Method for extracting fault characteristic frequency of main bearing of aero-engine in service environment
The invention discloses an aero-engine main bearing fault characteristic frequency extraction method in a service environment. The invention relates to a novel method for extracting a weak fault signal characteristic frequency of a main bearing of a military aero-engine in a strong noise service env...
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | ZHANG SHENGLIANG YANG LI YANG HONG FENG YUE ZHAO XUEHONG LI HAO CHEN GUO WANG HAO DU SHAOHUI WEI XIANGKAI HE XIURAN LYU YONGZHAO |
| description | The invention discloses an aero-engine main bearing fault characteristic frequency extraction method in a service environment. The invention relates to a novel method for extracting a weak fault signal characteristic frequency of a main bearing of a military aero-engine in a strong noise service environment. The method mainly comprises the following steps: aiming at a collected aero-engine casing measuring point vibration acceleration signal, separating the signal by adopting a weak random signal extraction method technology to obtain a discrete component and a random component of the signal, and constructing a dimensionless characteristic quantity reflecting a bearing fault characteristic frequency local/overall characteristic significant level; the method can effectively extract random components in the signals, filter interference components of discrete parts such as the rotating speed and the gear meshing frequency in square envelope spectrum analysis, improve the amplitude corresponding to the frequency |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN115711738A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN115711738A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN115711738A3</originalsourceid><addsrcrecordid>eNqNijEOgkAQRWksjHqH8QAUhBhsDdHYaGVPxvUvrIFZnF2I3l5IPIDVy3__LZPnBbHxD7JeCe-obKKTmiwPbSTT8CygLkRnyCpeA8R8yFvq2AndwTrn02aoTyG1E9D0BOjoDAgyOvXSQeI6WVhuAzY_rpLt6Xgrzyl6XyH0bCCIVXnNsl2RZUW-P-T_NF_JRkF7</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Method for extracting fault characteristic frequency of main bearing of aero-engine in service environment</title><source>esp@cenet</source><creator>ZHANG SHENGLIANG ; YANG LI ; YANG HONG ; FENG YUE ; ZHAO XUEHONG ; LI HAO ; CHEN GUO ; WANG HAO ; DU SHAOHUI ; WEI XIANGKAI ; HE XIURAN ; LYU YONGZHAO</creator><creatorcontrib>ZHANG SHENGLIANG ; YANG LI ; YANG HONG ; FENG YUE ; ZHAO XUEHONG ; LI HAO ; CHEN GUO ; WANG HAO ; DU SHAOHUI ; WEI XIANGKAI ; HE XIURAN ; LYU YONGZHAO</creatorcontrib><description>The invention discloses an aero-engine main bearing fault characteristic frequency extraction method in a service environment. The invention relates to a novel method for extracting a weak fault signal characteristic frequency of a main bearing of a military aero-engine in a strong noise service environment. The method mainly comprises the following steps: aiming at a collected aero-engine casing measuring point vibration acceleration signal, separating the signal by adopting a weak random signal extraction method technology to obtain a discrete component and a random component of the signal, and constructing a dimensionless characteristic quantity reflecting a bearing fault characteristic frequency local/overall characteristic significant level; the method can effectively extract random components in the signals, filter interference components of discrete parts such as the rotating speed and the gear meshing frequency in square envelope spectrum analysis, improve the amplitude corresponding to the frequency</description><language>chi ; eng</language><subject>MEASURING ; PHYSICS ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><creationdate>2023</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=20230224&DB=EPODOC&CC=CN&NR=115711738A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25546,76297</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230224&DB=EPODOC&CC=CN&NR=115711738A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHANG SHENGLIANG</creatorcontrib><creatorcontrib>YANG LI</creatorcontrib><creatorcontrib>YANG HONG</creatorcontrib><creatorcontrib>FENG YUE</creatorcontrib><creatorcontrib>ZHAO XUEHONG</creatorcontrib><creatorcontrib>LI HAO</creatorcontrib><creatorcontrib>CHEN GUO</creatorcontrib><creatorcontrib>WANG HAO</creatorcontrib><creatorcontrib>DU SHAOHUI</creatorcontrib><creatorcontrib>WEI XIANGKAI</creatorcontrib><creatorcontrib>HE XIURAN</creatorcontrib><creatorcontrib>LYU YONGZHAO</creatorcontrib><title>Method for extracting fault characteristic frequency of main bearing of aero-engine in service environment</title><description>The invention discloses an aero-engine main bearing fault characteristic frequency extraction method in a service environment. The invention relates to a novel method for extracting a weak fault signal characteristic frequency of a main