[특허]Multi-degree of freedom magnetorheological devices and system for using same

Multi-degree of freedom magnetorheological devices and system for using same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16F-009/04
출원번호	US-0423586 (1995-04-17)
발명자 / 주소	Carlson J. David (Cary NC)
출원인 / 주소	Lord Corporation (Erie PA 02)
인용정보	피인용 횟수 : 117 인용 특허 : 0

초록 ▼

A semi-active device 20 is provided for damping motion between structures having multi-degrees of freedom. A magnetic field produced by a permanent magnet, a coil, or a combination thereof, change the rheological properties of an MR fluid 40 to effectively lock up the components and the structures to which they are attached to serve as a brake or damper of the associated compound motion. A system 21 employing the MR devices 20 includes a motion detection sensor 15 and a controller 19 to actuate the MR devices 20 when a predetermined motion threshold is exceeded.

대표청구항 ▼

A magnetorheological device for installation between two structures which have the capacity for relative movement which includes up to six degrees of freedom, said device comprising: a) a first generally cylindrical metallic element having a first longitudinal axis and a first pair of orthogonal lateral axes, said first cylindrical element including means to secure said first cylindrical element to a first one of said two structures and; a magnetic core element which has a first radially extending reaction surface positioned inwardly from said first generally cylindrical metallic element; b) a second generally cylindrical metallic element having a longitudinal axis aligned with said first longitudinal axis and a pair of orthogonal lateral axes coincident, said second with said first or generally element including means to secure said second generally cylindrical, element to a second one of said two structures and; a plate-shaped magnetic member having a second radially extending reaction surface opposing said first radially extending reaction surface; c) an elastomeric member secured to each of said first and second generally cylindrical elements and permitting relative movement between said first and second generally cylindrical elements, said first and second generally cylindrical elements primary relative movement being translational movement along said longitudinal axes, said first and second generally cylindrical elements having secondary relative movement in at least one additional direction including translational movement along at least one of said two orthogonal axes and rotational movement about any one of three axes including said longitudinal axis and said two orthogonal lateral axes; d) a fluid chamber at least partially defined by each of said first and second generally cylindrical elements and by said elastomeric member; e) a volume of magnetorheological fluid contained within said fluid chamber; f) a magnetic element for altering a property of said magnetorheological fluid so as to increase a resistance force to, and thereby damp, movement of said first generally cylindrical metallic element relative to said second generally cylindrical metallic element permitted by said elastomeric member; whereby said relative movement between said two structures can be effectively damped, damping being most effective for said primary movement with a lesser degree of damping for said secondary movement.

이 특허를 인용한 특허 (117)

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Hillman,Michael D.; Tsai,Frank; McBroom,Michael D.; McBroom,Daniel L.; Sudderth,Brian T.; Andre,Bartley K.; Stringer,Christopher; Riccio,Daniel; Kim,Sung, Computer controlled display device.
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Hillman,Michael D.; Tsai,Frank; McBroom,Michael D.; McBroom,Daniel L.; Sudderth,Brian T.; Andre,Bartley K.; Stringer,Christopher; Riccio,Daniel; Kim,Sung; Jue,Cliff; Barber,Theodore W.; Sun,Rickson; , Computer controlled display device.
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Hillman,Michael D.; Tsai,Frank; McBroom,Michael D.; McBroom,Daniel L.; Sudderth,Brian T.; Andre,Bartley K.; Stringer,Christopher; Riccio,Daniel; Kim,Sung; Jue,Clifford; White,Bryan Thomas, Computer controlled display device.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Multi-degree of freedom magnetorheological devices and system for using same 원문보기

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Multi-degree of freedom magnetorheological devices and system for using same 원문보기

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