Variation of Body Damping kB
In the figure, the body damping is varied. Stiffer body damping has a positive effect around the range of natural frequencies of both body acceleration (suspension comfort) and the dynamic wheel load fluctuation (road grip of the wheels, active safety). In the ranges outside the points of resonance however, the body acceleration particularly, is positively influenced by a soft damper.
Tuning of body damping consequently always requires a compromise to be made between the requirements of the various frequency ranges.