噪声与振动控制

噪声与振动控制 ›› 2012, Vol. 32 ›› Issue (4): 31-33.DOI: 10.3969/j.issn.1006-1355.2012.04.007

• 2.振动理论与数值解法 • 上一篇    下一篇

截止阀的有限元模态分析

贺 华，丁 炜，代学昌   

  1. （ 上海船舶设备研究所， 上海 200031 ）
  • 收稿日期:2011-09-20 修回日期:2011-07-07 出版日期:2012-08-18 发布日期:2012-08-18
  • 通讯作者: 贺 华

Modal Analysis Method of a Globe Valve

HE Hua，DING Wei，DAI Xue-chang   

  1. ( Shanghai Marine Equipment Research Institute, Shanghai 200031， China )
  • Received:2011-09-20 Revised:2011-07-07 Online:2012-08-18 Published:2012-08-18

摘要： 通过截止阀的三维建模型并进行模态分析，研究不同边界条件设置对模态分析结果的影响，并通过截止阀自由模态试验、工作模态试验对理论分析结果进行验证。结果显示阀杆和阀盘系统的固有频率较低，低噪声截止阀设计时不宜采用刚性壁假设；阀杆的边界条件设置将会极大的影响截止阀的计算结果。

关键词: 振动与波, 模态分析, 工作模态, 截止阀会

Abstract: A finite element model of a globe valve is built, and the modal analysis of the globe valve is performed based on ANSYS. The calculation results are validated by the modal test. The results show that the valve stem isn’t as rigid as usually assumed. The calculation results are influenced greatly by the boundary conditions.

Key words: vibration and wave, modal analysis, operational modal, globe valve

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