公开(公告)号：US11186049B2

公开(公告)日：2021-11-30

申请号：US16110966

申请日：2018-08-23

申请人： The Boeing Company

发明人： Cynthia G. Feng

IPC分类号： B29C65/00 ,  B29C70/54 ,  B29C70/38 ,  B29L31/30 ,  B29K307/04 ,  G06F30/15 ,  B29C65/78

摘要： Systems and methods are provided for designing composite parts. One embodiment is a method for fabricating a composite part. The method includes receiving a design that defines a stacking sequence for a composite charge comprising plies that have different fiber orientations, defining a splice zone within the design, modifying the design by splicing plies in a manner that accommodates ply slippage when the composite charge is formed to a contour, and fabricating a composite part based on the design that was modified.

公开(公告)号：US20200061940A1

公开(公告)日：2020-02-27

申请号：US16110966

申请日：2018-08-23

申请人： The Boeing Company

发明人： Cynthia G. Feng

IPC分类号： B29C70/54 ,  B29C70/38

摘要： Systems and methods are provided for designing composite parts. One embodiment is a method for fabricating a composite part. The method includes receiving a design that defines a stacking sequence for a composite charge comprising plies that have different fiber orientations, defining a splice zone within the design, modifying the design by splicing plies in a manner that accommodates ply slippage when the composite charge is formed to a contour, and fabricating a composite part based on the design that was modified.

公开(公告)号：US11052617B2

公开(公告)日：2021-07-06

申请号：US16178354

申请日：2018-11-01

申请人： The Boeing Company

发明人： Scott M. Spencer ,  Jessica R. Hughes ,  Jae Dong Hwang ,  Joseph L. Sweetin ,  Kanna M. Pham ,  Jaime C. Garcia ,  Gregory P. Freed ,  Frederick T. Calkins ,  Cynthia G. Feng ,  Jiangtian Cheng

IPC分类号： B29C70/38 ,  B29C70/54 ,  B29K307/04

摘要： A method of fabricating a plank stringer for use in an aircraft includes grouping a plurality of stacked plies of reinforcing material into a plurality of charges, where each charge in the plurality of charges includes a substack of plies. The method also includes grouping the plurality of charges into two or more groups such that, for each charge in a given group, a respective substack of plies includes a sequence of orientation angles with respect to a longitudinal axis of the plank stringer corresponding to the given group. The method also includes laying up each group of charges as a continuous blanket of plies, where each continuous blanket of plies includes the respective substack of plies for each charge in the respective group. The method also includes cutting each continuous blanket of plies into the respective group of charges and stacking the plurality of charges to form the plank stringer.