离散变量结构拓扑优化设计研究

STUDIES ON OPTIMAL TOPOLOGY DESIGNS OF STRUCTURES WITH DISCRETE VARIABLES

研究了离散变量结构拓扑优化设计的若干问题，讨论了离散型优化模型的合理性，提出截面设计变量的离散程度和全局约束影响最优拓扑，是优化中不可忽略的因素．文中还提出了一种解离散变量桁架、刚架结构拓扑优化的启发式算法．

Some basic problems in optimal topology designs of structures with discrete variables are studied. The relationship between discrete optimization model and optimum topology solution is discussed and an ignored fact that discrete optimum design may be controlled by the discreteness ofsizing variables and global constraints is pointed out. A heuristic algorithm for solving discrete tology optindzation problems of truss and frame structures is proposed in the present paper.