【摘要】 为研究采用前冲击发原理的某型车载迫击炮射击时的动力学特性,根据前冲击发武器的工作原理和特点,综合运用ADAMS中的函数以及传感器功能,在模型中实现了前冲击发时炮膛合力的施加。基于多体系统动力学和车辆地面动力学,建立了考虑车辆悬挂系统以及轮胎-路面特性的车载迫击炮虚拟样机模型。通过仿真结果与实验数据的比较,验证了模型的准确性。在模型的基础上,对车载迫击炮炮口位置的动态响应受轮胎刚度、悬挂系统参数的影响规律进行分析。结果表明,轮胎刚度越小,炮口振动的幅值越大;适当减小底盘悬挂系统刚度,提高阻尼系数,可以加快击发后炮口的复位速度。计算结果可以为研究该型装备的发射动力学特性和射击稳定性提供参考依据,对相关车载武器设计研究有一定参考意义。其炮膛合力的施加方法具有通用性,对于采用前冲击发的武器均适用。更多还原

【Abstract】 In order to study the dynamic characteristics of a certain type of vehicle mortars using the front impact principle,according to the working principle and characteristics of the front impact weapon,the function of the ADAMS and the function of the sensor were used synthetically,and the resultant force of the gun chamber was applied in the model.Based on the dynamics of multi-body system and vehicle ground dynamics,a virtual prototype model of vehicle mortars considering vehicle suspension system and tire pavement characteristics was established.The accuracy of the model was verified by comparing the simulation results with the experimental data.On the basis of the model,the dynamic response of vehicle mortars muzzle position was analyzed with the influence of tire stiffness and suspension system parameters.The results show that the smaller the tire stiffness is,the larger the amplitude of the muzzle vibration is.The proper reduction of the stiffness of the suspension system and the increase of the damping coefficient can speed up the reposition speed of the muzzle after the firing.The calculation results can provide reference for the study of the launching dynamic characteristics and shooting stability of the equipment,and it has some reference significance for the design and research of related vehicle weapons.更多还原