某航空发动机扭振减振器失效机理分析

樊康; 华春蓉; 闫兵; 陈楚才; 汪自强

doi:10.13433/j.cnki.1003-8728.2018.0225

某航空发动机扭振减振器失效机理分析

doi: 10.13433/j.cnki.1003-8728.2018.0225

1.
西南交通大学机械工程学院, 成都 610031

基金项目:

国家自然科学基金项目（51405399）资助

详细信息

作者简介:
樊康(1992-),硕士研究生,研究方向为内然机振动噪声控制,15520719813@163.com

通讯作者:
华春蓉,副教授,博士,hcrong@swjtu.cn

计量
- 文章访问数: 306
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- 被引次数: 0
出版历程
- 收稿日期: 2016-12-17
- 刊出日期: 2018-02-25

Failure Mechanism Analysis of Torsional Vibration Damper in an Aircraft Engine

1.
School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China

摘要

摘要: 为了探究某航空发动机曲轴扭振减振器的失效机理，采用有限元法对该发动机轴系进行了模态分析，并进行了试验验证；基于轴系扭纵耦合振动理论和谐响应分析计算了该轴系的轴向振动位移幅值；在此基础上对扭振减振器进行了失效分析。研究结果表明，因该航空发动机经常工作在过渡工况，引起轴系扭转共振和扭纵耦合振动，使得轴系轴向位移较大，轴系产生的轴向力是造成该扭振减振器失效的最主要原因。
- 航空发动机 /
- 扭振减振器 /
- 模态分析 /
- 扭纵耦合振动 /
- 失效分析
Abstract: In order to explore the failure mechanism of an aircraft engine's crankshaft torsional vibration damper, the finite element modal analysis and experimental verification of the engine shafting are carried out. Then, axial vibration displacement amplitude of the shaft is calculated based on coupled torsional-axial vibration theory and harmonic response analysis. On the basis of calculation results, the failure analysis of the torsional vibration damper is completed. The research results show that the aircraft engine often works in the transition condition, which causes torsional resonance and coupled torsional-axial vibration. The axial vibration makes the shafting axial displacement larger. The coupled axial force is the main cause of torsional vibration damper failure.
- aircraft engine /
- torsion vibration damper /
- modal analysis /
- coupled torsional-axial vibration /
- failure analysis

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参考文献(15)

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