| 000 | 03490nam a22005415i 4500 | ||
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| 001 | 978-981-10-8348-8 | ||
| 003 | DE-He213 | ||
| 005 | 20220801221011.0 | ||
| 007 | cr nn 008mamaa | ||
| 008 | 180623s2018 si | s |||| 0|eng d | ||
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_a9789811083488 _9978-981-10-8348-8 |
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| 024 | 7 |
_a10.1007/978-981-10-8348-8 _2doi |
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| 050 | 4 | _aTA365-367.5 | |
| 072 | 7 |
_aTTA _2bicssc |
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_aTEC001000 _2bisacsh |
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_aTTA _2thema |
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_a620.2 _223 |
| 100 | 1 |
_aLi, Dan. _eauthor. _4aut _4http://id.loc.gov/vocabulary/relators/aut _953589 |
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| 245 | 1 | 0 |
_aRail Crack Monitoring Using Acoustic Emission Technique _h[electronic resource] / _cby Dan Li. |
| 250 | _a1st ed. 2018. | ||
| 264 | 1 |
_aSingapore : _bSpringer Nature Singapore : _bImprint: Springer, _c2018. |
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| 300 |
_aXXVIII, 136 p. 99 illus., 94 illus. in color. _bonline resource. |
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| 336 |
_atext _btxt _2rdacontent |
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_acomputer _bc _2rdamedia |
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_aonline resource _bcr _2rdacarrier |
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_atext file _bPDF _2rda |
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_aSpringer Theses, Recognizing Outstanding Ph.D. Research, _x2190-5061 |
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| 505 | 0 | _aIntroduction -- Literature review -- Propagation features and source location -- Sizing of fatigue cracks -- Field monitoring of rail cracks -- Conclusions and future work. | |
| 520 | _aThis 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 |
_aAcoustical engineering. _99499 |
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| 650 | 0 |
_aMaterials—Analysis. _953590 |
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| 650 | 0 |
_aAcoustics. _919841 |
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| 650 | 1 | 4 |
_aEngineering Acoustics. _931982 |
| 650 | 2 | 4 |
_aCharacterization and Analytical Technique. _953591 |
| 650 | 2 | 4 |
_aAcoustics. _919841 |
| 710 | 2 |
_aSpringerLink (Online service) _953592 |
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| 773 | 0 | _tSpringer Nature eBook | |
| 776 | 0 | 8 |
_iPrinted edition: _z9789811083471 |
| 776 | 0 | 8 |
_iPrinted edition: _z9789811083495 |
| 776 | 0 | 8 |
_iPrinted edition: _z9789811341298 |
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_aSpringer Theses, Recognizing Outstanding Ph.D. Research, _x2190-5061 _953593 |
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| 856 | 4 | 0 | _uhttps://doi.org/10.1007/978-981-10-8348-8 |
| 912 | _aZDB-2-ENG | ||
| 912 | _aZDB-2-SXE | ||
| 942 | _cEBK | ||
| 999 |
_c79178 _d79178 |
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