Topology Optimization Analysis and Comparative Study of Collapsible Front Compartment Storage Box in New Energy Vehicles
The front cabin storage box is a basic configuration in new energy vehicles,but the design of the truss support structure for the storage box is challenging.If the truss structure often lacks sufficient strength,it will lead to bottom collapse issues.While overly strong support structures may also risk causing detachment of the side walls of the storage box.Therefore,this study utilizes a topology optimization method to analyze and compare the optimization of the bottom collapse issue in the storage box of a specific brand of new energy vehicle.Firstly,finite element modeling and grid division are performed on the front cabin storage box.Secondly,to address the issue of insufficient strength,a topology optimization mathematical model is constructed,and a simulated annealing algorithm is used for model solution.Thirdly,based on the solution results,the design of the support truss for the storage box is optimized,and adjustments are made to the finite element model.Finally,two simulation scenarios are conducted:Z-directional-5G acceleration with the addition of 25 kg and 30 kg weights inside the cabin,respectively.The optimized measures for four different truss structures are compared through simulation,and the results demonstrate a significant improvement in the load-bearing state of the optimized storage box.
new energy vehicleforecastle storage boxcollapse problemtruss structuredesign optimization
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