摘要
为研究火炮方向机缓冲自锁过程的运动规律和动力学特性,分析了缓冲摩擦装置的结构及作用机理,确立了其主要力学模型和计算方法。在此基础上,利用ADAMS多体动力学分析软件建立了缓冲摩擦装置虚拟样机,考虑冲击外力、传动间隙、碟形弹簧刚度、阻尼及预压力等因素,仿真得出支撑垫圈和碟形弹簧的振动响应曲线,与部件实际运动规律相吻合。重点考虑传动间隙对缓冲摩擦装置的影响,仿真结果表明,后螺筒和长螺帽的调整间隙只有控制在一定范围内,缓冲摩擦装置才能充分发挥其效能。
In order to study the action rule of cushion and locking process for traversing mechanism of artillery,the structure and movement characteristic of cushion and friction device are analyzed,and the main dynamic model and the computation methods are established.On the basis of preceding work,the virtual prototype of cushion and friction device is set up by ADAMS software.Regarding complex factors such as impact force,transmission clearance,stiffness,damping and preload of disk springs,the vibration response curve of disk spring and backup washer is obtained by simulation calculation,which results accord with the actual device motion law.As for the effect of transmission clearance on cushion and friction device,the simulation experiments show that,only as the clearance of back spiral tube and long nut is controlled within a certain range,can cushion and friction device work normally and adequately.
出处
《机械设计与制造》
北大核心
2012年第7期233-235,共3页
Machinery Design & Manufacture
基金
国家自然科学基金(50645019)
关键词
方向机
缓冲装置
摩擦装置
虚拟样机
动力学分析
Traversing Mechanism
Cushion Device
Friction Device
Virtual Prototype
Dynamics Analysis
