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
Multi-objective concurrent topology optimization of thermoelastic structures composed of homogeneous porous material
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论文类型:期刊论文
发表时间:2013-04-01
发表刊物:6th China-Japan-Korea Joint Symposium on Optimization of Structural and Mechanical Systems
收录刊物:SCIE、EI、CPCI-S、Scopus
卷号:47
期号:4
页面范围:583-597
ISSN号:1615-147X
关键字:Concurrent optimization; Multi-objective optimization; Porous material; Homogenization; Thermoelastic structure
摘要:The present paper studies multi-objective design of lightweight thermoelastic structure composed of homogeneous porous material. The concurrent optimization model is applied to design the topologies of light weight structures and of the material microstructure. The multi-objective optimization formulation attempts to find minimum structural compliance under only mechanical loads and minimum thermal expansion of the surfaces we are interested in under only thermo loads. The proposed optimization model is applied to a sandwich elliptically curved shell structure, an axisymmetric structure and a 3D structure. The advantage of the concurrent optimization model to single scale topology optimization model in improving the multi-objective performances of the thermoelastic structures is investigated. The influences of available material volume fraction and weighting coefficients are also discussed. Numerical examples demonstrate that the porous material is conducive to enhance the multi-objective performance of the thermoelastic structures in some cases, especially when lightweight structure is emphasized. An "optimal" material volume fraction is observed in some numerical examples.