Research on Topology Optimization and Additive Manufacturing of Automotive Engine Connection Brackets

doi:10.3969/j.issn.1004-132X.2023.18.011

Abstract

Abstract: The topology optimization and additive manufacturing of automotive engine connecting brackets were studied. Topology optimization module of ANSYS Workbench was used to optimize the connecting brackets of automotive engine air-conditioning compressors, the mass was reduced by about 43.8% and the first-order resonance frequency was increased by about 23%(increase to 255 Hz), and the mechanics properties of the optimized structures were significantly better than those of the original castings. The heat treatment system of aluminum alloy parts made by additive manufacturing was studied, and a better heat treatment system was obtained. The integrated technology of topology optimization and additive manufacturing of the key components of automobile engine was developed.

Key words: automobile engine, light weight, topology optimization, additive manufacturing

摘要： 开展汽车发动机连接支架拓扑优化及增材制造研究，利用ANSYS Workbench软件中的Topology Optimization模块对汽车发动机空调压缩机连接支架进行拓扑优化，并开展增材制造工艺研究，完成拓扑优化件打印。打印件与铸件相比质量减小约43.8%，一阶共振频率提高约23%（提高到255 Hz），且优化后的支架结构力学性能显著优于原铸件的力学性能；同时进行增材制造铝合金件热处理方法研究，获得了较优的热处理方法。实现了汽车发动机关键零部件的拓扑优化增材制造一体化技术开发。

关键词: 汽车发动机, 轻量化, 拓扑优化, 增材制造

CLC Number:

LIU Yingjie, HU Qiang, ZHAO Xinming, ZHANG Shaoming, HUANG Shuai, WANG Yonghui. Research on Topology Optimization and Additive Manufacturing of Automotive Engine Connection Brackets[J]. China Mechanical Engineering, 2023, 34(18): 2238-2267.

刘英杰, 胡强, 赵新明, 张少明, 黄帅, 王永慧. 汽车发动机连接支架拓扑优化及增材制造研究[J]. 中国机械工程, 2023, 34(18): 2238-2267.

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