Connected morphable components-based multiscale topology optimization

作     者：Jiadong DENG Claus B.W.PEDERSEN Wei CHEN 

作者机构：Department of Mechanical EngineeringNorthwestern UniversityEvanstonIL 60208USA Dassault Systemes Deutschland GmbH200095 HamburgGermany 

出 版 物：《Frontiers of Mechanical Engineering》 (机械工程前沿（英文版）)

年 卷 期：2019年第14卷第2期

页      面：129-140页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Northwestern University, NU, (15-07-07) Digital Manufacturing and Design Innovation Institute, DMDII 

主　　题：multiscale topology optimization morphable component material microstructure homogenization 

摘      要：The advances of manufacturing techniques,such as additive manufacturing,have provided unprece-dented opportunities for producing multiscale structures with intricate latticed/cellular material microstructures to meet the increasing demands for parts with customized ***,there are still difficulties for the state-of-the-art multiscale topology optimization(TO)methods to achieve manufacturable multiscale designs with cellular materials,partially due to the disconnectivity issue when tiling material *** paper attempts to address the disconnectivity issue by extending component-based TO methodology to multiscale structural *** effective linkage scheme to guarantee smooth transitions between neighboring material microstructures(unit cells)is devised and *** with the advantages of components-based TO,the number of design variables is greatly reduced in multiscale TO *** is employed to calculate the effective material properties of the porous materials and to correlate the macro/structural scale with the micro/material *** of the objective function with respect to the geometrical parameters of each component in each material microstructure have been derived using the adjoint *** examples demonstrate that multiscale structures with well-connected material microstructures or graded/layered material microstructures are realized.