摘要
为了评估防御战车行进间发射的可靠性,运用动力学虚拟样机建模与仿真技术对战车行进间发射进行了研究。依据战车三维实体模型,基于多体动力学软件建立了战车的多体功能型虚拟样机模型。应用实测的载荷-位移曲线建立了非线性油气悬挂模型,应用非线性并联弹簧阻尼模型模拟了箱弹间的接触力,基于路面功率谱密度函数,应用Sayers理论建立了三维随机路面谱模型。对防御战车进行了较全面的动力学虚拟仿真试验,获得了战车行进间发射火炮与导弹的动力学特性。仿真结果表明,在满足相应路况和车速条件下,战车满足行进间发射任务的要求。仿真结果与发射分离试验结果基本一致,仿真分析有效指导了防御战车设计,确保了分离试验一次成功。
In order to evaluate the marching launch reliability of defense combat vehicle,dynamic virtual prototype modeling and simulation technologies are used to study the marching launch.According to the three-dimensional solid model of the combat vehicle,the multi-body dynamics software is adopted to establish the multi-body functional virtual prototype model.The measured load-displacement curve is used to establish a non-linear oleo-pneumatic suspension model.The contact force between launching box and missiles is simulated by using the non-linear parallel spring damping model.Based on the pavement power spectral density function,a three-dimensional random pavement spectral model is established by using the Sayers theory.The comprehensive dynamic virtual simulation tests were carried out for the defense combat vehicle,and the dynamic characteristics of guns and missiles were obtained during marching launch.The simulation results show that the combat vehicle meets the launching march requirements under the corresponding road conditions and vehicle speed.The simulation results are basically consistent with the results of launching separation test.The simulation analysis effectively guides the design of defense combat vehicle and ensures the success of the launching separation test.
作者
尚宇晴
付丽强
刘广
涂静
吴烁
SHANG Yuqing;FU Liqiang;LIU Guang;TU Jing;WU Shuo(Shanghai Electro-Mechanical Engineering Institute,Shanghai 201109,China)
出处
《空天防御》
2021年第2期74-81,共8页
Air & Space Defense
关键词
防御战车
虚拟样机
行进间发射
动力学特性
defense combat vehicle
virtual prototype
marching launch
dynamic characteristics
