Structure Damage Diagnostic Method of High-Flow Control Valve Stem-Reference-Cited by-同舟云学术

Structure Damage Diagnostic Method of High-Flow Control Valve Stem

Published:2015-10 Issue: Volume:667 Page:408-412
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Cao Fang¹,Kang Rong Jian²

Affiliation:

1. Qilu University of Technology

2. Jinan Changqing Planning and Architectural Design Research Institute

Abstract

According to the real structure and work condition of a high-flow mixed gas control valve used in recycling generating electricity project, a modal analysis model based on fluid-structure coupling system of control valve is set up. The natural frequency and mode of valve plug and stem is obtained. The structure damage diagnostic method of high-flow valve stem is put forward. According to the change of natural frequency of the valve stem to judge appearance of fracture cracks is explored. According to the amount by which the variation of natural frequency to determine the size of crack is discussed. It is the preliminary diagnosis to the damage of a high-Flow control valve stem in the special working environment, to avoid the gas leaks, the failure of valve action, adjust or commutation, etc.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.667.408.pdf

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