Structure optimization method for reinforcing rib of large panel of vehicle body
An optimization method and reinforcing rib technology are applied in the automotive field to achieve the effects of reducing optimization difficulty, high efficiency, and reducing the lengthening of the research and development cycle.
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[0031] The present invention will be further described below in conjunction with the accompanying drawings.
[0032] like figure 1 A structural optimization method for stiffeners of a large panel of a vehicle body is shown, including the following steps:
[0033] S1. Finite element modeling of the vehicle:
[0034] According to the needs of vehicle NVH simulation analysis, a finite element model for vehicle NVH simulation analysis is established.
[0035] S2. Simulation analysis of road vibration and noise:
[0036] Based on the NVH simulation analysis of the whole vehicle, the finite element model and the random excitation of the road surface are loaded with excitation at the grounding point of the tire model, and the low-frequency road vibration and noise simulation analysis is carried out to obtain the noise responses of the right ear of the driver and the right ear of the right rear passenger.
[0037] S3. Analysis and identification of the cause of the problem:
[003...
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