Application of guided waves for detection of scale inside water supply pipes

被引：0

作者：

Lee, DH ^{[1
]}

Park, JS

Song, SJ

Kim, YH

Lee, HD

Bae, CH

机构：

[1] Sungkyunkwan Univ, Sch Mech Engn, Suwon 440746, South Korea

[2] Korea Inst Construct Technol, Goyang 411712, South Korea

[3] Korea Inst Water & Environm, Taejon 305730, South Korea

来源：

ADVANCES IN NONDESTRUCTIVE EVALUATION, PT 1-3 | 2004年 / 270-273卷

关键词：

water supply pipes; detection of scale; ultrasonic guided waves; mode;

D O I：

10.4028/www.scientific.net/KEM.270-273.428

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Since scale in water supplying pipes is one of the major sources of water contamination and users' complaint, detection of scale is very important for the proper maintenance of water piping. In the present study, the potential of guided waves is explored for the detection of scale accumulated inside surface of water supplying pipes. For this purpose, the dispersion characteristics of a water supply pipe are investigated using an analytical solution, and the ultrasonic guided wave modes and their wave structures are revealed theoretically. In addition, several modes of guided waves are generated and identified experimentally. From the experiments, it is observed that the flexural modes with the mode number of 2 are optimal for the detection of scale. An explanation to this experimental observation is made from the theoretical analysis on the wave structures.

引用

页码：428 / 433

页数：6

共 8 条

[1]

[Anonymous], J KOREAN SOC NONDEST

[2]

BROOK MV, 1990, REV PROG Q, V9, P243

[3]

CAWLEY P, 2003, REV PROGR QUANTITATI, V22, P1194

[4] 3-DIMENSIONAL INVESTIGATION OF THE PROPAGATION OF WAVES IN HOLLOW CIRCULAR CYLINDER .1. ANALYTICAL FOUNDATION [J].

GAZIS, DC .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1959, 31 (05) :568-573

[5]

LEE DH, 2002, THESIS SUNGKYUNKWAN

[6]

Shin HJ, 2001, REV PROG Q, V557, P1194

[7]

Shin HJ, 2000, AIP CONF PROC, V509, P709, DOI 10.1063/1.1306119

[8]

Song SJ, 2003, REV PROG Q, V20, P229, DOI 10.1063/1.1570141

← 1 →