BOLT COUPLING STRUCTURE OF CONTACT STRESS AND THE INFLUENCE FACTORS OF JOINT STIFFNESS

YANG Hui; HAN Jiang; CHU XiangQian

doi:10.16579/j.issn.1001.9669.2015.01.022

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BOLT COUPLING STRUCTURE OF CONTACT STRESS AND THE INFLUENCE FACTORS OF JOINT STIFFNESS

更新时间：2022-09-22

- BOLT COUPLING STRUCTURE OF CONTACT STRESS AND THE INFLUENCE FACTORS OF JOINT STIFFNESS
- Journal of Mechanical Strength Vol. 37, Issue 1, Pages: 128-132(2015)
- 作者机构：
  
  1. 阜阳职业技术学院工程科技学院
  2. 合肥工业大学CIMS研究所
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2015.01.022
  CLC：
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YANG Hui, HAN Jiang, CHU XiangQian. BOLT COUPLING STRUCTURE OF CONTACT STRESS AND THE INFLUENCE FACTORS OF JOINT STIFFNESS. [J]. 37(1):128-132(2015)
DOI：

YANG Hui, HAN Jiang, CHU XiangQian. BOLT COUPLING STRUCTURE OF CONTACT STRESS AND THE INFLUENCE FACTORS OF JOINT STIFFNESS. [J]. 37(1):128-132(2015) DOI： 10.16579/j.issn.1001.9669.2015.01.022.

摘要

在考虑板与板以及螺栓与板间非线性接触、摩擦和螺栓预紧力等影响因素基础上,构建螺栓联接结构的三维有限元分析模型。基于被联接件压应力呈圆锥体分布假设,推导出接触应力分布三次数学表达式,计算结果与有限元数值模拟结果相比最大偏差为9.2%;基于有限元计算,分析不同被联接件厚度、不同螺孔间隙以及不同螺母直径对结合面刚度影响规律,获得结合面刚度计算经验公式,与有限元分析结果相比,公式计算最大偏差为5.24%。

Abstract

Considering the nonlinear factors,the contact and friction between plates as well as bolt and plates,bolt preload,etc,three-dimensional finite element model bolted structure was developed. Three mathematical expressions of contact stress was deduced,which was based on the assumption that stress distribution in a circular cone. Compared with the finite element analysis,the corresponding deviation is within 9. 2%; Based on finite element computation,The influence to contact stress between connected components was analyzed with different thickness of the connected component,the clearance of the bolt hole and the diameter of nut. the experience formula of the connection stiffness was got,compared with the finite element analysis,the deviation of obtained member stiffness less than 5. 24%.

关键词

螺栓联接螺栓预紧力接触应力结合面刚度

Keywords

Bolt connectionPreloadContact stressConnection stiffness

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