摘要
基于赫兹接触理论和经典的碰撞理论,建立了滚珠丝杠工作过程中滚珠与导珠管接触碰撞的多体动力学模型,该模型充分考虑了碰撞刚度和碰撞阻尼,并考虑滚珠丝杠导珠管的外形,丝杠旋转速度等因素对碰撞力的影响。应用多体动力学软件RecurDyn根据实际物理参数建立了滚珠丝杠循环系统的几何模型,对滚珠在导珠管中的运动情况进行仿真模拟,获得了滚珠在导珠管中运动的速度加速度以及碰撞力的变化过程。理论计算与仿真试验结果基本吻合,这对于进行滚珠丝杠的优化设计以及研究开发新的滚珠丝杠副有重要意义。
Based on the Herts contact-impact theory and the classical collision theory, the multi-body dynamic model of contact-impact between ball and return tube was built. In this model, the factors that have influences on impact force such as the impact stiffness and the impact damp and the geometric sizes of the return tube were considered. The ball screw recirculating model was built by multi-body dynamic software RecurDyn. In the simulation, the data such as the velocity, acceleration and the impact force of the ball were obtained. The results provide valuable reference for ball screw optimized design and the research as well as the development of new type ball screw.
出处
《湖北汽车工业学院学报》
2007年第4期17-21,共5页
Journal of Hubei University Of Automotive Technology
