Simulation Analysis and Research on Lightweight Vehicle Doors Based on Response Surface Approximation Model
In order to achieve lightweight of the car door,the stiffness and modal of the car door are first ana-lyzed to ensure that all performance requirements are met.The sensitivity analysis results of mass and modal fre-quency are used to screen out the plate thickness of some components of the car door as design variables.The op-timal Latin hypercube experimental design method is combined with finite element simulation model to solve the basic data collection for constructing a second-order response surface model,On the basis of the second-order re-sponse surface model,multi-objective optimization is carried out by combining the second generation non domina-ted genetic algorithm.The results show that the quality of the car doors has decreased by 4.45%.
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