Iterative Method to Solve Bearing's Force and Stiffness for a Multi-Support Spindle System Based on Finite Element Analysis

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Iterative Method to Solve Bearing's Force and Stiffness for a Multi-Support Spindle System Based on Finite Element Analysis

更新时间：2025-07-09

- Iterative Method to Solve Bearing's Force and Stiffness for a Multi-Support Spindle System Based on Finite Element Analysis
- Vol. 44, Issue 11, Pages: 41-45(2010)
- 作者机构：
  
  1. 中国工程物理研究院总体工程研究所,四川,绵阳,621900
  2. 西安交通大学机械制造系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH123
- Online First：10 November 2010，
  
  Published：2010
- 稿件说明：
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Iterative Method to Solve Bearing's Force and Stiffness for a Multi-Support Spindle System Based on Finite Element Analysis[J]. 2010, 44(11): 41-45.
DOI：

Iterative Method to Solve Bearing's Force and Stiffness for a Multi-Support Spindle System Based on Finite Element Analysis[J]. 2010, 44(11): 41-45. DOI：

摘要

为了准确计算多支承轴系中每一个轴承的受力与刚度

分析预紧力对轴承刚度的影响

提出了一种基于有限元分析的迭代计算方法.该方法考虑了主轴受载后轴承受力与刚度的相互影响关系

在轴系和单轴承的有限元模型中利用受力-变形-刚度关系式进行迭代求解

以此寻找轴承受载后的平衡状态.通过与典型数值计算结果的比较可以看出

所提方法解算出了每一个轴承的受力和刚度

解决了多支承轴系的超静定问题和支承-轴承受力分配问题.通过轴承受载变形实验同时验证了方法的正确性.

Abstract

An iterative method based on finite element analysis(FEA)was presented to compute each bearing's force and stiffness and analyze the effect of preload on bearing's stiffness for a multi-support spindle system. The interaction relation of bearing's force and stiffness after the loading of the main spindle is considered in the present method. The force-deformation-stiffness correlation is adopted to search for the bearing's balance state in the FEA model of the spindle system and single bearing. The comparison with typical numerical results shows that this method can calculate correctly the force and stiffness of each bearing and solve the hyperstatic problem and force distribution of the support-bearing for a multi-support spindle system. In addition

the feasibility of this method was confirmed by our experiments on bearing deformation under external load.

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references

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