A Discrete Size Optimization Method for Frame Structures

摘要：

This paper proposed a discrete size optimization method for frame structures. The method regards all the cross-section geometry parameters of structures as design variables. A key design variable is defined and interpolated. Bound constraints of other variables are introduced as functions of the key variable. Thus the discrete optimization problem is transformed into a continuous one which can be solved by any continuous-based optimization techniques. Example of frame structure shows that by employing the proposed transforming procedure, correct solutions can be achieved, while continuous-based SQP method cannot obtain correct solution.

关键词： structure design size optimization discrete design variable frame structure

作者: X.H. Liu Y.T. Lu

作者单位: Department of Mechanics, Huazhong University of Science and Technology,Wuhan 430074, PR. China School of Engineering, Cardiff University, Cardiff, CF24 3AA, United Kingdom

会议类型: 国际会议

会议名称: The First World Congress on Global Optimization in Engineering & Science(第一届工程与科学全局优化国际会议 WCGO2009)

会议地点: 长沙

会议语种:英文

页码: 822-827

在线出版日期: 2009-06-01（万方平台首次上网日期，不代表论文的发表时间）