某自行火炮行进间射击建模与动态响应研究

为掌握某型轮式自行火炮行进间射击时的关键位置动态响应规律，使用 Fourier逆变换法重构 D级行驶路面，并利用 ADAMS软件自带函数库编写发射动力学所需的复杂函数力，基于多体系统动力学和车辆地面力学，借助三维绘图软件 CREO、多体动力学分析软件 ADAMS、有限元软件 ABAQUS建立该型装备的行走、火力、路面等部分的虚拟样机模型，通过试验验证模型的正确性，进行仿真计算并研究自行火炮2个关键位置的动态响应特征，计算结果可为研究该型装备火控系统精度、行进间射击射弹散布规律和观瞄位置干扰提供参考依据。

Modeling and Dynamic Response of a Self-propelled Gun Firing on the Move

For the purpose of mastering crucial position dynamic response law of a certain type of wheeled self-propelled gun firing on the move,D road is reconstructed based on Fourier inverse trans-formation method and the complex function force of launch dynamics is written by using the function li-brary of ADAMS software. The virtual prototype model of the type of equipment is built in terms of the moving,firing,and road surface based on multi-body system dynamics and vehicle terramechanics, with the aid of the 3D drawing software CREO and multi-body dynamics analysis software ADAMS and finite element software ABAQUS. With the model ’s correctness verified through experiments,the simulation calculation and research are to be conducted of self-propelled gun dynamic response charac-teristics of two crucial positions. The results provide a reference for the study of the fire control system of this type of equipment,projectiles scattered law firing on the move and the sighting position interfe-rence.