考虑耳轴-轴承间隙的自行高炮行进间射击炮口响应研究  

Muzzle response of self-propelled antiaircraft gun on the move in consideration of clearance betweentrunnion and bearing

作　　者：谢润[1] 杨国来[1] 徐锐[1] 孙全兆[1] 王鹏[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《振动与冲击》2015年第16期156-160,169,共6页Journal of Vibration and Shock

基　　金：国家“973”计划项目(5131970203)

摘　　要：为研究耳轴-轴承间接触碰撞及间隙对自行高炮行进间射击时炮口响应影响,采用基于Lankarani-Nikravesh接触碰撞理论改进的含间隙旋转铰接触碰撞力数值方法,描述不同间隙的自行高炮耳轴-轴承约束关系。利用谐波叠加法重构符合路面分级标准的不平度,考虑身管柔性建立含耳轴-轴承间隙的刚柔耦合自行高炮发射动力学模型。数值计算获得不同间隙下自行高炮行进间射击炮口动态响应,并与耳轴-轴承理想旋转铰模型对比分析。结果表明,耳轴-轴承间接触碰撞对炮口高低、方向射角影响程度不同,对方向角速度影响最明显;耳轴-轴承间隙与炮口响应并非对应的线性变化关系。In order to study the impact of clearance between trunnion and bearing on the muzzle response of was used to describe the constraint relation between trunnion and bearing with different clearances. The flexibility of barrel was considered and the stochastic road irregularities were created by sinusoid superposition method to establish a rigid- flexible coupling dynamic model of self-propelled antiaircraft gun. According to the numerical calculation, the dynamic muzzle responses of the gun when firing on the move were obtained and compared with those by using the ideal constraint model. The results indicate that the collision between trunnion and bearing has a certain impact on elevation angle and direction angle and the effect on direction angular velocity is most obvious. The results provides a basis for grasping the impact rules of backlash nonlinearity on muzzle responses of self-propelled antiaircraft gun on the move.

关 键 词：自行高炮 行进间射击 间隙 炮口响应 路面谱 

分 类 号：TP206[自动化与计算机技术—检测技术与自动化装置]