SYSTEM COMPRISING A HELICOPTER ROTOR AND BEARINGS WITH SENSORS AND METHOD OF MONITORING THE SYSTEM
A system comprises a plurality of identical helicopter pitch control bearings (22a - 22d) operating under identical conditions, wherein each of the bearings (22a - 22d) is equipped with at least one sensor (30a - 30d) for measuring the same operating parameter for each of the bearings (22a - 22d) at...
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| creator | Colton, Michael Bell, Andrew |
| description | A system comprises a plurality of identical helicopter pitch control bearings (22a - 22d) operating under identical conditions, wherein each of the bearings (22a - 22d) is equipped with at least one sensor (30a - 30d) for measuring the same operating parameter for each of the bearings (22a - 22d) at a given time, and a monitoring unit (32) configured to receive and process the signals of the sensors (30a - 30d) and to generate maintenance data based on the sensor signals, whereby the sensors are configured to obtain, at the same given time, measurement values of the same operating parameter for each of the bearings (22a-22d); the monitoring unit (32) is configured to calculate at least a standard deviation or variance at the given time from the sensor signals by comparing the measurement values obtained at the same time, the standard deviation or variance quantifying a width of a distribution of the measurement values; and in that the monitoring unit is further configured to compare the standard deviation or variance with a threshold value and to generate a signal indicating that one of the bearings (22a - 22d) requires replacement if the calculated standard deviation or variance exceeds the threshold value. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP3564646B1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP3564646B1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP3564646B13</originalsourceid><addsrcrecordid>eNqNjE0KwjAQRrNxIeod5gIupOo-TacmYDIhMyBdlSpxJVqo98f4cwD5Ft_iPd5cnbljQQ-GfEyOXTiABotHZygKJkgklECHBmrUqWCGkxMLjIEp8Yd4FEsNUAuegiv-uyIW4dteqtl1uE159fuFghbF2HUeH32exuGS7_nZY6x2-21Zvan-UF6jWzPZ</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>SYSTEM COMPRISING A HELICOPTER ROTOR AND BEARINGS WITH SENSORS AND METHOD OF MONITORING THE SYSTEM</title><source>esp@cenet</source><creator>Colton, Michael ; Bell, Andrew</creator><creatorcontrib>Colton, Michael ; Bell, Andrew</creatorcontrib><description>A system comprises a plurality of identical helicopter pitch control bearings (22a - 22d) operating under identical conditions, wherein each of the bearings (22a - 22d) is equipped with at least one sensor (30a - 30d) for measuring the same operating parameter for each of the bearings (22a - 22d) at a given time, and a monitoring unit (32) configured to receive and process the signals of the sensors (30a - 30d) and to generate maintenance data based on the sensor signals, whereby the sensors are configured to obtain, at the same given time, measurement values of the same operating parameter for each of the bearings (22a-22d); the monitoring unit (32) is configured to calculate at least a standard deviation or variance at the given time from the sensor signals by comparing the measurement values obtained at the same time, the standard deviation or variance quantifying a width of a distribution of the measurement values; and in that the monitoring unit is further configured to compare the standard deviation or variance with a threshold value and to generate a signal indicating that one of the bearings (22a - 22d) requires replacement if the calculated standard deviation or variance exceeds the threshold value.</description><language>eng ; fre ; ger</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 ; LIGHTING ; MEASURING ; MECHANICAL ENGINEERING ; PHYSICS ; ROTARY BODIES OTHER THAN GEARING ELEMENTS ; SHAFTS ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; 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the monitoring unit (32) is configured to calculate at least a standard deviation or variance at the given time from the sensor signals by comparing the measurement values obtained at the same time, the standard deviation or variance quantifying a width of a distribution of the measurement values; and in that the monitoring unit is further configured to compare the standard deviation or variance with a threshold value and to generate a signal indicating that one of the bearings (22a - 22d) requires replacement if the calculated standard deviation or variance exceeds the threshold value.</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>LIGHTING</subject><subject>MEASURING</subject><subject>MECHANICAL ENGINEERING</subject><subject>PHYSICS</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>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjE0KwjAQRrNxIeod5gIupOo-TacmYDIhMyBdlSpxJVqo98f4cwD5Ft_iPd5cnbljQQ-GfEyOXTiABotHZygKJkgklECHBmrUqWCGkxMLjIEp8Yd4FEsNUAuegiv-uyIW4dteqtl1uE159fuFghbF2HUeH32exuGS7_nZY6x2-21Zvan-UF6jWzPZ</recordid><startdate>20230222</startdate><enddate>20230222</enddate><creator>Colton, Michael</creator><creator>Bell, Andrew</creator><scope>EVB</scope></search><sort><creationdate>20230222</creationdate><title>SYSTEM COMPRISING A HELICOPTER ROTOR AND BEARINGS WITH SENSORS AND METHOD OF MONITORING THE SYSTEM</title><author>Colton, Michael ; Bell, Andrew</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3564646B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2023</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>LIGHTING</topic><topic>MEASURING</topic><topic>MECHANICAL ENGINEERING</topic><topic>PHYSICS</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>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>Colton, Michael</creatorcontrib><creatorcontrib>Bell, Andrew</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Colton, Michael</au><au>Bell, Andrew</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SYSTEM COMPRISING A HELICOPTER ROTOR AND BEARINGS WITH SENSORS AND METHOD OF MONITORING THE SYSTEM</title><date>2023-02-22</date><risdate>2023</risdate><abstract>A system comprises a plurality of identical helicopter pitch control bearings (22a - 22d) operating under identical conditions, wherein each of the bearings (22a - 22d) is equipped with at least one sensor (30a - 30d) for measuring the same operating parameter for each of the bearings (22a - 22d) at a given time, and a monitoring unit (32) configured to receive and process the signals of the sensors (30a - 30d) and to generate maintenance data based on the sensor signals, whereby the sensors are configured to obtain, at the same given time, measurement values of the same operating parameter for each of the bearings (22a-22d); the monitoring unit (32) is configured to calculate at least a standard deviation or variance at the given time from the sensor signals by comparing the measurement values obtained at the same time, the standard deviation or variance quantifying a width of a distribution of the measurement values; and in that the monitoring unit is further configured to compare the standard deviation or variance with a threshold value and to generate a signal indicating that one of the bearings (22a - 22d) requires replacement if the calculated standard deviation or variance exceeds the threshold value.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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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 LIGHTING MEASURING MECHANICAL ENGINEERING PHYSICS 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 WEAPONS |
| title | SYSTEM COMPRISING A HELICOPTER ROTOR AND BEARINGS WITH SENSORS AND METHOD OF MONITORING THE SYSTEM |
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