Topology Optimization Considering Stress and Reliability Constraints

摘要：

In the past two decades, many researches have been carried out to study the structural topology optimization. Most of them focused on minimizing the mean compliance of structures under material volume constraint, but stress constraints are seldom considered in the problem formulations. So, the optimum structure may be not safe because the material failure criterion is not checked during optimization process. Even if stress constraints are considered, the optimum structure still could fail with high probability because the applied forces, material properties and many other design parameters could be random factors in reality. Hence, both stress constraints and random parameters should be considered to design an optimized structure with high reliability. This paper presents a procedure to implement Reliability-based based Topology Optimization (RBTO) considering stress constraints. Numerical examples show the impacts of stress constraint and random factors on the final topology of optimum structure.

关键词： topology optimization reliability stress constraints

作者: Bin ZHENG Xiao-Jun WANG Tao MA Hong-Zhong HUANG Huanwei XU

作者单位: School of Mechatronics Engineering University of Electronic Science and Technology of China Chengdu, China

会议类型: 国际会议

会议名称: 2011 International Conference on Quality,Reliability,Risk,Maintenance,and Safety Engineering(2011年质量、可靠性、风险、维修性与安全性国际会议暨第二届维修工程国际学术会议 ICQR2MSE 2011)

会议地点: 西安

会议语种:英文

页码: 933-938

在线出版日期: 2011-06-17（万方平台首次上网日期，不代表论文的发表时间）