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在传统的发射动力学微分方程基础上,添加了CFE(Constraint Force Equation)方法中的约束方程和自由度方程,建立了基于CFE方法的导弹发射动力学模型.以倾斜发射导弹系统为研究对象,定义了1个二自由度约束节点来描述导弹与发射架间的约束关系,通过建模计算得到了发射过程的约束力和约束力矩,最后利用软件ADAMS(Automatic Dynamic Analysis of Mechanical Systems)对该算例进行了计算,取得了一致的结果,从而验证了该方法在导弹发射动力学建模中应用的有效性,扩大了该方法的应用范围.
Based on the traditional differential equations of launching dynamics, the constraint equation and the equation of degree of freedom in the CFE (Constraint Force Equation) method are added to establish the launching dynamics model of the missile based on the CFE method.The inclined launching missile system is taken as the research object, A two-degree-of-freedom constrained node is defined to describe the restraint relationship between the missile and launching frame. The binding and moment of the launching process are obtained through modeling and calculation. Finally, the software ADAMS (Automatic Dynamic Analysis of Mechanical Systems) The results are consistent with the experimental results. The validity of this method in missile launch dynamics modeling is verified and the application of this method is expanded.