基于FIPER的导弹多学科优化设计

Multidisciplinary Design Optimization of Missile Based on FIPER Software

导弹的多学科优化设计是一个复杂的系统工程。整个优化设计过程也涉及到多个学科,而且学科之间存在着严重的耦合关系,简单的对独立的学科计算程序进行集成将会消耗大量的设计时间而且容易出现错误。利用先进的计算机网络技术结合较为成熟的多学科优化设计商业软件,应用多岛遗传算法对某型导弹建立了气动、发动机、飞行弹道三个学科的数学模型,分析了学科模型之间存在的耦合关系,进行了多学科优化设计研究,使导弹的总体性能得到了改进。

Multidisciplinary design optimization of missile is a complicated systems engineering. Many of disciplines are involved in the whole optimization process, but also between the subjects there are serious coupled interactions. The simple integration of the independent disciplinary procedures will consume a large amount of design time and is prone to error. This paper adopts advanced computer network technology combined with a more mature multi - disciplinary design optimization business software, and uses multi - island genetic algorithm to establish models of three disciplines, namely the aerodynamic, engine and flight trajectory model, for a certain type of missile, and analy- zes the coupled interactions between the discipline models, The muhidisciplinary research optimizes the design so that the missile＇s overall performance has been improved.