely changing the front spring rate in the front after building the car. Rear hasnt changed.
Good discussion here
http://www.fsae.com/forums/showthread.p ... t-TransferAlso very good
https://www.google.com/url?sa=t&source= ... _ZUc0rcpeg