Train running gear fault diagnosis method based on scale space guided fast spectrum correlation
A train running gear fault diagnosis method based on scale space guided fast spectrum correlation comprises the steps that high-speed train axle box vibration data of wheel set damage and bearing faults at different speeds are collected, and therefore an experiment data set containing different faul...
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| creator | LIU PENGFEI ZHANG SHOUJING GU XIAOHUI LIU ZECHAO LI HEFEI TIAN RUILAN ZHAO ZHIHONG MA ZEKUN LIU YONGQIANG GONG SHIXIAN |
| description | A train running gear fault diagnosis method based on scale space guided fast spectrum correlation comprises the steps that high-speed train axle box vibration data of wheel set damage and bearing faults at different speeds are collected, and therefore an experiment data set containing different fault modes is obtained; processing the collected data through a fast spectrum correlation algorithm to obtain a fast spectrum coherence function; quantizing the spectrum coherence function through an L2/L1 norm standard to obtain a guide curve; performing frequency band division on the guide curve through a scale space method; and screening the divided frequency bands by applying fault quantitative indexes, selecting the frequency band with the most fault information of the wheel set and the axle box bearing, and carrying out enhanced envelope to obtain an enhanced envelope spectrum, thereby realizing accurate identification of the faults of the wheel set and the axle box bearing. According to the method, wheel set da |
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According to the method, wheel set da</description><language>chi ; eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC DIGITAL DATA PROCESSING ; MEASURING ; PHYSICS ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240109&DB=EPODOC&CC=CN&NR=117370837A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240109&DB=EPODOC&CC=CN&NR=117370837A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIU PENGFEI</creatorcontrib><creatorcontrib>ZHANG SHOUJING</creatorcontrib><creatorcontrib>GU XIAOHUI</creatorcontrib><creatorcontrib>LIU ZECHAO</creatorcontrib><creatorcontrib>LI HEFEI</creatorcontrib><creatorcontrib>TIAN RUILAN</creatorcontrib><creatorcontrib>ZHAO ZHIHONG</creatorcontrib><creatorcontrib>MA ZEKUN</creatorcontrib><creatorcontrib>LIU YONGQIANG</creatorcontrib><creatorcontrib>GONG SHIXIAN</creatorcontrib><title>Train running gear fault diagnosis method based on scale space guided fast spectrum correlation</title><description>A train running gear fault diagnosis method based on scale space guided fast spectrum correlation comprises the steps that high-speed train axle box vibration data of wheel set damage and bearing faults at different speeds are collected, and therefore an experiment data set containing different fault modes is obtained; processing the collected data through a fast spectrum correlation algorithm to obtain a fast spectrum coherence function; quantizing the spectrum coherence function through an L2/L1 norm standard to obtain a guide curve; performing frequency band division on the guide curve through a scale space method; and screening the divided frequency bands by applying fault quantitative indexes, selecting the frequency band with the most fault information of the wheel set and the axle box bearing, and carrying out enhanced envelope to obtain an enhanced envelope spectrum, thereby realizing accurate identification of the faults of the wheel set and the axle box bearing. 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According to the method, wheel set da</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR |
| title | Train running gear fault diagnosis method based on scale space guided fast spectrum correlation |
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