阎军

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:力学与航空航天学院院长、党委副书记

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:力学与航空航天学院

学科:工程力学. 计算力学. 固体力学. 航空航天力学与工程. 船舶与海洋结构物设计制造

办公地点:工程力学系系楼305房间

联系方式:0411-84706832

电子邮箱:yanjun@dlut.edu.cn

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Multi-scale robust design and optimization considering load uncertainties

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论文类型:期刊论文

发表时间:2015-01-01

发表刊物:COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING

收录刊物:SCIE、EI

卷号:283

页面范围:994-1009

ISSN号:0045-7825

关键字:Multi-scale design and optimization; Load uncertainties; Confidence robust optimization formulation

摘要:Uncertainty is ubiquitous in practical engineering design applications. Recent years have witnessed a growing research interest in the study of structural topology optimization problems considering uncertainties. Most of these works, however, are focused on the optimization of macro-scale structures. In the present paper, robust concurrent optimization of material and structure under unknown-but-bounded load uncertainties is investigated in a multi-scale framework. Problem formulation that can allow for the effect of worst-case scenario in a confidence way and the corresponding numerical solution procedure are proposed. It is found that when load uncertainties are considered, optimal material distributions in microstructures tend to be isotropic and Kagome structure seems to be superior to other forms of microstructures. The conclusions drawn from the present work are helpful for manufacturing hierarchical structures with Additive Manufacturing technologies. (C) 2014 Elsevier B.V. All rights reserved.