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    AUTOMATED PLACEMENT OF COMPOSITE MATERIAL
    1.
    发明申请
    AUTOMATED PLACEMENT OF COMPOSITE MATERIAL 审中-公开

    公开(公告)号：US20190315076A1

    公开(公告)日：2019-10-17

    申请号：US15951165

    申请日：2018-04-11

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Sébastien Duval ,  Pascal Flynn-Robitaille

    IPC: B29C70/38 ,  B29C70/20 ,  B29C70/88 ,  B32B5/12 ,  B32B5/26 ,  B32B7/00 ,  B32B7/02 ,  B64C1/06 ,  G06F17/50

    Abstract: Methods and systems for automated placement of composite material on a surface of a component, the composite material including unidirectional fibers, is provided. A set of fiber paths along the surface is established, the set of fiber paths comprising at least one ply, each ply comprising a respective plurality of fiber paths being substantially aligned with a respective direction. An isotropy factor for the component is determined based on the set of fiber paths, the isotropy factor being indicative of a distribution of the plurality of fiber paths on the surface. When the isotropy factor exceeds a predetermined threshold, a respective layer of composite material is applied to the surface of the component using an automated fiber placement machine and for each of the at least one ply, wherein the unidirectional fibers of the composite material are applied along the set of fiber paths.

    Method of operating an automated fiber placement machine
    2.
    发明授权
    Method of operating an automated fiber placement machine 有权

    公开(公告)号：US11167505B2

    公开(公告)日：2021-11-09

    申请号：US15902285

    申请日：2018-02-22

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Sébastien Duval

    IPC: B32B41/00 ,  B29C70/38 ,  B29C64/10 ,  B33Y10/00

    Abstract: A method of operating an automated fiber placement machine including determining an effective length and a steering radius of a localized curved portion of a path and obtaining data including combinations of effective length and steering radius reference values each associated with a corresponding one of maximum speed values. A predetermined defect is avoided when the tape is laid along a curved path characterized by any of the combinations of effective length and steering radius reference values and laid at the corresponding maximum speed value. The method further includes determining a maximum speed based on the maximum speed values of the data in function of a correspondence between the effective length and the steering radius of the curved path and the combinations of effective length and steering radius reference values, selecting a speed for laying the tape being at most the maximum speed, and laying the tape on the surface.

    METHOD OF OPERATING AN AUTOMATED FIBER PLACEMENT MACHINE
    4.
    发明申请
    METHOD OF OPERATING AN AUTOMATED FIBER PLACEMENT MACHINE 审中-公开

    公开(公告)号：US20190255784A1

    公开(公告)日：2019-08-22

    申请号：US15902285

    申请日：2018-02-22

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Sébastien Duval

    IPC: B29C70/38

    Abstract: A method of operating an automated fiber placement machine including determining an effective length and a steering radius of a localized curved portion of a path and obtaining data including combinations of effective length and steering radius reference values each associated with a corresponding one of maximum speed values. A predetermined defect is avoided when the tape is laid along a curved path characterized by any of the combinations of effective length and steering radius reference values and laid at the corresponding maximum speed value. The method further includes determining a maximum speed based on the maximum speed values of the data in function of a correspondence between the effective length and the steering radius of the curved path and the combinations of effective length and steering radius reference values, selecting a speed for laying the tape being at most the maximum speed, and laying the tape on the surface.

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