Abstract
Modification of the compliance of the suspension mounting points does not always reduce road noise. Body input forces are sometimes affected by characteristics of the suspension mounting points via a mechanism which is still unknown. In this study, the transfer function synthesis method was used to examine the mechanism of change in body input forces. The compliance balance between suspension arms, bushings and mounting points was shown to be an important factor in changing the input forces. Judging whether the compliance of the suspension mounting points should be reduced, make it possible to clarify directions for countermeasures for road noise.
