The paper presents a topology optimization of steel structure about a waste incinerator steam generator to get economical structural layout. Firstly, the load function is got by analyzing the load distribution of a top girder about a certain type of waste incinerator steam generator. According to the theory of structural mechanics, the axial load function of steel frame is proposed. Secondly, the reasonable section class for members are selected and the functional relationship in the steel amount for steel frame with several variables is established. But it is difficult to solve them by ordinary analytic method due to these variables are interrelated. Therefore, intelligent bionics algorithm such as DE-differential evolution algorithm and PSO-particle swarm optimization are employed, the two algorithms are compared in the experiment. The simulation results show that the intelligent bionic algorithm can effectively deal with the optimization problems of steel structure.

论文对垃圾焚烧炉蒸汽发生器钢结构进行拓扑优化，以获得经济的结构布局。首先，通过分析某型垃圾焚烧炉蒸汽发生器上梁的负荷分布，得到负荷函数。根据结构力学理论，提出了钢框架的轴向载荷函数。其次，选择合理的杆件截面等级，建立钢框架用钢量与多个变量的函数关系。但由于这些变量是相互关联的，用普通的解析方法很难解决。因此，采用DE-差分进化算法和PSO-粒子群优化等智能仿生算法，在实验中对两种算法进行了比较。