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    2.
    发明专利
    未知

    公开(公告)号：BR102012023612A2

    公开(公告)日：2014-12-09

    申请号：BR102012023612

    申请日：2012-09-19

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： OLDROYD PAUL ,  HETHCOCK JAMES DONN ,  FEWS ROBERT CLIVE

    IPC: B32B3/06 ,  B32B37/02 ,  B32B37/06 ,  B32B37/12 ,  B64C1/00

    Abstract: The shear bonding method of the present application is configured to facilitate bonding of structures in an out-of-autoclave environment. The shear bonding method is configured to bond a plurality of frame members to the interior of a tapered tailboom (103). The frames (113a-113f) are located on a bayonet type tool (701). An adhesive pack (501) having a plurality of adhesive film layers is applied to each frame. The bayonet type tool (701) is inserted into the tailboom until the adhesive packs (501) come into contact with the interior walls of the tailboom. Conductive heating tiles (317a-317d) are applied to the exterior of the tailboom. The conductive heating tiles are controlled to first achieve and maintain viscosity of the adhesive packs. During this period the bayonet tool (701) is actuated so that the frames (113) are translated in relation to the tailboom. The heating tiles (317) are then controlled to achieve and maintain the adhesive at a requisite curing temperature.

    METHOD AND APPARATUS FOR OUT-OF-AUTOCLAVE ADHESIVE SHEAR BONDING OF STRUCTURES
    3.
    发明专利
    METHOD AND APPARATUS FOR OUT-OF-AUTOCLAVE ADHESIVE SHEAR BONDING OF STRUCTURES 未知

    公开(公告)号：CA2788205C

    公开(公告)日：2014-07-29

    申请号：CA2788205

    申请日：2012-08-29

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： OLDROYD PAUL ,  HETHCOCK JAMES DONN ,  FEWS ROBERT CLIVE

    IPC: C09J5/06 ,  B64C1/12

    Abstract: The shear bonding method of the present application is configured to facilitate bonding of structures in an out-of-autoclave environment. The shear bonding method is configured to bond a plurality of frame members to the interior of a tapered tailboom. The frames are located on a bayonet type tool. An adhesive pack having at least one adhesive layer is applied to the faying surfaces of each frame. The bayonet type tool is inserted into the tailboom until the adhesive packs come into contact with the interior walls of the tailboom. Conductive heating tiles are applied to the exterior of the tailboom. The conductive heating tiles are controlled to first achieve and maintain viscosity of the adhesive packs. During this period the bayonet tool is actuated so that the frames are translated in relation to the tailboom, thereby smearing the viscous adhesive and creating positive mechanical pressure at the bondline until the frames are located in the final position. The heating tiles are then controlled to achieve and maintain the adhesive at a requisite curing temperature.

    COMPOSITE CORE AND METHOD OF MAKING SAME
    6.
    发明专利
    COMPOSITE CORE AND METHOD OF MAKING SAME 未知

    公开(公告)号：CA2786737C

    公开(公告)日：2016-04-19

    申请号：CA2786737

    申请日：2011-02-04

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： HETHCOCK JAMES D ,  NUNN KENNETH E ,  OLDROYD PAUL

    IPC: B32B3/12 ,  B29C33/76 ,  B29C70/06 ,  B29D23/00 ,  B32B7/12

    Abstract: A composite core includes a plurality of tubes, each the plurality of tubes comprising a plurality of fibers disposed in a polymeric matrix. Adjacent tubes of the plurality of tubes are adhesively bonded to one another along sides of the adjacent tubes. A method of making a composite core includes the steps of providing a plurality of tubes, each of the plurality of tubes including a plurality of fibers disposed in a polymeric matrix, and adhesively bonding adjacent tubes of the plurality of tubes along sides of the adjacent tubes. A method of making a composite core such that a removable band is included in the core, the removable band being configured to be removable through a procedure subsequent to the cure of the composite core, thereby producing gaps in the core.

    OPTIMIZED CORE FOR A STRUCTURAL ASSEMBLY
    7.
    发明专利
    OPTIMIZED CORE FOR A STRUCTURAL ASSEMBLY 未知

    公开(公告)号：CA2803434C

    公开(公告)日：2015-04-07

    申请号：CA2803434

    申请日：2013-01-24

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： LEE WEI-YUEH ,  OLDROYD PAUL

    IPC: B32B3/12 ,  B64C1/00 ,  B64C3/20 ,  B64C11/20 ,  B64C11/26 ,  B64C27/473

    Abstract: The present application relates a core member for a core-stiffened structural assembly. The core member includes a plurality of cell members oriented a direction to provide a tailored stiffness in a certain direction. The core member can further include one or more planar members that can aid in shear transfer between cell members. The cell members can be made from bonding a plurality of corrugated layers together. The core-stiffened structure can be a rotor blade for an aircraft. In such an embodiment, the torsional stiffness of the rotor blade can be tailored in at least one of the chordwise and spanwise directions to provide tailor a torsional stiffness at any give location in the rotor blade.

    METHOD AND APPARATUS FOR OUT-OF-AUTOCLAVE ADHESIVE SHEAR BONDING OF STRUCTURES
    8.
    发明专利
    METHOD AND APPARATUS FOR OUT-OF-AUTOCLAVE ADHESIVE SHEAR BONDING OF STRUCTURES 未知

    公开(公告)号：CA2788205A1

    公开(公告)日：2013-04-13

    申请号：CA2788205

    申请日：2012-08-29

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： OLDROYD PAUL ,  HETHCOCK JAMES DONN ,  FEWS ROBERT CLIVE

    IPC: C09J5/06 ,  B64C1/12

    Abstract: The shear bonding method of the present application is configured to facilitate bonding of structures in an out-of-autoclave environment. The shear bonding method is configured to bond a plurality of frame members to the interior of a tapered tailboom. The frames are located on a bayonet type tool. An adhesive pack having a plurality of adhesive film layers is applied to the faying surfaces of each frame. The bayonet type tool is inserted into the tailboom until the adhesive packs come into contact with the interior walls of the tailboom. Conductive heating tiles are applied to the exterior of the tailboom. The conductive heating tiles are controlled to first achieve and maintain viscosity of the adhesive packs. During this period the bayonet tool is actuated so that the frames are translated in relation to the tailboom, thereby smearing the viscous adhesive and creating positive mechanical pressure at the bondline until the frames are located in the final position. The heating tiles are then controlled to achieve and maintain the adhesive at a requisite curing temperature.

    METHOD OF MACHINING A THIN-WALLED STRUCTURE
    10.
    发明专利
    METHOD OF MACHINING A THIN-WALLED STRUCTURE 未知

    公开(公告)号：CA2846010C

    公开(公告)日：2018-01-02

    申请号：CA2846010

    申请日：2014-03-12

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： HETHCOCK JAMES DONN ,  WOLTHUIS SCOTT ,  BRACK ROBERT ,  OLDROYD PAUL

    IPC: B21D47/00 ,  B23P15/00 ,  B32B3/12

    Abstract: A method of manipulating a thin-walled structure includes providing a thin-walled structure in a first unconstrained configuration, constraining the thin-walled structure to a first constrained configuration in which a first feature of the thin-walled structure is spatially located relative to the a second feature of the thin-walled structure in a predetermined manner, wherein an open volume of the thin-walled structure is constrained to maintain a predetermined open volume shape, and machining the thin-walled structure to a second constrained configuration in which the first feature of the thin-walled structure remains spatially located relative to the second feature of the thin-walled structure in the predetermined manner.

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