[특허]Shape memory alloy rods for actuation of continuous surfaces

The Boeing Company

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Shape memory alloy rods for actuation of continuous surfaces

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64C-003/48 B64C-009/02 B64C-007/00 B64C-013/30 B64C-009/00
출원번호	US-0855942 (2013-04-03)
등록번호	US-9174723 (2015-11-03)
발명자 / 주소	Madsen, Casey Lyn
출원인 / 주소	The Boeing Company
대리인 / 주소	Ostrager Chong Flaherty & Broitman P.C.
인용정보	피인용 횟수 : 2 인용 특허 : 16

초록
▼

A system for connecting two relatively movable structures on an aircraft, comprising: a first rigid structure attached to one of the relatively movable rigid structures; a second rigid structure attached to another of the relatively movable structures; a flexible skin connected to the first and second rigid structures; a sleeve comprising first and second end portions; a first rod comprising a first end portion attached to the first rigid structure, a second end portion slidably coupled to the first end portion of the sleeve, and an intermediate portion made of shape memory alloy; a second rod comprising a first end portion attached to the second rigid structure, a second end portion slidably coupled to the second end portion of the sleeve, and an intermediate portion made of shape memory alloy; and means for heating at least the intermediate portions of the first and second rods.

대표
청구항
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1. An assembly for connecting two relatively movable structures on an aircraft, comprising: first and second rigid structures;a flexible skin connected to said first rigid structure and to said second rigid structure;a first rod having a first end portion attached to said first rigid structure, said first rod comprising shape memory alloy in at least an intermediate portion thereof;a sleeve having first and second end portions; anda second rod having a first end portion connected to said second rigid structure, said second rod comprising shape memory alloy in at least an intermediate portion thereof,wherein a second end portion of said first rod is slidably disposed inside said first end portion of said sleeve, and a second end portion of said second rod is slidably disposed inside said second end portion of said sleeve. 2. The assembly as recited in claim 1, wherein said flexible skin is made of elastomeric material, and said first rod is embedded in said elastomeric material. 3. The assembly as recited in claim 1, wherein said flexible skin is made of fabric. 4. The assembly as recited in claim 1, wherein said first rod has a first shape when said intermediate portion of said first rod is heated and a second shape when said intermediate portion of said first rod is cooled, said second shape being different than said first state. 5. A system for connecting two relatively movable structures on an aircraft, comprising: a first rigid structure attached to one of the relatively movable rigid structures;a second rigid structure attached to another of the relatively movable structures;a flexible skin connected to said first and second rigid structures;a sleeve comprising first and second end portions;a first rod comprising a first end portion attached to said first rigid structure, a second end portion slidably disposed inside said first end portion of said sleeve, and an intermediate portion made of shape memory alloy;a second rod comprising a first end portion attached to said second rigid structure, a second end portion slidably disposed inside said second end portion of said sleeve, and an intermediate portion made of shape memory alloy; andmeans for heating at least said intermediate portions of said first and second rods. 6. The system as recited in claim 5, wherein said flexible skin is made of elastomeric material, and said first and second rods and said sleeve are embedded in said elastomeric material. 7. The system as recited in claim 5, wherein said flexible skin is made of fabric. 8. The system as recited in claim 5, wherein said first rod has a first shape when said intermediate portion of said first rod is heated and a second shape when said intermediate portion of said first rod is cooled, said second shape being different than said first state. 9. The system as recited in claim 5, wherein each of said first and second rods has a cross-sectional measurement in a range of 0.1 to 0.5 inch. 10. An aircraft comprising: a first structure comprising a relatively rigid skin;a second structure comprising a relatively rigid skin, at least one of said first and second structures being movable relative to the other; anda connection assembly having a first end connected to said rigid skin of said first structure and a second end connected to said rigid skin of said second structure, said connection assembly comprising a flexible skin, a sleeve comprising first and second end portions, a first rod comprising a first end portion slidably disposed inside said first end portion of said sleeve, and a second rod comprising a first end portion slidably disposed inside said second end portion of said sleeve, wherein each of said first and second rods comprises shape memory alloy,wherein said flexible skin of said connection assembly and said relatively rigid skins of said first and second structures define a continuous surface. 11. The aircraft as recited in claim 10, further comprising a first rod block attached to said first structure and a second rod block attached to said second structure, wherein a first end of said flexible skin and a second end portion of said first rod are attached to said first rod block, and a second end of said flexible skin and a second end portion of said second rod are attached to said second rod block. 12. The aircraft as recited in claim 10, wherein said flexible skin is made of elastomeric material, and said sleeve and said first and second rods are embedded in said elastomeric material. 13. The aircraft as recited in claim 10, wherein first structure is a fixed wing or tail and said second structure is a control surface. 14. The aircraft as recited in claim 10, further comprising at least one heating element that is thermally coupled to an intermediate portion of said first rod. 15. The aircraft as recited in claim 10, wherein said first rod has a first shape when an intermediate portion of said first rod is heated and a second shape when said intermediate portion of said first rod is cooled, said second shape being different than said first state. 16. An aircraft comprising first and second structures and a connection assembly connecting said first and second structures to each other, said connection assembly comprising: a first rod block attached to said first structure;a second rod block attached to said second structure;a flexible skin having one end connected to said first rod block and another end connected to said second rod block; anda plurality of assemblies disposed within or adjacent to said flexible skin, wherein each assembly comprises:a sleeve;a first rod comprising a first portion slidably disposed inside said sleeve, a second portion attached to said first rod block, and a third portion disposed between said first and second portions of said first rod, wherein said third portion of said first rod comprises shape memory alloy trained to produce a two-way memory effect in response to heating and cooling; anda second rod comprising a first portion slidably disposed inside said sleeve, a second portion attached to said second rod block, and a third portion disposed between said first and second portions of said second rod, wherein said third portion of said second rod comprises shape memory alloy trained to produce a two-way memory effect in response to heating and cooling. 17. The aircraft as recited in claim 16, further comprising means for heating the shape memory alloy of said first and second rods. 18. The aircraft as recited in claim 16, wherein said flexible skin comprises a sheet of elastomeric material, said plurality of sleeves and said plurality of first rods being embedded in said sheet of elastomeric material.

이 특허에 인용된 특허 (16)

이 특허를 인용한 특허 피인용횟수: 2

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Shape memory alloy rods for actuation of continuous surfaces

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이 특허에 인용된 특허 (16)

이 특허를 인용한 특허 피인용횟수: 2

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Shape memory alloy rods for actuation of continuous surfaces

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이 특허에 인용된 특허 (16)

이 특허를 인용한 특허 피인용횟수: 2

IPC 상위 출원인

상세정보조회

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IPC 상세정보(version : 201201)

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