Topology Optimization Design of Bus Body Structure Based on Altair-Optistruct

In this paper, the Finite Element Method (FEM) is used to study the topology optimization of bus body structure by Altair-OptiStruct software. Firstly, based on the maximum principle of optimization space, the topology optimization area is established. Then the topology optimization is calculated under the bending condition and bending and torsion condition. Finally, the performance of the body structure is verified. Results show that the performance of structure has been improved and the weight of the body has decreased by 3.8% after topology optimized, which can provide reference for the bus body lightweight design.

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