On-line acoustic detection of bearing defects
This invention relates to apparatus for the detection of accustic impact frequencies, characteristic of bearing assembly failure during operation, which modulate an acoustic carrier frequency band. This apparatus allows for on-site or field application with high-level of ambient noise such as are pr...
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| creator | FRAREY JOHN L BAMBARA JOSEPH E SMITH RICHARD L |
| description | This invention relates to apparatus for the detection of accustic impact frequencies, characteristic of bearing assembly failure during operation, which modulate an acoustic carrier frequency band. This apparatus allows for on-site or field application with high-level of ambient noise such as are present in railroad yards. This apparatus allows for early detection of such failures, so that a repair may be made before damaging heat build-up or catastrophic bearing failure occurs. Additionally, with sufficient early warning in railroad applications, a train may continue running to a railyard for convenient shop repair rather than expensive field repair. |
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This apparatus allows for on-site or field application with high-level of ambient noise such as are present in railroad yards. This apparatus allows for early detection of such failures, so that a repair may be made before damaging heat build-up or catastrophic bearing failure occurs. Additionally, with sufficient early warning in railroad applications, a train may continue running to a railyard for convenient shop repair rather than expensive field repair.</description><edition>4</edition><language>eng</language><subject>BEARINGS ; BLASTING ; ELEMENTS OR CRANKSHAFT MECHANISMS ; ENGINEERING ELEMENTS AND UNITS ; FLEXIBLE SHAFTS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; LIGHTING ; MEASURING ; MECHANICAL ENGINEERING ; OTHER AUXILIARY EQUIPMENT FOR RAILWAYS ; PERFORMING OPERATIONS ; PHYSICS ; RAILWAYS ; ROTARY BODIES OTHER THAN GEARING ELEMENTS ; SHAFTS ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR ; THERMAL INSULATION IN GENERAL ; TRANSPORTING ; WEAPONS</subject><creationdate>1988</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=19881213&DB=EPODOC&CC=US&NR=4790190A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19881213&DB=EPODOC&CC=US&NR=4790190A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FRAREY; JOHN L</creatorcontrib><creatorcontrib>BAMBARA; JOSEPH E</creatorcontrib><creatorcontrib>SMITH; RICHARD L</creatorcontrib><title>On-line acoustic detection of bearing defects</title><description>This invention relates to apparatus for the detection of accustic impact frequencies, characteristic of bearing assembly failure during operation, which modulate an acoustic carrier frequency band. This apparatus allows for on-site or field application with high-level of ambient noise such as are present in railroad yards. This apparatus allows for early detection of such failures, so that a repair may be made before damaging heat build-up or catastrophic bearing failure occurs. Additionally, with sufficient early warning in railroad applications, a train may continue running to a railyard for convenient shop repair rather than expensive field repair.</description><subject>BEARINGS</subject><subject>BLASTING</subject><subject>ELEMENTS OR CRANKSHAFT MECHANISMS</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FLEXIBLE SHAFTS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>LIGHTING</subject><subject>MEASURING</subject><subject>MECHANICAL ENGINEERING</subject><subject>OTHER AUXILIARY EQUIPMENT FOR RAILWAYS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>RAILWAYS</subject><subject>ROTARY BODIES OTHER THAN GEARING ELEMENTS</subject><subject>SHAFTS</subject><subject>TESTING</subject><subject>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</subject><subject>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>TRANSPORTING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1988</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZND1z9PNycxLVUhMzi8tLslMVkhJLUlNLsnMz1PIT1NISk0sysxLBwqmAQWLeRhY0xJzilN5oTQ3g7yba4izh25qQX58anFBYnJqXmpJfGiwibmlgaGlgaMxYRUADm0pUQ</recordid><startdate>19881213</startdate><enddate>19881213</enddate><creator>FRAREY; JOHN L</creator><creator>BAMBARA; JOSEPH E</creator><creator>SMITH; RICHARD L</creator><scope>EVB</scope></search><sort><creationdate>19881213</creationdate><title>On-line acoustic detection of bearing defects</title><author>FRAREY; JOHN L ; BAMBARA; JOSEPH E ; SMITH; RICHARD L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US4790190A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1988</creationdate><topic>BEARINGS</topic><topic>BLASTING</topic><topic>ELEMENTS OR CRANKSHAFT MECHANISMS</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FLEXIBLE SHAFTS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>LIGHTING</topic><topic>MEASURING</topic><topic>MECHANICAL ENGINEERING</topic><topic>OTHER AUXILIARY EQUIPMENT FOR RAILWAYS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>RAILWAYS</topic><topic>ROTARY BODIES OTHER THAN GEARING ELEMENTS</topic><topic>SHAFTS</topic><topic>TESTING</topic><topic>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</topic><topic>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>TRANSPORTING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>FRAREY; JOHN L</creatorcontrib><creatorcontrib>BAMBARA; JOSEPH E</creatorcontrib><creatorcontrib>SMITH; RICHARD L</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FRAREY; JOHN L</au><au>BAMBARA; JOSEPH E</au><au>SMITH; RICHARD L</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>On-line acoustic detection of bearing defects</title><date>1988-12-13</date><risdate>1988</risdate><abstract>This invention relates to apparatus for the detection of accustic impact frequencies, characteristic of bearing assembly failure during operation, which modulate an acoustic carrier frequency band. This apparatus allows for on-site or field application with high-level of ambient noise such as are present in railroad yards. This apparatus allows for early detection of such failures, so that a repair may be made before damaging heat build-up or catastrophic bearing failure occurs. Additionally, with sufficient early warning in railroad applications, a train may continue running to a railyard for convenient shop repair rather than expensive field repair.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIGHTING MEASURING MECHANICAL ENGINEERING OTHER AUXILIARY EQUIPMENT FOR RAILWAYS PERFORMING OPERATIONS PHYSICS RAILWAYS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS |
| title | On-line acoustic detection of bearing defects |
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