Optimization design of automotive cab acoustic package based on hybrid FE-SEA method
Taking a vehicle model as the research object,an intermediate frequency noise prediction model of the cab was established based on the hybrid finite element statistical energy method.Then,through the real vehicle test,the signals under the text conditions were obtained,and the accuracy of the constructed hybrid FE-SEA model of the cab was verified.Then,through the analysis of the contribution of the interior noise,the main direction of the optimization of the acoustic package was determined.The Latin hypercube sampling method was used for design of experiments,based on this,a Kriging approximation model was constructed,and the acoustic package layout parameters were optimized using genetic algorithm.The effectiveness of the optimization scheme was verified.The optimization results showed that reasonable optimization of the acoustic package layout parameters of key panels can effectively reduce the noise level in the cab.
NETL
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