1988-04-01

Analytical Optimization of Chassis Components for Reduction of Vehicle Sound and Vibration 880884

With the adoption of large-scale vehicle system models for NVH analysis, it has become possible to optimize the properties of chassis components to minimize the perception of vibration and/or sound in a vehicle. It has been found that these analytical optimization procedures are useful both in the early concept stage of the vehicle design/development process and in the subsequent component detailed design stage. While the process is rather complex and costly, it can be less costly than the alternative — the building and testing of multiple prototype parts or vehicles. From this standpoint, it may be that analytical optimization is the only practical way of evaluating the many combinations of design parameters that could lead to improved vehicles. To reduce the complexity of the analytical procedure, the vehicle modeling process has been automated and software pre and post-processors have been produced to supplement the primary analysis and optimization codes. This paper presents an overview of the analysis/optimization procedure and specific examples of its use.

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