基于刚柔耦合的导弹发射动力学仿真技术研究

Simulation technology of missile launch dynamics based on rigid-flexible coupling

防空导弹发射初始扰动是弹道设计、指挥控制设计和飞行控制设计的重要初始数据。针对某近程防空武器在导弹发射过程中的初始扰动特性参数变化规律难以有效获取的难题,采用三维建模与动力学仿真等手段相结合,建立了该武器系统发射动力学模型,并充分考虑了影响导弹发射初始扰动的主要因素。在此基础上,通过仿真数据与飞行试验数据对比,验证了模型的有效性,同时仿真结果可为该发射系统的疲劳寿命分析和发射初始指向精度研究提供参考。

Launch initial disturbance is an important initial data for ballistic design,command and control design and flight control design.Aiming at the problem that it was difficult to effectively obtain the variation rule of the initial disturbance characteristic parameters of a short-range air defense weapon in the process of missile launching,the launch dynamic model of the weapon system was established by combining three-dimensional modeling with dynamic simulation,and the main factors influencing the initial disturbance were fully considered.On this basis,the validity of the model was verified by comparing the simulation data with the test data.The simulation results can provide reference for the fatigue life analysis of the launch system and the study of the initial pointing accuracy of the launch.