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Author:

秦飞 (秦飞.) (Scholars:秦飞) | 陈立明 (陈立明.)

Indexed by:

CQVIP PKU CSCD

Abstract:

采用三维有限元模型,考虑叶片变形的几何非线性和叶根接触非线性,研究常用的枞树型叶根尺寸误差对叶片固有频率的影响.分析结果表明叶根误差发生的位置对叶片弯曲振型的固有频率影响较大,对扭转振型影响较小;误差的大小对叶片的各阶固有频率影响均较小,但对叶根接触状态或者说对叶根应力分布有影响;比较发现,在计算固有频率时,将叶片在叶根处简单地处理成固支位移边界是不合理的.

Keyword:

接触分析 汽轮机叶片 尺寸误差 固有频率 有限元分析

Author Community:

  • [ 1 ] [秦飞]北京工业大学
  • [ 2 ] [陈立明]北京工业大学

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Source :

机械工程学报

ISSN: 0577-6686

Year: 2006

Issue: 6

Volume: 42

Page: 235-238

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 8

Chinese Cited Count:

30 Days PV: 15

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