Damping ratio in the rear axle of a vehicle?

[notts]

I need to know the system damping ratio for a rear axle of a passenger vehicle.
I have done non-damped dynamic analysis, but the forces at the bearing positions are far too higher than the measurement.

If you let me know the methodology to measure the system damping in the rear axle or known damping ratio, it will be highly appreciated.

Thank you.

Y Park

 

[GregLocock]

See my reply in the other forum in which you posted this. Incidentally cross posting is not encouraged on eng-tips. Cheers

Greg Locock