Effects of profile of contact surfaces on the stress distribution for tenon jointing in blade disk assemblies

WEI Da-sheng; WANG Yan-rong

Chinese

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Effects of profile of contact surfaces on the stress distribution for tenon jointing in blade disk assemblies

更新时间：2026-07-07

- Effects of profile of contact surfaces on the stress distribution for tenon jointing in blade disk assemblies
- Vol. 25, Issue 2, (2010)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院,北京,100191
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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WEI Da-sheng, WANG Yan-rong. Effects of profile of contact surfaces on the stress distribution for tenon jointing in blade disk assemblies[J]. 2010, 25(2).
DOI：

WEI Da-sheng, WANG Yan-rong. Effects of profile of contact surfaces on the stress distribution for tenon jointing in blade disk assemblies[J]. 2010, 25(2). DOI：

摘要

为研究并降低传统榫连结构接触区边缘的高应力梯度

对几种典型接触形式展开了有限元分析

计算结果表明不同接触形式将导致不同的接触应力分布;针对某单齿燕尾形榫连结构

建立了一系列不同网格密度的有限元模型计算分析接触区的应力集中程度

并以此提高接触应力的求解精度;并进一步改进了接触面的几何形式

分析表明二维条件下圆弧/直线的接触形式改善了传统平面/平面接触的应力集中

圆弧/圆弧的接触形式将使接触应力进一步降低.

Abstract

To investigate and improve the high stress gradient near the edges of contact zone in conventional tenon jointing

several typical profiles of contact surface were analyzed by means of finite element method(FEM)

indicating that different contact profiles would lead to different stress distributions.Then

a set of finite element models with different grids for dovetail attachment were established to analyze stress concentration effects

and improve the solving accuracy of contact stress.Different profiles of contact surface were chosen.The numerical solutions show that arc/line contact profile for two-dimensional(2-D) will remove the high stress concentration

and arc/arc one will further depress the contact stress.

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