Quarter Car Model Suspension: over-damping not working as expected?

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Jason
Jason 2011-9-20
We have a 2DOF quarter car model designed in simulink. It seems to work as expected until we attempt to over-damp/critically-damp the system by setting suspension damping constant very high.
We would expect a typical overdamped response with a long rise time and no overshoot but instead we get extremely long settling time and lots of overshoot.
Any explanations for why this might be happening?
Cheers, Jason
  1 个评论
Guy Rouleau
Guy Rouleau 2012-8-13
We need more details:
- What equations did you implement? (Can share the model somewhere?)
- What is the amplitude of the displacement?
- What solver are you using? (I would go with variable step, stiff, like ode15s)

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回答（2 个）

Olexander Zhytenko
Olexander Zhytenko 2012-8-13
hello, can I help?
Sujithkumar
Sujithkumar 2012-8-24
Check the model once again,or model it again 80% sure that there is some error in the model from experience

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