论文部分内容阅读
以火焰筒浮动瓦块结构为研究对象,将遗传算法和“穷举搜索法”相结合,采用二步递进策略对浮动瓦块进行了热-结构耦合优化分析.首先利用遗传算法对瓦块结构中安装螺栓杆的位置变量进行优化;然后利用“穷举搜索法”对瓦块的厚度和螺栓杆直径进行优化.通过优化分析得到了结构性能更优的瓦块结构方案,使其最大应力比降低了22.77%.结果表明遗传算法和“穷举搜索法”相结合的优化方法应用在浮动瓦块的结构优化设计中是有效、合理的.
In this paper, the floating-tile structure of a flame tube is taken as the research object, the genetic algorithm is combined with “exhaustive search method ”, and a two-step progressive strategy is used to optimize the thermo-structural coupling of the floating tile.Firstly, genetic algorithm Then the position variable of the bolt rod in the tile structure is optimized, and then the thickness and bolt diameter of the tile block are optimized by using “exhaustive search method.” Through the optimization and analysis, the tile structure scheme with better structural performance is obtained, The maximum stress ratio is reduced by 22.77% .The results show that the genetic algorithm and “exhaustive search method ” the combination of optimization methods applied to the structural optimization of floating tile design is effective and reasonable.