Engineering research on prediction and suppression of blade flutter in compressor fan

SUN Hai; LI Jian; YANG Lin; CHEN Bao-shi; LIU Yi-xiong

doi:10.13224/j.cnki.jasp.2015.04.011

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Engineering research on prediction and suppression of blade flutter in compressor fan

更新时间：2026-07-07

- Engineering research on prediction and suppression of blade flutter in compressor fan
- Vol. 30, Issue 4, Pages: 846-853(2015)
- 作者机构：
  
  中国航空工业集团公司沈阳发动机设计研究所,沈阳,110015
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2015.04.011
  CLC：
- Published：2015
- 稿件说明：
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孙海, 李坚, 杨琳, 陈葆实, 刘一雄. 压气机风扇叶片颤振预测和抑制的工程研究[J]. 航空动力学报, 2015, 30(4): 846-853.

doi: 10.13224/j.cnki.jasp.2015.04.011
孙海, 李坚, 杨琳, 陈葆实, 刘一雄. 压气机风扇叶片颤振预测和抑制的工程研究[J]. 航空动力学报, 2015, 30(4): 846-853. DOI： 10.13224/j.cnki.jasp.2015.04.011.

doi: 10.13224/j.cnki.jasp.2015.04.011 DOI：

摘要

通过能量法对某压气机风扇试验件叶片原型方案进行气弹稳定性预测

计算出该方案的颤振边界点.对其中气弹不稳定叶片的几何造型进行修改以提高气弹稳定性.通过原型和改型方案的叶片几何造型、气动性能、振动特性以及气弹稳定性的对比

从气动角度分析了压气机风扇叶片颤振的机理.获得了工程上抑制压气机风扇叶片颤振的有效手段

如增大叶片弦长、降低展弦比

增大叶片厚度、增强叶片刚性

减小攻角、改善流动状况.

Abstract

The aeroelastic stability prediction and the flutter margin point were achieved by energy method in original scheme of prototype compressor fan blade. The geometric modeling of aeroelastic unstable blade was modified to improve the aeroelastic stability. By comparison of blade geometric modeling

aerodynamic performance

vibration characteristic and aeroelastic stability in original and modified schemes

the blade flutter mechanism of compressor fan was analyzed on aerodynamic aspect. The effective engineering flutter suppression means for the compressor fan blade are achieved

such as increasing the chord length of blade and decreasing the aspect ratio

increasing the blade thickness and stiffness

decreasing the angle of incidence and improving the flow.

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Related Institution

北京航空航天大学能源与动力工程学院

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北京航空航天大学宇航学院

School of Jet Propulsion, Beijing University of Aeronautics and Astronautics

School of Aerospace Engineering，Beijing Institute of Technology

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