VIBRATION NOISE REDUCTION ANALYSIS METHOD AND ANALYSIS DEVICE FOR AUTOMOTIVE PANEL COMPONENT

A vibration noise reduction analysis method for automotive panel parts according to the present invention acquires an automotive body mesh model including a vibration noise reduction target panel part model and vibration transmission frame part models, and in which an exciter is set (S1), selects a specific frequency band of the vibration noise reduction target panel part model (S3), specifies a vibration transmission frame part model that greatly contributes to vibration noise in the vibration noise reduction target panel part model (S5), optimizes a sheet thickness of each mesh of the specified vibration transmission frame part model (S7), sets divided areas in the specified vibration transmission frame part model based on the sheet thickness optimized for each mesh (S9), optimizes a sheet thickness of each divided area (S11), and determines divided areas of a vibration transmission frame part and their optimal sheet thicknesses based on the sheet thickness optimized for each divided area (S13).