國立虎尾科技大學 |

Rail crack monitoring using acoustic emission technique

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Rail crack monitoring using acoustic emission technique/ by Dan Li.
Author:	Li, Dan.
Published:	Singapore :Springer Singapore : : 2018.,
Description:	xxviii, 136 p. :ill. (some col.), digital ; : 24 cm.;
Contained By:	Springer eBooks
Subject:	Railroad tracks - Testing. -
Online resource:	http://dx.doi.org/10.1007/978-981-10-8348-8
ISBN:	9789811083488

Rail crack monitoring using acoustic emission technique
Li, Dan.

Rail crack monitoring using acoustic emission technique[electronic resource] /by Dan Li. - Singapore :Springer Singapore :2018. - xxviii, 136 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- Literature review -- Propagation features and source location -- Sizing of fatigue cracks -- Field monitoring of rail cracks -- Conclusions and future work.

This thesis provides an innovative strategy for rail crack monitoring using the acoustic emission (AE) technique. The field study presented is a significant improvement on laboratory studies in the literature in terms of complex rail profile and crack conditions as well as high operational noise. AE waves induced by crack propagation, crack closure, wheel-rail impact and operational noise were obtained through a series of laboratory and field tests, and analyzed by wavelet transform (WT) and synchrosqueezed wavelet transform (SWT) A wavelet power-based index and the enhanced SWT scalogram were sequentially proposed to classify AE waves induced by different mechanisms according to their energy distributions in the time-frequency domain. A novel crack sizing method taking advantage of crack closure-induced AE waves was developed based on fatigue tests in the laboratory. The propagation characteristics of AE waves in the rail were investigated, and Tsallis synchrosqueezed wavelet entropy (TSWE) with time was finally brought forward to detect and locate rail cracks in the field. The proposed strategy for detection, location and sizing of rail cracks helps to ensure the safe and smooth operation of the railway system. This thesis is of interest to graduate students, researchers and practitioners in the area of structural health monitoring.

ISBN: 9789811083488

Standard No.: 10.1007/978-981-10-8348-8doiSubjects--Topical Terms:

1206203
Railroad tracks
--Testing.

LC Class. No.: TF537

Dewey Class. No.: 625.15

Rail crack monitoring using acoustic emission technique
LDR:02501nam a2200325 a 4500 001 927154
003 DE-He213
005 20190107151731.0
006 m d
007 cr nn 008maaau
008 190626s2018 si s 0 eng d
020 $a 9789811083488 $q (electronic bk.)
020 $a 9789811083471 $q (paper)
024 7 $a 10.1007/978-981-10-8348-8 $2 doi
035 $a 978-981-10-8348-8
040 $a GP $c GP
041 0 $a eng
050 4 $a TF537
072 7 $a TTA $2 bicssc
072 7 $a TEC001000 $2 bisacsh
082 0 4 $a 625.15 $2 23
090 $a TF537 $b .L693 2018
100 1 $a Li, Dan. $3 1206202
245 1 0 $a Rail crack monitoring using acoustic emission technique $h [electronic resource] / $c by Dan Li.
260 $a Singapore : $c 2018. $b Springer Singapore : $b Imprint: Springer,
300 $a xxviii, 136 p. : $b ill. (some col.), digital ; $c 24 cm.
490 1 $a Springer theses, $x 2190-5053
505 0 $a Introduction -- Literature review -- Propagation features and source location -- Sizing of fatigue cracks -- Field monitoring of rail cracks -- Conclusions and future work.
520 $a This thesis provides an innovative strategy for rail crack monitoring using the acoustic emission (AE) technique. The field study presented is a significant improvement on laboratory studies in the literature in terms of complex rail profile and crack conditions as well as high operational noise. AE waves induced by crack propagation, crack closure, wheel-rail impact and operational noise were obtained through a series of laboratory and field tests, and analyzed by wavelet transform (WT) and synchrosqueezed wavelet transform (SWT) A wavelet power-based index and the enhanced SWT scalogram were sequentially proposed to classify AE waves induced by different mechanisms according to their energy distributions in the time-frequency domain. A novel crack sizing method taking advantage of crack closure-induced AE waves was developed based on fatigue tests in the laboratory. The propagation characteristics of AE waves in the rail were investigated, and Tsallis synchrosqueezed wavelet entropy (TSWE) with time was finally brought forward to detect and locate rail cracks in the field. The proposed strategy for detection, location and sizing of rail cracks helps to ensure the safe and smooth operation of the railway system. This thesis is of interest to graduate students, researchers and practitioners in the area of structural health monitoring.
650 0 $a Railroad tracks $x Testing. $3 1206203
650 0 $a Acoustic emission testing. $3 528290
650 1 4 $a Engineering. $3 561152
650 2 4 $a Engineering Acoustics. $3 785331
650 2 4 $a Characterization and Evaluation of Materials. $3 674449
650 2 4 $a Acoustics. $3 670692
710 2 $a SpringerLink (Online service) $3 593884
773 0 $t Springer eBooks
830 0 $a Springer theses. $3 831604
856 4 0 $u http://dx.doi.org/10.1007/978-981-10-8348-8
950 $a Engineering (Springer-11647)