[SOLVED] Vehicle Sleep Problem

[cem.orsel]

Hi, 

 

I have a vehicle with 4 wheels attached to it with JointSuspensions. When the simulation starts, the wheels make small vibrations up and down, and i couldn't make them stop. I tried playing with penetration factor/tolerance and frozen linear/angular velocity parameters, but could not get any significant result. Do you have any idea what might cause this?

[alterego]

Hello,

 

Possible reasons are:

1)    Improperly configured Shape Wheel.

           setFriction (float friction) Sets a friction of the shape surface.

           setRestitution (float restitution) Sets a restitution of the shape surface.

 

2)    Poorly tuned suspension.

           setLinearDamping (float damping) Sets a linear damping of the suspension.

           setLinearSpring (float rigidity) Sets a rigidity coefficient of the suspension.

 

3)   Not enough iterations.

           setNumIterations(int iterations)

 

4)  The large mass of the car or wheels.