Thermoelastic Structural Topology Optimization Based on Moving Morphable Components Framework  

作　　者：Jun Yan Qi Xu Zhirui Fan Zunyi Duan Hongze Du Dongling Geng 

机构地区：[1]Department of EngineeringMechanics,StateKey Laboratory of StructuralAnalysis for Industrial Equipment,International Research Center for Computational Mechanics,Dalian University of Technology,Dalian,116024,China [2]Institute of Structural Health Monitoring and Control,School of Mechanics,Civil Engineering&Architecture,Northwestern Polytechnical University,Xi’an,710072,China [3]Ningbo Research Institute of Dalian University of Technology,Ningbo,315016,China

出　　处：《Computer Modeling in Engineering & Sciences》2021年第9期1179-1196,共18页工程与科学中的计算机建模（英文）

基　　金：Financial supports for this research were provided by the National Nat-ural Science Foundation of China(Nos.11672057,12002278,U1906233);the National Key R&D Program of China(2017YFC0307201);the Key R&D Program of Shandong Province(2019JZZY010801);the Fundamental Research Funds for the Central Universities(NWPU-G2020KY05308)。

摘　　要：This study investigates structural topology optimization of thermoelastic structures considering two kinds of objectives ofminimumstructural compliance and elastic strain energy with a specified available volume constraint.To explicitly express the configuration evolution in the structural topology optimization under combination of mechanical and thermal load conditions,the moving morphable components(MMC)framework is adopted.Based on the characteristics of the MMC framework,the number of design variables can be reduced substantially.Corresponding optimization formulation in the MMC topology optimization framework and numerical solution procedures are developed for several numerical examples.Different optimization results are obtained with structural compliance and elastic strain energy as objectives,respectively,for thermoelastic problems.The effectiveness of the proposed optimization formulation is validated by the numerical examples.It is revealed that for the optimization design of the thermoelastic structural strength,the objective function with the minimum structural strain energy can achieve a better performance than that from structural compliance design.

关 键 词：Thermoelastic structure topology optimization moving morphable components minimum structural compliance minimum strain energy 

分 类 号：TG1[金属学及工艺—金属学]