Correlation analysis of blade vibration induced by inlet distortion and rotating stall

DU Jian-jian; LI Shun-ming; FANG Li-cheng

Chinese

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Correlation analysis of blade vibration induced by inlet distortion and rotating stall

更新时间：2026-07-07

- Correlation analysis of blade vibration induced by inlet distortion and rotating stall
- Vol. 26, Issue 11, (2011)
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- Published：2011
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DU Jian-jian, LI Shun-ming, FANG Li-cheng. Correlation analysis of blade vibration induced by inlet distortion and rotating stall[J]. 2011, 26(11).
DOI：

DU Jian-jian, LI Shun-ming, FANG Li-cheng. Correlation analysis of blade vibration induced by inlet distortion and rotating stall[J]. 2011, 26(11). DOI：

摘要

为了定量地分析进气畸变与旋转失速两种气动载荷之间以及两者单独激励下叶片位移响应之间的相关程度

基于双级低速轴流压气机试验器上进行的进气畸变试验与旋转失速试验所得的流场数据

对叶片在两者单独激励下的振动特性进行仿真计算

并从统计学的角度对变量之间的相关性进行分析.结果表明:两种流场压力数据之间相关性极高

说明两者共享的特征较多;节点位移响应之间的相关程度低于两种压力载荷之间的相关程度;同一叶型截面上节点位移响应之间的相关系数曲线大致成不对称的V字型;沿叶身截面从叶根至叶尖节点位移响应之间的相关系数逐渐降低

主要与边界条件有关.

Abstract

To analyze correlation degree between inlet distortion and rotating stall quantitatively

as well as blade displacement responses induced by them

blade vibration characteristics were simulated under inlet distortion or rotating stall by software ANSYS based on measurement data obtained from two stage low speed axial compressor

and correlation analysis between variables was made with statistics theories.The results indicate:two flow pressure data are highly related

and many characteristics are shared by them.Correlation degree between displacement responses is lower than that between inlet distortion and rotating stall.Correlation coefficient curve between displacement responses of the same section is of roughly asymmetrical V shape.Correlation coefficient between displacement responses of blade body from root to tip decreases gradually as it is mainly related to boundary conditions.

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Related Author

FANG Li-cheng

LI Shun-ming

DU Jian-jian

CHEN Mo-li

ZHANG Lin

ZHANG Kun-yuan

WANG Lei

NAN Xiang-jun

Related Institution

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

Department of Aerospace Engineering,School of Mechanical Engineering, Nanjing University of Science and Technology

School of Astronautics, Beijing University of Aeronautics and Astronautics

The First Aircraft Institute, Aviation Industry Corporation of China,Xian

School of Power and Energy, Northwestern Polytechnical University,Xian

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