Finite element analysis and application of friction damper tangential contact stiffness

SHI Ya-jie; ZHU Zi-gen

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Finite element analysis and application of friction damper tangential contact stiffness

更新时间：2026-07-07

- Finite element analysis and application of friction damper tangential contact stiffness
- Vol. 24, Issue 6, (2009)
- 作者机构：
  
  1. 中国民用航空总局航空安全技术中心航空安全研究所,北京,100028
  2. 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：2009
- 稿件说明：
移动端阅览
SHI Ya-jie, ZHU Zi-gen. Finite element analysis and application of friction damper tangential contact stiffness[J]. 2009, 24(6).
DOI：

SHI Ya-jie, ZHU Zi-gen. Finite element analysis and application of friction damper tangential contact stiffness[J]. 2009, 24(6). DOI：

摘要

提出了一种利用有限单元法求解干摩擦阻尼器接触刚度的方法.利用该方法研究了接触面初始正压力、摩擦系数、阻尼器材料属性和阻尼器接触面半径等对接触刚度的影响规律

发现接触刚度随着这些参数的增大而变大.并通过曲线拟合得到了一定条件下接触刚度随接触面正压力变化的函数关系

为求解带阻尼器叶片非线性响应时实时准确考虑接触刚度随正压力的变化提供了方便.最后

利用所得刚度函数研究了接触刚度对带凸肩叶片非线性振动响应的影响

结果表明:随着接触刚度的增加

叶片峰值频率逐渐升高

振动峰值逐渐减小

且各自都逐渐趋于一个定值.

Abstract

A convenient method was developed to estimate the tangential contact stiffness between dry friction dampers using the general finite element method(FEM) software.The influences of various parameters such as normal preload

friction coefficient

damper material properties and the radius of the cylinder damper etc on the contact stiffness were investigated in detail.The results show that

the contact stiffness improves with increase in these parameters.A formula of calculating the tangential contact stiffness for variable normal preload was obtained by fitting the results

making it more conveniently to take into account the variety of contact stiffness in calculating the nonlinear response of shrouded blade instantaneously.Eventually

influences of the contact stiffness on the shrouded blade nonlinear response were studied with the formula

the results indicate that

the resonant frequency of the blade increase and the peak amplitude decrease gradually with increase in the contact stiffness

and all of which are close to a fixed value respectively.

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Related Author

SHAN Ying-chun

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张嵩

付俭伟

洪杰

CHEN Xiang

ZHU Jing

Li Guang-hui

Related Institution

School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 1000191

北京航空航天大学能源与动力工程学院

北京航空航天大学能源与动力工程学院航空发动机结构强度北京市重点实验室

先进航空发动机协同创新中心

China Gas Turbine Establishment, Aviation Industry Corporation of China, Jiangyou Sichuan

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