基于不确定性的内外弹道联合优化方法

An Optimum Method for Internal and External Ballistic Design Based on Uncertainty

针对飞行器内外弹道设计分离,且设计余量保守,难以获得最优方案的问题,给出一种基于不确定性的内外弹道联合优化设计方法。建立面向联合优化的固体动力模型,将"有偏差无余量"的不确定性优化方法应用于设计过程,给出优化三要素,开发了基于iSIGHT的内外弹道联合优化软件。数值仿真表明,在起飞质量、射程等约束条件不变的情况下,该方法可有效提高飞行器的运载能力。

It is difficult to obtain the optimal solution because of the separation of internal and external ballistic design and conservative margin.An optimum method based uncertainty for internal and external ballistic design is present.Firstly,the uncertainty model of the solid engine is established,then uncertainty-based optimum methodology based ＂deviation allowance,margin free＂is used to design ballistic.Three elements of optimization are given.A sort of software based on iSIGHT is developed.At last,an example is given to illustrate the application.With the constant of weight,range,the effectiveness of the method is effective.