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弹道学报  2014 

鸭式布局双旋弹飞行动力学建模与仿真

Keywords: 飞行动力学,双旋弹,鸭舵,弹道模型,弹道仿真

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Abstract:

为发展具有精确打击能力的有控旋转稳定弹,研究了一类采用双旋结构的鸭式布局旋转稳定弹。分析了该类有控弹的飞行原理,补充了其飞行动力学建模所需的坐标系;根据牛顿第二定律和动量矩定理,建立了七自由度刚体质心运动方程和绕质心运动方程;讨论了作用在弹体上的诸力和力矩。编制计算程序对鸭式布局双旋弹的弹道特性进行了仿真分析,揭示了无控条件下双旋弹前、后体的转速和全弹攻角、偏流的变化规律,得到了控制力和控制力矩作用下双旋弹体的攻角响应。仿真结果与其飞行原理吻合,符合外弹道规律,验证了所建模型的合理性,为后续研究该类有控旋转弹提供了理论基础。

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