Magneto-rheologic damper for electromechanical actuator
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02K-009/80
F16F-009/53
F16F-015/00
출원번호
US-0997949
(2016-01-18)
등록번호
US-9926886
(2018-03-27)
발명자
/ 주소
Himmelmann, Richard A.
출원인 / 주소
HAMILTON SUNDSTRAND CORPORATION
대리인 / 주소
Cantor Colburn LLP
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
A thrust vector control actuator is provided including a ram first portion, a ram second portion, the ram second portion housed within the ram first portion and defining a damper cavity between the ram first portion and the ram second portion and the ram second portion configured to operably connect
A thrust vector control actuator is provided including a ram first portion, a ram second portion, the ram second portion housed within the ram first portion and defining a damper cavity between the ram first portion and the ram second portion and the ram second portion configured to operably connect to an output link, and a magneto-rheologic fluid located within the damper cavity, the magneto-rheologic fluid configured to rigidly connect the ram first portion and the ram second portion in a first state, the magneto-rheologic fluid being solid in the first state, and a second state wherein the ram second portion is moveable relative to the ram first portion and the magneto-rheologic fluid is at least partially liquefied.
대표청구항▼
1. A thrust vector control actuator comprising: a ram first portion;a ram second portion, the ram second portion housed within the ram first portion and defining a damper cavity between the ram first portion and the ram second portion and the ram second portion configured to operably connect to an o
1. A thrust vector control actuator comprising: a ram first portion;a ram second portion, the ram second portion housed within the ram first portion and defining a damper cavity between the ram first portion and the ram second portion and the ram second portion configured to operably connect to an output link; anda magneto-rheologic fluid located within the damper cavity, the magneto-rheologic fluid configured to rigidly connect the ram first portion and the ram second portion in a first state, the magneto-rheologic fluid being solid in the first state, and a second state wherein the ram second portion is moveable relative to the ram first portion and the magneto-rheologic fluid is at least partially liquefied. 2. The thrust vector control actuator of claim 1, further comprising a housing configured to house the ram first portion and the ram second portion. 3. The thrust vector control actuator of claim 1, further comprising a magnetic field generator controllable to apply a magnetic field to the magneto-rheologic fluid. 4. The thrust vector control actuator of claim 1, further comprising: an output link operably connected to the ram second portion; anda load sensor operably connected to the output link, the load sensor configured to detect a transient force event. 5. The thrust vector control actuator of claim 1, further comprising a damper plate located within the damper cavity, the damper plate having at least one aperture configured to permit the magneto-rheologic fluid to flow through the at least one aperture, when in the second state. 6. The thrust vector control actuator of claim 5, wherein the damper plate is rigidly connected to the second ram portion. 7. The thrust vector control actuator of claim 1, further comprising a drive motor assembly operably connected to the first ram portion. 8. A method of manufacturing a thrust vector control actuator comprising: installing a ram first portion into a housing;installing a ram second portion into the housing, the ram second portion housed within the ram first portion and defining a damper cavity between the ram first portion and the ram second portion;filling the damper cavity with a magneto-rheologic fluid, the magneto-rheologic fluid configured to rigidly connect the ram first portion and the ram second portion in a first state, the magneto-rheologic fluid being solid in the first state, and a second state wherein the ram second portion is moveable relative to the ram first portion and the magneto-rheologic fluid is at least partially liquefied; andoperably connecting the ram second portion to an output link. 9. The method of claim 8, further comprising installing a magnetic field generator into the housing, the magnetic field generator controllable to apply a magnetic field to the magneto-rheologic fluid. 10. The method of claim 8, further comprising operably connecting a load sensor to the output link, the load sensor configured to detect a transient force event. 11. The method of claim 8, further comprising installing a damper plate within the damper cavity, the damper plate having at least one aperture configured to permit the magneto-rheologic fluid to flow through the at least one aperture when in a liquid state. 12. The method of claim 11, wherein the damper plate is rigidly connected to the second ram portion. 13. The method of claim 8, further comprising operably connecting a drive motor assembly operably to the first ram portion. 14. A method of operating a thrust vector control actuator comprising: detecting a transient force event;controlling a magnetic field to liquefy a magneto-rheologic fluid located within a damper cavity, wherein a ram second portion is movable relative to a ram first portion;detecting the transient force event has ended; andcontrolling the magnetic field to solidify the magneto-rheologic fluid within the damper cavity to rigidly connect the ram second portion to the ram first portion. 15. The method of claim 14, wherein the magnetic field is controlled by an application of a current. 16. The method of claim 14, wherein the transient force event is detected by a load sensor. 17. The method of claim 14, further comprising driving the ram first portion with a drive motor assembly.
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이 특허에 인용된 특허 (5)
Larsen Richard K. (Lahambra CA), Actuation system with passive compensation for transient loads.
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