bearing of a military aero-engine in a strong noise service environment. The method mainly comprises the following steps: aiming at a collected aero-engine casing measuring point vibration acceleration signal, separating the signal by adopting a weak random signal extraction method technology to obtain a discrete component and a random component of the signal, and constructing a dimensionless characteristic quantity reflecting a bearing fault characteristic frequency local/overall characteristic significant level; the method can effectively extract random components in the signals, filter interference components of discrete parts such as the rotating speed and the gear meshing frequency in square envelope spectrum analysis, improve the amplitude corresponding to the frequency</description><subject>MEASURING</subject><subject>PHYSICS</subject><subject>TESTING</subject><subject>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</subject><subject>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNijEOgkAQRWksjHqH8QAUhBhsDdHYaGVPxvUvrIFZnF2I3l5IPIDVy3__LZPnBbHxD7JeCe-obKKTmiwPbSTT8CygLkRnyCpeA8R8yFvq2AndwTrn02aoTyG1E9D0BOjoDAgyOvXSQeI6WVhuAzY_rpLt6Xgrzyl6XyH0bCCIVXnNsl2RZUW-P-T_NF_JRkF7</recordid><startdate>20230224</startdate><enddate>20230224</enddate><creator>ZHANG SHENGLIANG</creator><creator>YANG LI</creator><creator>YANG HONG</creator><creator>FENG YUE</creator><creator>ZHAO XUEHONG</creator><creator>LI HAO</creator><creator>CHEN GUO</creator><creator>WANG HAO</creator><creator>DU SHAOHUI</creator><creator>WEI XIANGKAI</creator><creator>HE XIURAN</creator><creator>LYU YONGZHAO</creator><scope>EVB</scope></search><sort><creationdate>20230224</creationdate><title>Method for extracting fault characteristic frequency of main bearing of aero-engine in service environment</title><author>ZHANG SHENGLIANG ; YANG LI ; YANG HONG ; FENG YUE ; ZHAO XUEHONG ; LI HAO ; CHEN GUO ; WANG HAO ; DU SHAOHUI ; WEI XIANGKAI ; HE XIURAN ; LYU YONGZHAO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN115711738A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2023</creationdate><topic>MEASURING</topic><topic>PHYSICS</topic><topic>TESTING</topic><topic>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</topic><topic>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</topic><toplevel>online_resources</toplevel><creatorcontrib>ZHANG SHENGLIANG</creatorcontrib><creatorcontrib>YANG LI</creatorcontrib><creatorcontrib>YANG HONG</creatorcontrib><creatorcontrib>FENG YUE</creatorcontrib><creatorcontrib>ZHAO XUEHONG</creatorcontrib><creatorcontrib>LI HAO</creatorcontrib><creatorcontrib>CHEN GUO</creatorcontrib><creatorcontrib>WANG HAO</creatorcontrib><creatorcontrib>DU SHAOHUI</creatorcontrib><creatorcontrib>WEI XIANGKAI</creatorcontrib><creatorcontrib>HE XIURAN</creatorcontrib><creatorcontrib>LYU YONGZHAO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ZHANG SHENGLIANG</au><au>YANG LI</au><au>YANG HONG</au><au>FENG YUE</au><au>ZHAO XUEHONG</au><au>LI HAO</au><au>CHEN GUO</au><au>WANG HAO</au><au>DU SHAOHUI</au><au>WEI XIANGKAI</au><au>HE XIURAN</au><au>LYU YONGZHAO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for extracting fault characteristic frequency of main bearing of aero-engine in service environment</title><date>2023-02-24</date><risdate>2023</risdate><abstract>The invention discloses an aero-engine main bearing fault characteristic frequency extraction method in a service environment. The invention relates to a novel method for extracting a weak fault signal characteristic frequency of a main bearing of a military aero-engine in a strong noise service environment. The method mainly comprises the following steps: aiming at a collected aero-engine casing measuring point vibration acceleration signal, separating the signal by adopting a weak random signal extraction method technology to obtain a discrete component and a random component of the signal, and constructing a dimensionless characteristic quantity reflecting a bearing fault characteristic frequency local/overall characteristic significant level; the method can effectively extract random components in the signals, filter interference components of discrete parts such as the rotating speed and the gear meshing frequency in square envelope spectrum analysis, improve the amplitude corresponding to the frequency</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | chi ; eng |
| recordid | cdi_epo_espacenet_CN115711738A |
| source | esp@cenet |
| subjects | MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR |
| title | Method for extracting fault characteristic frequency of main bearing of aero-engine in service environment |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-17T11%3A10%3A58IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=ZHANG%20SHENGLIANG&rft.date=2023-02-24&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN115711738A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |