鱼雷外形低阻、低噪和高机动性的多学科优化设计方法

为了解决鱼雷外形低阻、低噪和高机动性综合优化设计问题，基于MDO理论，利用两级综合优化算法和并行子空间优化算法，提出了一种适用于鱼雷外形综合优化设计的多学科优化算法，建立了系统级优化模型，利用二次响应面近似技术，解决了学科级与系统级之间的耦合问题。最后，通过实际算例，对多学科分析与优化方法及模型的有效性进行了验证，获得了一种综合性能较优的方案。

The Torpedo Shape Multidisciplinary Design Optimization Methods for Low-drag, Low-noise and High-maneuverability

For solving the torpedo shape optimization design problem in low-drag,low-noise and high-maneuverability,based on MDO theory,using the algorithms of bi-level integrated system synthesis(BLISS) and concurrent subspace optimization(CSSO),a multidisciplinary optimization algorithm for solving the torpedo shape integrated optimization design is represented in this paper.The system level optimization model is established,the coupling problem between system and discipline level are solved by using quadratic response surface method.Finally,the effectiveness of analysis and optimization methods,models and calculation programs are verified through the examples,a better project in comprehensive performance was obtained.