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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 工业装备结构分析优化与CAE软件全国重点实验室主任、结构优化理论与应用国际联合研究中心主任
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. 结构工程. 车辆工程
办公地点：力学楼302
联系方式：0411-84707267 ligang@dlut.edu.cn
电子邮箱：ligang@dlut.edu.cn
Surrogate-based optimization of stiffened shells including load-carrying capacity and imperfection sensitivity
点击次数：
论文类型：期刊论文
发表时间：2013-11-01
发表刊物：THIN-WALLED STRUCTURES
收录刊物：SCIE、EI、Scopus
卷号：72
页面范围：164-174
ISSN号：0263-8231
关键字：Stiffened shell; Load-carrying capacity; Imperfection sensitivity; Hyperbolic generatrix shape; Surrogate-based optimization
摘要：Stiffened shells are very sensitive to initial imperfections, especially for geometrical imperfections. In this study, based on a 3-m-diameter orthogrid stiffened shell, post-buckling and imperfection sensitivity analyses are performed by use of explicit dynamic method. Result indicates that stiffened shell with outward hyperbolic generatrix shape shows a lower imperfection sensitivity as compared to the cylindrical one. Then, a framework of surrogate-based optimization including load-carrying capacity and imperfection sensitivity for stiffened shells is introduced, and the illustrative example demonstrates that the proposed framework has the potential to provide robust optimum design for realistic stiffened shells. (C) 2013 Elsevier Ltd. All rights reserved.