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research-article

Novel Defect Location Method for Pressure Vessel by Using L (0, 2) Mode Guided wave

[+] Author and Article Information
Shuangmiao Zhai

School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
18322695887@163.com

Shaoping Zhou

School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
shpzhou@ecust.edu.cn

Shaojie Chen

School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
jason_chen128@163.com

Bin Yang

School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
yangbin@ecust.edu.cn

Yong Li

School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
liyong@ecust.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4039502 History: Received November 09, 2017; Revised February 28, 2018

Abstract

Pressure vessel plays an increasingly important role in process industries, in which its performance degradation, such as crack and corrosion, may lead to serious accidents and significant economic losses. Guided wave-based method is a cost-effective means for pressure vessel rapid interrogation. In this paper, direct-wave and fuzzy C-means clustering algorithm (FCM) are used to locate defect for pressure vessel. Finite element (FE) simulation is applied to analyze the propagation characteristics of guided waves. The experiment using the method based on direct-wave and FCM has been conducted on the barrel and head with different sensor arrays respectively. The variation rule of the direct-wave difference with different distance coefficients has been studied. By combination of the FCM, the defects on barrel and head can be detected accurately. The defect inspection experiment for pressure vessel using ellipse imaging algorithm is conducted as well. The experimental results show that the method based on direct-wave and FCM can locate the defects on barrel and head of pressure vessel effectively and accurately.

Copyright (c) 2018 by ASME
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