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Old 05-06-2013, 01:52 PM   #86
Hancha Group
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Originally Posted by u/Josh View Post
Of these, I think comparing different damping curves, along with testing the effects of changing unsprung weight are most interesting. Also, the frequency response would be interesting just to show why it is smoother when you drive faster over bumps. I'll plug this in to MATLAB when I get a minute free at school.

I have thought about trying to convert this to a 4 wheel model and I can't quite get my head around how y1, y2, etc should be constrained to represent an actual chassis. What I have come up with so far is that if you consider the chassis to be the x-z plane then the points (x1,y1,z1) and (x2,y2,z2) etc, would have to all lie on the same plane; Where xi and zi are the coordinates where the i'th wheel is. It's late, I hope this makes sense.
Wait. First, let's all get on the same reference frame. Are we all thinking X is the longitudinal direction of the car, Y is the lateral direction of the car, and Z the vertical?

Also, where are we going to place the origin? Center of the wheels on the ground plane?
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