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冲压发动机导弹弹道设计优化与固体火箭发动机导弹弹道优化不同,主要体现在其弹道与冲压发动机推力的强藕合性上。多目标遗传算法是多目标优化的强有力工具,它可以有效的找到Pareto前端,设计人员可以从中选择满意的最佳方案。建立了带冲压发动机导弹优化需要的数学模型,并采用改进的非劣分类遗传算法(Nondominated Sorting Genetic Algorithm II,NSGA-II)对冲压发动机导弹弹道进行多目标优化,结果表明弹道与冲压发动机推力进行一体化优化可以显著的提高弹道性能。
Stamping engine missile trajectory design optimization and solid rocket engine missile trajectory optimization is different, mainly reflected in its ballistic and ramjet thrust on the strong coupling. Multi-objective genetic algorithm is a powerful tool for multi-objective optimization, it can effectively find the Pareto front-end, designers can choose from the best solution. The mathematic model of missile engine with ramjet engine was established. The multi-objective optimization of the missile trajectory of ramjet engine was implemented with the improved Nondominated Sorting Genetic Algorithm II (NSGA-II). The results showed that the thrust of ballistic and ramjet engine Integrated optimization can significantly improve ballistic performance.