GB1202340A - Method of making helicopter rotor spars - Google Patents

Method of making helicopter rotor spars

Info

Publication number
GB1202340A
GB1202340A GB6101668A GB6101668A GB1202340A GB 1202340 A GB1202340 A GB 1202340A GB 6101668 A GB6101668 A GB 6101668A GB 6101668 A GB6101668 A GB 6101668A GB 1202340 A GB1202340 A GB 1202340A
Authority
GB
United Kingdom
Prior art keywords
spar
resin
wrapping
spars
helicopter rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6101668A
Inventor
Cornell J Slivinsky
Stanley Steed
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Parsons Corp
Original Assignee
Parsons Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Parsons Corp filed Critical Parsons Corp
Priority to GB6101668A priority Critical patent/GB1202340A/en
Publication of GB1202340A publication Critical patent/GB1202340A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/54—Compensating volume change, e.g. retraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/083—Combinations of continuous fibres or fibrous profiled structures oriented in one direction and reinforcements forming a two dimensional structure, e.g. mats
    • B29C70/085—Combinations of continuous fibres or fibrous profiled structures oriented in one direction and reinforcements forming a two dimensional structure, e.g. mats the structure being deformed in a three dimensional configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • B29C70/865—Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3076—Aircrafts
    • B29L2031/3085—Wings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

1,202,340. Composite spars. PARSONS CORP. 23 Dec., 1968, No. 61016/68. Heading B5A. A composite spar for use in a helicopter rotor blade is produced by wrapping resin-impregnated structural cloth 16 about a metal tube 10-13, with adhesive 15, encompassing the wrapped tube in a filled material, e.g. resinimpregnated fibreglass rovings preshaped to a shape 17 substantially the same as the desired spar cross-section, then wrapping further resinimpregnated structural cloth 21 and finally compression-moulding the upper and lower spar surfaces pressing the outer wrapping intermediate these surfaces with tapering rams while curing the resin, compensating for shrinkage of the resin on curing but maintaining the peripheral length of the outer wrapping. The fibreglass rovings of the " filler material " are preferably aligned longitudinally of the spar.
GB6101668A 1968-12-23 1968-12-23 Method of making helicopter rotor spars Expired GB1202340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6101668A GB1202340A (en) 1968-12-23 1968-12-23 Method of making helicopter rotor spars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6101668A GB1202340A (en) 1968-12-23 1968-12-23 Method of making helicopter rotor spars

Publications (1)

Publication Number Publication Date
GB1202340A true GB1202340A (en) 1970-08-12

Family

ID=10486471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6101668A Expired GB1202340A (en) 1968-12-23 1968-12-23 Method of making helicopter rotor spars

Country Status (1)

Country Link
GB (1) GB1202340A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061567A2 (en) * 1981-04-01 1982-10-06 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Aerodynamic propeller blade and manufacturing process
FR2556650A1 (en) * 1983-12-14 1985-06-21 Matra Process and device for manufacturing hollow structural bodies made from composite material, especially for missiles
EP3406411A4 (en) * 2016-01-20 2019-08-28 IHI Corporation Fiber-reinforced composite member molding device and fiber-reinforced composite member molding method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061567A2 (en) * 1981-04-01 1982-10-06 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Aerodynamic propeller blade and manufacturing process
EP0061567A3 (en) * 1981-04-01 1984-09-26 Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung Aerodynamic propeller blade and manufacturing process
FR2556650A1 (en) * 1983-12-14 1985-06-21 Matra Process and device for manufacturing hollow structural bodies made from composite material, especially for missiles
EP3406411A4 (en) * 2016-01-20 2019-08-28 IHI Corporation Fiber-reinforced composite member molding device and fiber-reinforced composite member molding method

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PE20 Patent expired after termination of 20 years