为探究随动时变风载荷作用下车载导弹武器系统发射时的响应特性,基于动力学原理与有限元方法在ABAQUS中建立了车载导弹武器系统有限元仿真模型,并运用了ABAQUS用户子程序进行联合二次开发以实现随动风载荷的实时加载,分析了在不同风速、不同发动机推力偏心角和不同地面倾角条件下风载荷作用力对导弹姿态的影响规律与发射筒的振动情况。研究结果表明:风载荷不仅对导弹出筒姿态与发射筒振动情况有较大影响,而且会对发动机推力偏心角与地面倾角引起的发射精度偏差产生促进或阻碍作用。

In order to investigate the launch response characteristics of vehicle-mounted missile weapon system under following-up and time-varying wind load, a finite element simulation model of vehicle-mounted missile weapon system was established in ABAQUS based on dynamics principle and finite element method, and the ABAQUS user subroutine was innovatively used for joint secondary development to realize the real-time loading of the following-up wind load. The influence of wind force on missile attitude and the vibration of launcher are analyzed under different wind speed, eccentric thrust angle and ground angle. The results show that the wind load not only has a great influence on the attitude of the missile out of the barrel and the vibration of the launch barrel, but also promotes or hinders the launch accuracy deviation caused by the eccentric thrust Angle and the inclination of the ground.