汽车发动机连接支架拓扑优化及增材制造研究  

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

作　　者：刘英杰 胡强 赵新明[2,3] 张少明 黄帅[4] 王永慧[2] LIU Yingjie;HU Qiang;ZHAO Xinming;ZHANG Shaoming;HUANG Shuai;WANG Yonghui(Industrial Research Institute for Metal Powder Material,GRINM Group,Beijing,101407;GRINM Additive Manufacturing Technology Co.,Ltd.,Beijing,101407;General Research Institute for Nonferrous Metals,Beijing,100088;Automotive Research Institute,Baic Motor Co.,Ltd.,Beijing,101300)

机构地区：[1]有研科技集团有限公司金属粉体材料产业技术研究院,北京101407 [2]有研增材技术有限公司,北京101417 [3]北京有色金属研究总院,北京100088 [4]北京汽车股份有限公司汽车研究院,北京101300

出　　处：《中国机械工程》2023年第18期2238-2247,2267,共11页China Mechanical Engineering

基　　金：国家重点研发计划(2021YFB3701201);北京市科技计划(Z221100005822002,Z181100009818004)。

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。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.

关 键 词：汽车发动机 轻量化 拓扑优化 增材制造 

分 类 号：TH162[机械工程—机械制造及自动化] TG156.1[金属学及工艺—热处理]