Helicopter vibration control system and circular force generation systems for canceling vibrations
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-019/00
G05D-015/00
G05D-019/00
B64C-027/00
F16F-015/22
출원번호
US-0971026
(2010-12-17)
등록번호
US-9073627
(2015-07-07)
발명자
/ 주소
Jolly, Mark R.
Meyers, Andrew D.
Mellinger, Daniel
Ivers, Douglas E.
Badre-Alam, Askari
Swanson, Douglas A.
Altieri, Russell E.
출원인 / 주소
LORD Corporation
대리인 / 주소
Miller, Richard G.
인용정보
피인용 횟수 :
3인용 특허 :
133
초록▼
A rotary wing aircraft including a vehicle vibration control system. The vehicle vibration control system includes a rotary wing aircraft member sensor for outputting rotary wing aircraft member data correlating to the relative rotation of the rotating rotary wing hub member rotating relative to the
A rotary wing aircraft including a vehicle vibration control system. The vehicle vibration control system includes a rotary wing aircraft member sensor for outputting rotary wing aircraft member data correlating to the relative rotation of the rotating rotary wing hub member rotating relative to the nonrotating body, at least a first nonrotating body vibration sensor, the at least first nonrotating body vibration sensor outputting at least first nonrotating body vibration sensor data correlating to vibrations, at least a first nonrotating body circular force generator, the at least a first nonrotating body circular force generator fixedly coupled with the nonrotating body, the at least first nonrotating body circular force generator controlled to produce a rotating force with a controllable rotating force magnitude and a controllable rotating force phase, the controllable rotating force magnitude controlled from a minimal force magnitude up to a maximum force magnitude, and with the controllable rotating force phase controlled in reference to the rotary wing aircraft member sensor data correlating to the relative rotation of the rotating rotary wing hub rotating relative to the nonrotating body wherein the vibration sensed by the at least first nonrotating body vibration sensor is reduced.
대표청구항▼
1. A vehicle vibration control system for controlling troublesome vibrations in a nonrotating vehicle body having a rotating machine member, said vehicle vibration control system including: a vehicle vibration control system controller,a rotating machine member sensor, for inputting vehicle rotating
1. A vehicle vibration control system for controlling troublesome vibrations in a nonrotating vehicle body having a rotating machine member, said vehicle vibration control system including: a vehicle vibration control system controller,a rotating machine member sensor, for inputting vehicle rotating machine member data correlating to a relative rotation of said rotating machine member rotating relative to said nonrotating body into said vehicle vibration control system controller,at least a first nonrotating vehicle body vibration sensor, said at least first nonrotating vehicle body vibration sensor inputting at least first nonrotating vehicle body vibration sensor data correlating to vehicle vibrations into said vehicle vibration control system controller,at least a first nonrotating vehicle body circular force generator, said at least a first nonrotating vehicle body circular force generator for fixedly mounting to said nonrotating vehicle body wherein said at least first nonrotating vehicle body circular force generator is controlled by said controller to produce a rotating force with a controllable rotating force magnitude and a controllable rotating force phase, said controllable rotating force magnitude controlled from a minimal force magnitude up to a maximum force magnitude, and with said controllable rotating force phase controlled in reference to said vehicle rotating machine member sensor data correlating to said relative rotation of said vehicle rotating machine member rotating relative to said nonrotating vehicle body with said vehicle vibration sensed by said at least first nonrotating vehicle body vibration sensor reduced by said controller. 2. A system, as claimed in claim 1, including n nonrotating vehicle body vibration sensors and m nonrotating vehicle body circular force generators wherein n>m. 3. A system, as claimed in claim 1, wherein said rotating force is controlled to rotate at a harmonic of the rotating machine member rotating speed. 4. A system, as claimed in claim 1, wherein said vehicle vibration control system controller generates a rotating reference signal from said vehicle rotating machine member data correlating to said relative rotation of said vehicle rotating machine member rotating relative to said nonrotating vehicle body. 5. A system, as claimed in claim 1, wherein said vehicle vibration control system controller calculates in reference to a rotating reference signal said rotating force with a real part α and an imaginary part β. 6. A system, as claimed in claim 1, wherein said at least first nonrotating vehicle body circular force generator including at least a first rotating mass (mass1—1) controllably driven about a first rotating mass axis with a first rotating mass controllable rotating imbalance phase Φ1—1 and at least a second corotating mass (mass1—2) controllably driven about a second rotating mass axis with a second rotating mass controllable rotating imbalance phase Φ1—2. 7. A system, as claimed in claim 1, including n nonrotating vehicle body vibration sensors and m nonrotating vehicle body circular force generators, said vehicle vibration control system controller generates a rotating reference signal from said vehicle rotating machine member data correlating to said relative rotation of said vehicle rotating machine member rotating relative to said nonrotating vehicle body,said first nonrotating vehicle body circular force generator including a first rotating mass (mass1—1) controllably driven about a first rotating mass axis with a first rotating mass controllable rotating imbalance phase Φ1—1 and a second corotating mass (mass1—2) controllably driven about a second rotating mass axis with a second rotating mass controllable rotating imbalance phase Φ1—2, said imbalance phase Φ1—1 and said imbalance phase Φ1—2 controlled in reference to said rotating reference signal,said mth nonrotating vehicle body circular force generator including a first rotating mass (massm—1) controllably driven about a first rotating mass axis with a first rotating mass controllable rotating imbalance phase Φm—1 and a second corotating mass (massm—2) controllably driven about a second rotating mass axis with a second rotating mass controllable rotating imbalance phase Φm—2, said imbalance phase Φm—1 and said imbalance phase Φm—2 controlled in reference to said rotating reference signal. 