Generally, it is well known that road noise generated by vibration from automobile tires and suspensions can be reduced by changing the stiffness of the rubber mounts installed in the suspension systems. Such stiffness, however, is rarely changed to avoid riding discomfort and so on.In this paper, a stiffness optimization method for suspension system rubber mounts that reduces road noise, and improves riding comfort as well, is presented. In the process, Road Noise Contribution Analysis (RNCA) is applied to the target vehicle to specify the major factors of road noise. Furthermore, the suspension system of the vehicle is investigated by Sensitivity Analysis using Measured FRF data (SAMF) to identify the optimal stiffness combination of rubber mounts. As a result, an effective stiffness combination of two mounts is specified to reduce road noise and to improve riding comfort.
A Stiffness Optimization Procedure for Automobile Rubber Mounts
Sae Technical Papers
SAE 2001 Noise & Vibration Conference & Exposition ; 2001
2001-04-30
Conference paper
English
Optimization , Vibration , Elastomers , Roads and highways , Tires , Comfort , Suspension systems , Noise
Optimization procedure of rubber mounts for interior noise reduction of passenger car
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