An aerospace bracket designed by thermo-elastic topology optimization and manufactured by additive manufacturing

作     者：Guanghui SHI Chengqi GUAN Dongliang QUAN Dongtao WU Lei TANG Tong GAO Guanghui SHI;Chengqi GUAN;Dongliang QUAN;Dongtao WU;Lei TANG;Tong GAO

作者机构：Beijing Aerospace Technology InstituteBeijing 100074China State IJR Center of Aerospace Design and Additive ManufacturingNorthwestern Polytechnical UniversityXi'an 710072China Institute of Intelligence Material and StructureUnmanned System TechnologiesNorthwestern Polytechnical UniversityXi'an 710072China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2020年第33卷第4期

页      面：1252-1259页

核心收录：

学科分类：08[工学] 082503[工学-航空宇航制造工程] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Key Research and Development Program of China(Nos.2017YFB1102800,2016YFB0201600) the National Natural Science Foundation of China(Nos.11672239,51735005) 

主　　题：Additive manufacturing Aerospace bracket Selective laser melting(SLM) Thermo-elastic Topology optimization 

摘      要：Combination of topology optimization and additive manufacturing technologies provides an effective approach for the development of light-weight and high-performance structures.A heavy-loaded aerospace bracket is designed by topology optimization and manufactured by additive manufacturing technology in this *** both mechanical forces and temperature loads,a formulation of thermo-elastic topology optimization is firstly proposed and the sensitivity analysis is derived in *** the procedure of numerical optimization design is presented and the final design is additively manufactured using Selective Laser Melting(SLM).The mass of the aerospace bracket is reduced by over 18%,benefiting from topology and size optimization,and the three constraints are satisfied as well in the final *** work indicates that the integration of thermo-elastic topology optimization and additive manufacturing technologies can be a rather powerful tool kit for the design of structures under thermal-mechanical loading.