基于参数化方法的圆碟形水下滑翔机结构轻量化设计

圆碟形水下滑翔机结构质量大小对其性能影响较大。为提高圆碟形水下滑翔机结构分析效率,在圆碟形水下滑翔机耐压壳结构分析的基础上,对圆碟形耐压壳结构进行参数化设计及优化研究。运用ANSYS参数化设计语言APDL对圆碟形耐压壳进行参数化建模与分析,采用零阶与一阶相结合的优化方法,对圆碟形水下滑翔机耐压壳结构进行轻量化设计。结果表明,参数化分析方法有效地提高了分析效率,优化后所得最优解与初始值相比,质量减轻了29.4%,圆碟形水下耐压壳轻量化效果明显。

The Lightweight Design for the Structure of Round Dish-Shaped Underwater Glider Based on Parameterization Method

The size of the round dish-shaped underwater glider’s structural mass has a great influence on its performance.To improve the structure analysis efficiency of round dish-shaped underwater glider,the parametric design and optimization of the round dish-shaped pressure shell are studied.On the base of the structure analysis of shell structure,parametric modeling and analysis of round dish-shaped pressure shell is done,using ANSYS parametric design language APDL.Zero-order and first-order optimization method are used for pressure shell’s lightweight design.The results show that,parameterized analysis method can effectively improve the efficiency of analysis,and the quality of the optimized solution is reduced by 29.4%after the optimization,compared with the initial value.The lightweight effect of the dish-shaped underwater pressure shell is obvious.