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A time-dependent dynamic model for ball passage vibration analysis of recirculation ball screw mechanism

机译：再循环滚珠丝杠机构的球通振动分析时间依赖动态模型

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摘要

Ball passage vibration arising during recirculation of rolling elements is a limitation of high-precision performance associated with ball screw. A relatively deep understanding of this phenomenon when rolling balls leave load area and enter circulation channel has been achieved by now. However, few mechanical models are established for calculation of rolling ball contact deformation and force inside nut while moving by taking into account transient phase at import and export of circulation channel. In this work, we present a general time-dependent dynamic model for description of ball motion and axial periodic micro fluctuation within ball screw subjected to external load. The numerical simulation is employed to deal with equation of motion including segmented restoring force function. Effects of applied load, preload and screw rotational speed on dynamic response are discussed theoretically. Reduced vibration amplitude may be realized by small ball diameter and phase difference between ball groupings. Proposed model is experimentally illustrated.
机译：滚动元件再循环期间产生的球通道振动是与滚珠丝杠相关的高精度性能的限制。当滚动球离开负荷区域时对这种现象的相对深入理解，并通过进入循环通道已经实现。然而，在通过在进口和出口的循环通道进出时，可以建立一些机械模型以计算滚动球接触变形和力。在这项工作中，我们介绍了一种通用时间依赖性动态模型，用于描述滚珠螺杆内的球运动和轴向周期微观波动。使用数值模拟来处理运动方程，包括分段恢复力函数。在理论上讨论了施加载荷，预载荷和螺杆转速对动态响应的影响。减小的振动幅度可以通过小球直径和球分组之间的相位差来实现。提出的模型是通过实验说明的。

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  • 来源
    《Mechanical systems and signal processing》 |2021年第8期|107632.1-107632.30|共30页
  • 作者

    Mengtao Xu; Hongzhuang Zhang; Zhendong Liu; Changyou Li; Yimin Zhang; Yingzi Mu; Chunming Hou;

  • 作者单位

    School of Mechanical Engineering and Automation Northeastern University Shenyang 110819 China;

    School of Mechanical Engineering and Automation Northeastern University Shenyang 110819 China;

    School of Mechanical Engineering and Automation Northeastern University Shenyang 110819 China;

    School of Mechanical Engineering and Automation Northeastern University Shenyang 110819 China;

    Equipment Reliability Institute Shenyang University of Chemical Technology Shenyang 110142 China;

    Shenyang Institute of Technology Shenyang 113122 China;

    Shenyang Institute of Technology Shenyang 113122 China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ball passage vibration; Time-dependent; Ball screw mechanism; Dynamic model;

    机译：球通道振动;与时间相关;滚珠丝杠机构;动态模型;

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