面向分级设计优化的飞行器参数化建模方法

针对飞行器气动隐身外形综合设计优化问题,提出合适的面向分级设计优化流程,建立适应该流程的渐进分层参数化建模方法;用基于敏度分析的参数影响程度分析方法筛选复杂设计变量;采用多学科设计优化（Multidisplinary Design Optimization,MDO）理论和差分进化算法进行飞行器气动隐身外形的综合设计优化.将该方法用于某飞行器外形设计优化,结果表明：该方法合理可行,可为飞行器外形多学科设计优化提供一定参考.

Gradual design optimization oriented aircraft parametrization modeling method

As to the integrated aerodynamic stealth design optimization for aircraft shape, a gradual design optimization oriented design flow is proposed, for which a progression and hierarchy parametrization modeling method is implemented, the complex design variables are filtered by analyzing the impact level on parameters based on sensitivity analysis, and the integrated design optimization on aerodynamic stealth shape of aircraft is performed by Multidisciplinary Design Optimization(MDO) theory and differential evolution algorithm. The method is used for the design optimization of an aircraft shape, and the results indicate that the methods are feasible and can provide references for the multidisciplinary design optimization of aircraft shape.