东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (5): 688-693.DOI: 10.12068/j.issn.1005-3026.2019.05.016

• 机械工程 • 上一篇    下一篇

基于有限元法的硬涂层-整体叶盘振动特性

高峰1,2， 孙伟1,2， 高俊男1,2   

  1. (1. 东北大学 机械工程与自动化学院， 辽宁 沈阳110819; 2. 东北大学 航空动力装备振动及控制教育部重点实验室， 辽宁 沈阳110819)
  • 收稿日期:2018-03-16 修回日期:2018-03-16 出版日期:2019-05-15 发布日期:2019-05-17
  • 通讯作者: 高峰
  • 作者简介:高峰(1990-)，男，山东临沂人，东北大学博士研究生； 孙伟(1975-)，男，辽宁沈阳人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51775092); 中央高校基本科研业务费专项资金资助项目(N170306002).

Vibration Characteristics Study for the Hard Coating Blisk Using Finite Element Method

GAO Feng1,2， SUN Wei1,2， GAO Jun-nan 1,2   

  1. 1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China; 2. Key Laboratory of Ministry of Education on Vibration and Its Control of Aerospace Power Equipment， Northeastern University， Shenyang 110819， China.
  • Received:2018-03-16 Revised:2018-03-16 Online:2019-05-15 Published:2019-05-17
  • Contact: SUN Wei
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摘要： 基于有限元法研究了硬涂层-整体叶盘的振动特性和硬涂层的阻尼减振性能.首先，基于能量法、复合Mindlin板理论和复模量理论建立了硬涂层-整体叶盘结构的动力学方程;其次，求解了硬涂层-整体叶盘结构的模态特性和振动响应;最后，以叶片涂敷NiCoCrAlY+YSZ硬涂层的整体叶盘为实例，从理论和实验两方面校验有限元模型和硬涂层对整体叶盘的影响.结果表明，NiCoCrAlY+YSZ硬涂层对整体叶盘固有频率的影响微弱，但是有较强的阻尼增强效应，能够显著抑制振动响应.

关键词: 整体叶盘, 阻尼减振, 硬涂层, 有限元法, 动力学分析

Abstract: Vibration characteristics of hard coating blisk and the damped vibration reduction of hard coating were investigated using finite element method. Firstly， the equation of motion of hard coating blisk was achieved according to the energy method and the Mindlin plate theory and the complex modulus theory; then， modal characteristics and forced vibration response of hard coating blisk were solved; finally， a blisk with NiCoCrAlY+YSZ deposition hard coating on both sides of blades was taken as study case， the finite element model of hard coating blisk was validated by the theoretical analysis and experimental test. The results reveal that the NiCoCrAlY+YSZ hard coating has weak effect on natural frequencies， but a strong damping effect on the blisk， and forced responses of the blisk were suppressed remarkably by the NiCoCrAlY+YSZ hard coating.

Key words: blisk, damped vibration reduction, hard coating, finite element method, dynamic analysis

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