KR100726201B1 - 복합체 굴곡 부재용의 보호 엣지 부재 - Google Patents

복합체 굴곡 부재용의 보호 엣지 부재 Download PDF

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Publication number
KR100726201B1
KR100726201B1 KR1020000056687A KR20000056687A KR100726201B1 KR 100726201 B1 KR100726201 B1 KR 100726201B1 KR 1020000056687 A KR1020000056687 A KR 1020000056687A KR 20000056687 A KR20000056687 A KR 20000056687A KR 100726201 B1 KR100726201 B1 KR 100726201B1
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South Korea
Prior art keywords
composite
ply
innermost
exposed edge
edge surface
Prior art date
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Expired - Lifetime
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KR1020000056687A
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English (en)
Korean (ko)
Other versions
KR20010050665A (ko
Inventor
브라크로버트아놀드
파웰어니스트알프레드
레드디다람지텐더
라이스로날드딘
티스달패트릭얀
Original Assignee
벨 헬리콥터 텍스트론 인크.
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Publication of KR20010050665A publication Critical patent/KR20010050665A/ko
Application granted granted Critical
Publication of KR100726201B1 publication Critical patent/KR100726201B1/ko
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/33—Rotors having flexing arms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49318—Repairing or disassembling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49336—Blade making
    • Y10T29/49337—Composite blade
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • Y10T428/24785—Edge feature including layer embodying mechanically interengaged strands, strand portions or strand-like strips [e.g., weave, knit, etc.]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Laminated Bodies (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Golf Clubs (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
KR1020000056687A 1999-09-28 2000-09-27 복합체 굴곡 부재용의 보호 엣지 부재 Expired - Lifetime KR100726201B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US407,691 1999-09-28
US09/407,691 US6375426B1 (en) 1999-09-28 1999-09-28 Protective edge members for composite flexures

Publications (2)

Publication Number Publication Date
KR20010050665A KR20010050665A (ko) 2001-06-15
KR100726201B1 true KR100726201B1 (ko) 2007-06-11

Family

ID=23613135

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020000056687A Expired - Lifetime KR100726201B1 (ko) 1999-09-28 2000-09-27 복합체 굴곡 부재용의 보호 엣지 부재

Country Status (6)

Country Link
US (1) US6375426B1 (enExample)
EP (1) EP1088754B1 (enExample)
JP (1) JP2001122195A (enExample)
KR (1) KR100726201B1 (enExample)
CA (1) CA2320606C (enExample)
DE (2) DE60001784T2 (enExample)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6708921B2 (en) * 2001-04-20 2004-03-23 Bell Helicopter Textron, Inc. Composite flapping flexure
US6581365B1 (en) * 2001-12-07 2003-06-24 Harris Corporation Controlling thermally induced beam twist
DE10348981B4 (de) * 2003-10-22 2009-04-09 Eurocopter Deutschland Gmbh Rotor, insbesondere für ein Drehflugzeug
KR100600595B1 (ko) * 2005-06-01 2006-07-13 동아전기부품 주식회사 프리히터용 방열부
FR2893914B1 (fr) 2005-11-29 2008-05-23 Eurocopter France Protection antichoc d'une piece mecanique.
EP2279943A4 (en) * 2008-04-21 2012-05-09 Boris Andreevich Polovinkin VERTICAL AND LANDING TILT
US10059438B2 (en) * 2011-12-26 2018-08-28 Textron Innovations Inc. Hub assembly with grease lubricated roller bearing and tension-torsion strap
CN102795338B (zh) * 2012-07-27 2014-10-08 北京卫星制造厂 一种微小型无人机碳纤维旋翼的制备方法
EP2772430B1 (en) * 2013-02-27 2016-06-29 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Partly cruciform flexbeam and method of manufacturing such a flexbeam
EP2783981B1 (en) 2013-03-28 2017-03-15 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Bar of composite matrix material
US9499262B2 (en) 2013-08-02 2016-11-22 Bell Helicopter Textron Inc. Composite flexure for tiltrotor rotor system
EP3038909B1 (en) * 2013-08-28 2019-05-08 Sikorsky Aircraft Corporation Rotor hub for rotary wing aircraft
EP2883790B1 (en) 2013-12-10 2017-11-22 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Beam for a rotorcraft rotor and rotorcraft rotor
EP2899121B1 (en) 2014-01-22 2016-11-16 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Flexbeam unit for a bearingless or a hinge- and bearingless multi-blade rotor of a rotary wing aircraft
US11001375B2 (en) * 2019-03-18 2021-05-11 The Boeing Company Structurally tunable cores
CN112550669B (zh) * 2020-12-11 2023-06-27 中国直升机设计研究所 一种跷跷板式无轴承尾桨毂及直升机尾桨

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898515A (en) * 1986-07-23 1990-02-06 United Technologies Corporation External wrap of composite flexbeam
US5431538A (en) * 1993-07-01 1995-07-11 United Technologies Corporation Hybrid composite flexbeam for a helicopter bearingless main rotor assembly

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189283A (en) 1978-07-12 1980-02-19 The United States Of America As Represented By The Secretary Of The Navy Rotor hub for a helicopter
US4293276A (en) * 1978-10-27 1981-10-06 Textron Inc. Laminated composite rotor yoke
US4466774A (en) 1982-08-30 1984-08-21 United Technologies Corporation Composite flexbeam joint
US4966802A (en) 1985-05-10 1990-10-30 The Boeing Company Composites made of fiber reinforced resin elements joined by adhesive
US4746272A (en) * 1986-07-23 1988-05-24 United Technologies Corporation Lobed composite flexbeam
US4818179A (en) 1987-07-30 1989-04-04 United Technologies Corporation Composite helicopter rotor hub
CA2069125A1 (en) 1991-07-01 1993-01-02 Gary J. Jacaruso Composite forming tool
TW244340B (enExample) 1992-07-21 1995-04-01 Akzo Nv
US5690474A (en) * 1996-07-18 1997-11-25 Sikorsky Aircraft Corporation Optimized composite flexbeam for helicopter tail rotors
US5820344A (en) * 1997-06-27 1998-10-13 Mcdonnell Douglas Corporation Contoured flexure strap for helicopter rotor system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898515A (en) * 1986-07-23 1990-02-06 United Technologies Corporation External wrap of composite flexbeam
US5431538A (en) * 1993-07-01 1995-07-11 United Technologies Corporation Hybrid composite flexbeam for a helicopter bearingless main rotor assembly

Also Published As

Publication number Publication date
DE60001784T2 (de) 2003-12-04
EP1088754A2 (en) 2001-04-04
DE1088754T1 (de) 2001-10-11
EP1088754B1 (en) 2003-03-26
EP1088754A3 (en) 2002-04-03
DE60001784D1 (de) 2003-04-30
CA2320606C (en) 2009-02-24
JP2001122195A (ja) 2001-05-08
US6375426B1 (en) 2002-04-23
CA2320606A1 (en) 2001-03-28
KR20010050665A (ko) 2001-06-15

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