Low cycle fretting fatigue tests of dovetail structure at elevated temperature

王楠; 崔海涛; 张宏建

doi:10.13224/j.cnki.jasp.2018.12.022

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Low cycle fretting fatigue tests of dovetail structure at elevated temperature

更新时间：2026-07-07

- Low cycle fretting fatigue tests of dovetail structure at elevated temperature
- Vol. 33, Issue 12, (2018)
- 作者机构：
  
  南京航空航天大学能源与动力学院,南京,210016
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2018.12.022
  CLC：
- Published：2018
- 稿件说明：
移动端阅览
王楠, 崔海涛, 张宏建. 榫连接结构高温低周微动疲劳试验[J]. 航空动力学报, 2018, 33(12). doi: 10.13224/j.cnki.jasp.2018.12.022

王楠, 崔海涛, 张宏建. Low cycle fretting fatigue tests of dovetail structure at elevated temperature[J]. 2018, 33(12).
王楠, 崔海涛, 张宏建. 榫连接结构高温低周微动疲劳试验[J]. 航空动力学报, 2018, 33(12). doi: 10.13224/j.cnki.jasp.2018.12.022 DOI：

王楠, 崔海涛, 张宏建. Low cycle fretting fatigue tests of dovetail structure at elevated temperature[J]. 2018, 33(12). DOI： 10.13224/j.cnki.jasp.2018.12.022.

摘要

针对航空涡扇发动机压气机叶片/轮盘连接结构

设计了一种燕尾榫结构高温微动疲劳试验加载装置

开展了TC11钛合金在200℃及500℃下的微动疲劳试验。通过动态位移及动态应变法实现对燕尾榫微动疲劳萌生寿命的监测。试验中发现微动疲劳裂纹均萌生在燕尾榫接触区域的下边缘

且接触表面存在大量的微动磨屑

属于典型的微动疲劳失效形式。试验结果表明：温度环境对微动疲劳寿命的影响较为明显。随着试验温度的升高

试验件的微动疲劳寿命会逐渐减小。

Abstract

A kind of elevated temperature fretting fatigue test device of dovetail structure was designed for the compressor fan/disk connection structure of aviation turbofan engine. The fretting fatigue tests of TC11 titanium alloy at 200℃ and 500℃ were carried out. The monitoring of the initiation life of dovetail fretting fatigue was achieved by dynamic displacement method and dynamic strain method. It was found that the fretting fatigue cracks were at the lower edge of the contact area of the dovetail and a large amount of abrasive scrap appeared on the contact surface as a typical fretting fatigue failure. The test results show that the effect of temperature environment on fretting fatigue life is obvious. With the increase of the test temperature

fretting fatigue life of the test specimen will gradually decrease.

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Related Author

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Wei XU

Chengqi SUN

Hongjian ZHANG

Ziqiang YU

Baolong CUI

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Related Institution

Beijing Institute of Aeronautical Materials， Aero Engine Corporation of China

Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation， Beijing Institute of Aeronautical Materials， Aero Engine Corporation of China

The State Key Laboratory of Nonlinear Mechanics， Institute of Mechanics，Chinese Academy of Sciences

College of Energy and Power Engineering，Nanjing University of Aeronautics and Astronautics

南京航空航天大学能源与动力学院工信部航空发动机热环境与热结构重点实验室

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