A novel global optimization method of truss topology  

作　　者：WANG Qi LU ZhenZhou TANG ZhangChun 

机构地区：[1]School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China

出　　处：《Science China(Technological Sciences)》2011年第10期2723-2729,共7页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 50875213)

摘　　要：This paper proposes a global topology optimization algorithm based on subset simulation for the singular optimum problem subject to stress constraints of trusses. The constraints are handled by a fitness function which reflects their degree of violation. The rational and global topology results are guaranteed by the judgment of the samples’ rationality and the Metropolis-Hasting algorithm. Three examples show that the established method can quickly reduce the searching region to the feasible region and converge to the global optimum precisely enough for the singular optimum problem.

关 键 词：topology optimization TRUSS subset simulation singular optimum global optimization 

分 类 号：O342[理学—固体力学] TU323.4[理学—力学]