导弹发射系统建模与动力学分析

摘要

将导弹发射系统从导弹车、发射架、导弹刚柔耦合多体系统的角度,进行刚柔多体系统动力学仿真分析.应用多体系统传递矩阵法,建立了导弹发射刚柔耦合多体系统动力学模型,实现了对复杂多体系统振动特性的计算,构造了导弹发射系统增广特征矢量并给出正交性条件,实现了对该系统动力学响应的数值分析.该方法无需建立系统总体动力学方程,建模灵活、计算速度快,利于求解分析复杂多体系统结构,为导弹发射系统的改进设计提供了重要的理论依据.%Based on the component of the missile launching system the vehicle, launcher and missile, the numerical computation of multi-rigid-flexible-body system of missile launching system has been obtained by transfer matrix method of multibody system. The dynamical model of multi-rigid-flexible-body system of missile launching system has been developed. The orthogonality of eigenvectors of this hybrid multibody system is derived, the natural frequencies are computed, and numerical analysis of dynamics response is presented. The proposed method without developing the global dynamic equations, modeling flexibility, higher computational speed etc, and these advantages of the proposed method are more convenient for the computation and analysis of complex multibody system, and this method provides the important theoretical foundation for improvement design and engineering of the missile launching system.