Vibration Attenuator
A vibration attenuator for a rotor is rotatable about a mast axis and has a frame configured for rotation about the mast axis relative to the rotor. A first mass is axially translatable in a first direction relative to the frame parallel to a first axis, and a first biasing force urges the first mas...
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| creator | Miller, Gary Parham, JR., Thomas C Heverly, David Smith, Michael R Stamps, Frank Bradley Seifert, Michael Scott Choi, Jouyoung Jason Rauber, Richard E |
| description | A vibration attenuator for a rotor is rotatable about a mast axis and has a frame configured for rotation about the mast axis relative to the rotor. A first mass is axially translatable in a first direction relative to the frame parallel to a first axis, and a first biasing force urges the first mass toward a first-mass rest position in which the first mass is symmetric about the mast axis. A second mass is axially translatable in a second direction relative to the frame parallel to a second axis, and a second biasing force urges the second mass toward a second-mass rest position in which the second mass is symmetric about the mast axis. A selected first or second mass moves radially outward from the rest position to oppose vibrations in the rotor. |
| format | Patent |
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A first mass is axially translatable in a first direction relative to the frame parallel to a first axis, and a first biasing force urges the first mass toward a first-mass rest position in which the first mass is symmetric about the mast axis. A second mass is axially translatable in a second direction relative to the frame parallel to a second axis, and a second biasing force urges the second mass toward a second-mass rest position in which the second mass is symmetric about the mast axis. A selected first or second mass moves radially outward from the rest position to oppose vibrations in the rotor.</description><language>eng</language><subject>AEROPLANES ; AIRCRAFT ; AVIATION ; COSMONAUTICS ; FOR PERFORMING MECHANICAL WORK IN GENERAL ; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL ; HELICOPTERS ; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY ; PERFORMING OPERATIONS ; TRANSPORTING</subject><creationdate>2019</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=20190829&DB=EPODOC&CC=US&NR=2019263512A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190829&DB=EPODOC&CC=US&NR=2019263512A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Miller, Gary</creatorcontrib><creatorcontrib>Parham, JR., Thomas C</creatorcontrib><creatorcontrib>Heverly, David</creatorcontrib><creatorcontrib>Smith, Michael R</creatorcontrib><creatorcontrib>Stamps, Frank Bradley</creatorcontrib><creatorcontrib>Seifert, Michael Scott</creatorcontrib><creatorcontrib>Choi, Jouyoung Jason</creatorcontrib><creatorcontrib>Rauber, Richard E</creatorcontrib><title>Vibration Attenuator</title><description>A vibration attenuator for a rotor is rotatable about a mast axis and has a frame configured for rotation about the mast axis relative to the rotor. A first mass is axially translatable in a first direction relative to the frame parallel to a first axis, and a first biasing force urges the first mass toward a first-mass rest position in which the first mass is symmetric about the mast axis. A second mass is axially translatable in a second direction relative to the frame parallel to a second axis, and a second biasing force urges the second mass toward a second-mass rest position in which the second mass is symmetric about the mast axis. A selected first or second mass moves radially outward from the rest position to oppose vibrations in the rotor.</description><subject>AEROPLANES</subject><subject>AIRCRAFT</subject><subject>AVIATION</subject><subject>COSMONAUTICS</subject><subject>FOR PERFORMING MECHANICAL WORK IN GENERAL</subject><subject>GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL</subject><subject>HELICOPTERS</subject><subject>METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY</subject><subject>PERFORMING OPERATIONS</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAJy0wqSizJzM9TcCwpSc0rTSzJL-JhYE1LzClO5YXS3AzKbq4hzh66qQX58anFBYnJqXmpJfGhwUYGhpZGZsamhkaOhsbEqQIA4z8h4g</recordid><startdate>20190829</startdate><enddate>20190829</enddate><creator>Miller, Gary</creator><creator>Parham, JR., Thomas C</creator><creator>Heverly, David</creator><creator>Smith, Michael R</creator><creator>Stamps, Frank Bradley</creator><creator>Seifert, Michael Scott</creator><creator>Choi, Jouyoung Jason</creator><creator>Rauber, Richard E</creator><scope>EVB</scope></search><sort><creationdate>20190829</creationdate><title>Vibration Attenuator</title><author>Miller, Gary ; Parham, JR., Thomas C ; Heverly, David ; Smith, Michael R ; Stamps, Frank Bradley ; Seifert, Michael Scott ; Choi, Jouyoung Jason ; Rauber, Richard E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2019263512A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2019</creationdate><topic>AEROPLANES</topic><topic>AIRCRAFT</topic><topic>AVIATION</topic><topic>COSMONAUTICS</topic><topic>FOR PERFORMING MECHANICAL WORK IN GENERAL</topic><topic>GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL</topic><topic>HELICOPTERS</topic><topic>METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY</topic><topic>PERFORMING OPERATIONS</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>Miller, Gary</creatorcontrib><creatorcontrib>Parham, JR., Thomas C</creatorcontrib><creatorcontrib>Heverly, David</creatorcontrib><creatorcontrib>Smith, Michael R</creatorcontrib><creatorcontrib>Stamps, Frank Bradley</creatorcontrib><creatorcontrib>Seifert, Michael Scott</creatorcontrib><creatorcontrib>Choi, Jouyoung Jason</creatorcontrib><creatorcontrib>Rauber, Richard E</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Miller, Gary</au><au>Parham, JR., Thomas C</au><au>Heverly, David</au><au>Smith, Michael R</au><au>Stamps, Frank Bradley</au><au>Seifert, Michael Scott</au><au>Choi, Jouyoung Jason</au><au>Rauber, Richard E</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Vibration Attenuator</title><date>2019-08-29</date><risdate>2019</risdate><abstract>A vibration attenuator for a rotor is rotatable about a mast axis and has a frame configured for rotation about the mast axis relative to the rotor. A first mass is axially translatable in a first direction relative to the frame parallel to a first axis, and a first biasing force urges the first mass toward a first-mass rest position in which the first mass is symmetric about the mast axis. A second mass is axially translatable in a second direction relative to the frame parallel to a second axis, and a second biasing force urges the second mass toward a second-mass rest position in which the second mass is symmetric about the mast axis. A selected first or second mass moves radially outward from the rest position to oppose vibrations in the rotor.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AEROPLANES AIRCRAFT AVIATION COSMONAUTICS FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL HELICOPTERS METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS TRANSPORTING |
| title | Vibration Attenuator |
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