Finite Element Analysis for Sliding Characteristics Between Two Parabolic Columns

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Finite Element Analysis for Sliding Characteristics Between Two Parabolic Columns

更新时间：2025-07-09

- Finite Element Analysis for Sliding Characteristics Between Two Parabolic Columns
- Vol. 46, Issue 11, Pages: 75-79(2012)
- 作者机构：
  
  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 2012，
  
  Published：2012
- 稿件说明：
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Finite Element Analysis for Sliding Characteristics Between Two Parabolic Columns[J]. 2012, 46(11): 75-79.
DOI：

Finite Element Analysis for Sliding Characteristics Between Two Parabolic Columns[J]. 2012, 46(11): 75-79. DOI：

摘要

为了更准确地描述结合面上微观形貌及其切向滑移特性

构建了一种具有抛物形横截面的柱体滑移有限元模型.该模型采用平面应变单元

综合考虑了材料的弹塑性变形特征

分析了整个切向滑移过程中切向合力、法向合力、接触面积以及残余位移随切向位移、法向距离、屈服强度等参数的变化规律

并给出了经验公式.分析结果表明:塑性流动越大

载荷沿滑移方向的漂移越明显

抛物柱的残余位移也越大; 当2个抛物柱的材料特性相同时

变形越大载荷的漂移量也越大; 当2个抛物柱之间的接触变形相同时

模型屈服强度越小则塑性流动越显著.构建的模型为有纹理结合面切向滑移特性的研究奠定了理论基础.

Abstract

To accurately describe the micro topography and the sliding characteristics of rough surfaces

a finite element model is used to simulate sliding between two interfering elasto-plastic columns with parabolic cross-section. 2D elasto-plastic plane strain elements are considered

and it is revealed the reaction forces

residual deformations and contact length how to vary with the yield strength

sliding distance and interference between the columns. The stronger the plastic flow

the more obvious the load drifts along slip direction and residual deformation get. In the case of same material

the larger the deformation

the greater the load drifts

but in the case of equal deformation

smaller yield strength often leads to a more significant plastic flow. The variation of the contact load and contact area are also investigated at the single asperity level.

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Keywords

references

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刘海涛,赵万华.基于结合面的机床摄动分析及优化设计.2010,44(1):96-99.

尤晋闽,陈天宁.结合面法向动态参数的分形模型.2009,43(9):91-94.

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