8. A system, as claimed in claim 1, wherein said first nonrotating vehicle body circular force generator includes a first rotating mass (mass1—1) with a first rotating mass controllable rotating imbalance phase Φ1—1 and a second corotating mass (mass1—2) with a second rotating mass controllable rotating imbalance phase Φ1—2. 9. A system, as claimed in claim 8, wherein said first rotating mass (mass1—1) is driven with a first motor and said second corotating mass (mass1—2) is driven with a second motor. 10. A system, as claimed in claim 8, with a detent linking between said first rotating mass (massm—1) and said second corotating mass (massm—2), and a (single) motor for driving said first rotating mass (massm—1), wherein said first rotating mass (massm—1) comprises a master rotating mass (massm—1) with a master rotating mass controllable rotating imbalance phase Φ1—1, and said second corotating mass (massm—2) comprises a slave corotating mass (massm—2) with a slave rotating mass controllable rotating imbalance phase Φ1—2 with said detent controlling said slave rotating mass controllable rotating imbalance phase Φ1—2 relative to said master rotating mass controllable rotating imbalance phase Φ1—1. 11. A system, as claimed in claim 1, including n nonrotating vehicle body vibration sensors and m nonrotating vehicle body circular force generators, with m≧2, said first nonrotating vehicle body circular force generator including a first rotating mass (mass1—1) controllably driven about a first circular force generator axis with a first rotating mass controllable rotating imbalance phase Φ1—1 and a second corotating mass (mass1—2) controllably driven about said first circular force generator axis with a second rotating mass controllable rotating imbalance phase Φ1—2, and a second nonrotating vehicle body circular force generator including a first rotating mass (mass2—1) controllably driven about a second circular force generator axis with a first rotating mass controllable rotating imbalance phase Φ2—1 and a second corotating mass (mass2—2) controllably driven about said second circular force generator axis with a second rotating mass controllable rotating imbalance phase Φ2—2, said second nonrotating vehicle body circular force generator oriented relative to said first nonrotating vehicle body circular force generator wherein said second circular force generator axis is nonparallel with said first circular force generator axis. 12. A system, as claimed in claim 11, wherein m≧3, and including a third nonrotating vehicle body circular force generator including a first rotating mass (mass3—1) controllably driven about a third circular force generator axis with a first rotating mass controllable rotating imbalance phase Φ3—1 and a second corotating mass (mass3—2) controllably driven about said third circular force generator axis with a second rotating mass controllable rotating imbalance phase Φ3—2, said third circular force generator axis oriented relative to said second circular force generator axis and said first circular force generator axis. 13. A system as claimed in claim 1 wherein said vehicle nonrotating vehicle body includes a vehicle ceiling and a distal vehicle floor, said distal vehicle floor below said vehicle ceiling, including n nonrotating vehicle body vibration sensors and m nonrotating vehicle body circular force generators,said vehicle vibration control system controller calculates a rotating reference signal from said vehicle rotating machine member data correlating to said relative rotation of said vehicle rotating machine member rotating relative to said nonrotating vehicle body,said first nonrotating vehicle body circular force generator including a first rotating mass (mass1—1) controllably driven about a first rotating mass axis with a first rotating mass controllable rotating imbalance phase Φ1—1 and a second corotating mass (mass1—2) controllably driven about a second rotating mass axis with a second rotating mass controllable rotating imbalance phase Φ1—2, said imbalance phase Φ1—1 and said imbalance phase Φ1—2 controlled in reference to said rotating reference signal, said first nonrotating vehicle body circular force generator mounted to said vehicle body proximate said vehicle ceiling, andsaid mth nonrotating vehicle body circular force generator including a first rotating mass (massm—1) controllably driven about a first rotating mass axis with a first rotating mass controllable rotating imbalance phase Φm—1 and a second corotating mass (massm—2) controllably driven about a second rotating mass axis with a second rotating mass controllable rotating imbalance phase Φm—2, said imbalance phase Φm—1 and said imbalance phase Φm—2 controlled in reference to said rotating reference signal, said mth nonrotating vehicle body circular force generator mounted to said vehicle body proximate said vehicle floor. 14. A system as claimed in claim 1 wherein said vehicle nonrotating vehicle body includes a vehicle transmission for transmitting rotational power to said rotating machine member, said vehicle vibration control system controller calculates a rotating reference signal from said vehicle rotating machine member data correlating to said relative rotation of said vehicle rotating machine member rotating relative to said nonrotating vehicle body,said first nonrotating vehicle body circular force generator including a first rotating mass (mass1—1) controllably driven about a first rotating mass axis with a first rotating mass controllable rotating imbalance phase Φ1—1 and a second corotating mass (mass1—2) controllably driven about a second rotating mass axis with a second rotating mass controllable rotating imbalance phase Φ1—2, said imbalance phase Φ1—1 and said imbalance phase Φ1—2 controlled in reference to said rotating reference signal, said first nonrotating vehicle body circular force generator mounted to said vehicle transmission. 15. A system as claimed in claim 1 wherein said vehicle rotating machine member is a helicopter rotating rotary wing hub and said nonrotating vehicle body is a helicopter fuselage frame below said helicopter rotating rotary wing hub, and said helicopter rotating rotary wing hub includes hub mounted vibration control system with at least a first hub mounted motor driven hub mass and at least a second hub mounted motor driven hub mass. 16. A system as claimed in claim 1 wherein said circular force generator includes at least a first rotating externally housed cooling fan having a rotation motion for cooling said circular force generator, said cooling fan rotation motion linked with the rotation of said rotating force.
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