Frequency veering and mode shape interaction for rotating blades

WANG Jian-jun; QING Li-wei; LI Qi-han

Chinese

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Frequency veering and mode shape interaction for rotating blades

更新时间：2026-07-07

- Frequency veering and mode shape interaction for rotating blades
- Vol. 22, Issue 1, (2007)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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WANG Jian-jun, QING Li-wei, LI Qi-han. Frequency veering and mode shape interaction for rotating blades[J]. 2007, 22(1).
DOI：

WANG Jian-jun, QING Li-wei, LI Qi-han. Frequency veering and mode shape interaction for rotating blades[J]. 2007, 22(1). DOI：

摘要

通过对典型旋转叶片的有限元分析

讨论了旋转叶片动频特性的“频率转向”和“振型转换”问题

尤其是关于多模态耦合的复杂“频率转向”和“振型转换”的现象和特点.首先讨论了旋转叶片动频特性中的两阶模态间“频率转向”和“振型转换”问题

说明了这种耦合振动问题的机理

然后研究了多阶模态相互耦合所导致的复杂“频率转向”和“振型转换”现象

对其基本特点进行了详细的分析和说明.

Abstract

By the results from direct finite element analyses

frequency veering and mode shape interaction of rotating blade are studied

especially emphasis is placed on the multi-mode frequency veering and shape interaction.Firstly the finite element model of a simple geometry blade is given and the mode shapes and natural frequencies of this simple blade are calculated as a function of rotational speed using the ANSYS finite element program.Then frequency veering and shape interaction for the multi-mode and two-mode of rotating blades are discussed respectively.It is shown that except for the frequency veering problem with two-mode coupling

the multi-mode frequency veering and mode shape interaction of rotating blade are more complicate and must be further researched deeply.

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Related Institution

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