Analysis and Optimi-ation of Motion Accuracy of Hydrostatic Spindle Under Influence of Dynamic Parameters<br />

doi:10.7652/xjtuxb202006012

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Analysis and Optimi-ation of Motion Accuracy of Hydrostatic Spindle Under Influence of Dynamic Parameters

更新时间：2025-07-09

- Analysis and Optimi-ation of Motion Accuracy of Hydrostatic Spindle Under Influence of Dynamic Parameters
- Vol. 54, Issue 6, Pages: 90-98(2020)
- 作者机构：
  
  北京工业大学机械工业重型机床数字化设计与测试技术重点实验室,北京,100124
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202006012
  CLC： TG156
- Online First：10 June 2020，
  
  Published：2020
- 稿件说明：
移动端阅览
Analysis and Optimi-ation of Motion Accuracy of Hydrostatic Spindle Under Influence of Dynamic Parameters
[J]. 2020, 54(6): 90-98. DOI: 10.7652/xjtuxb202006012.
DOI：

Analysis and Optimi-ation of Motion Accuracy of Hydrostatic Spindle Under Influence of Dynamic Parameters
[J]. 2020, 54(6): 90-98. DOI: 10.7652/xjtuxb202006012. DOI：

摘要

针对现有液体静压主轴运动误差分析及优化的不足

基于液体静压主轴的结构参数

建立了主轴运动误差的动力学模型

定量分析了在不平衡质量作用下主轴转子不同转速下的动态参数变化规律。以主轴运动误差数学模型作为目标函数

以主轴系统参数作为设计变量

采用遗传算法对液体静压主轴系统的运动误差进行优化分析。单一因素优化分析时

主轴系统径向误差运动x、y、主轴倾角θ的优化效率分别为41.22%、25.21%、66.16%

多目标优化时效率为4.7%。优化后的主轴运动精度都有了显著的提高

并得到了提高液体静压主轴运动精度的结构参数组合。

Abstract

In view of lack of analysis and optimi-ation of existing hydrostatic spindle motion errors

a dynamic model of the spindle motion error is constructed based on structural parameters

and the laws of dynamic parameters of the spindle rotor at different rotational speeds with an unbalanced mass are quantitatively analy-ed. The mathematical model of the spindle motion error is taken as the objective function

and the spindle system parameters are used as design variables. Genetic algorithm is adopted to optimi-e the motion error of the hydrostatic spindle system. In the single-factor optimi-ation analysis

the optimi-ation efficiency for the radial error motions x and y of the spindle system and the spindle inclination angle - reaches 41.22%

25.21% and 66.16%

respectively

and the efficiency gets 4.7% during multi-objective optimi-ation. The optimi-ed spindle motion accuracy is significantly improved

and a combination of structural parameters is obtained to heighten the hydraulic stat

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