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    INNER BARREL OF AN ENGINE INLET WITH LASER-MACHINED ACOUSTIC PERFORATIONS
    5.
    发明申请
    INNER BARREL OF AN ENGINE INLET WITH LASER-MACHINED ACOUSTIC PERFORATIONS 有权

    公开(公告)号：US20210291302A1

    公开(公告)日：2021-09-23

    申请号：US17343383

    申请日：2021-06-09

    申请人： THE BOEING COMPANY

    发明人： Jake Adam Reeves ,  Mark Alan Negley ,  Eric Herrera ,  John Scott Bauman ,  Brandon L. Bertolucci ,  Perry T. Horst

    IPC分类号： B23K26/382 ,  F02C7/045

    摘要： A forming system includes a femtosecond laser and a control unit that includes one or more processors operatively connected to the femtosecond laser. The femtosecond laser is configured to emit laser pulses onto an inner surface of a face sheet of an acoustic inner barrel. The acoustic inner barrel includes an acoustic core comprising an array of hexagonal cells attached to an outer surface of the face sheet that is opposite the inner surface. The control unit is configured to control the femtosecond laser to laser drill a plurality of perforations in the face sheet via emitting laser pulses at pulse durations between about 100 femtoseconds and about 10,000 femtoseconds and at frequencies over 100,000 Hz.

    Fused porogen process for acoustic septa fabrication
    6.
    发明授权
    Fused porogen process for acoustic septa fabrication 有权

    公开(公告)号：US10661883B2

    公开(公告)日：2020-05-26

    申请号：US16415366

    申请日：2019-05-17

    申请人： The Boeing Company

    发明人： Erin E. Stache ,  Eric Herrera ,  Larken E. Cumberland ,  Shahriar Alam ,  Christopher S. Roper ,  Geoffrey McKnight

    IPC分类号： E04C2/36 ,  B32B3/12 ,  B29D24/00 ,  F02C7/24 ,  B29C33/52 ,  B64C1/40 ,  F02C7/045 ,  G10K11/168 ,  G10K11/172

    摘要： An example method for manufacturing a multicellular structure for acoustic damping is described that includes applying a porogen material to a solid support, inserting a multicellular frame into the solid support and through the porogen material so as to fill cells of the multicellular frame with the porogen material, fusing the porogen material, removing the multicellular frame from the solid support, and the multicellular frame contains a suspended fused porogen network attached to walls of the cells of the multicellular frame. The method also includes applying a solution to the suspended fused porogen network in the cells of the multicellular frame to percolate the suspended fused porogen network, curing the solution, and removing the suspended fused porogen network from the multicellular frame resulting in porous septum membranes of the cured solution in cells of the multicellular frame.

    Fused Porogen Process for Acoustic Septa Fabrication
    7.
    发明申请
    Fused Porogen Process for Acoustic Septa Fabrication 审中-公开
    用于隔声制造的熔融致孔工艺

    公开(公告)号：US20160264231A1

    公开(公告)日：2016-09-15

    申请号：US14641537

    申请日：2015-03-09

    申请人： The Boeing Company

    发明人： Erin E. Stache ,  Eric Herrera ,  Larken E. Cumberland ,  Shahriar Alam ,  Christopher S. Roper ,  Geoffrey McKnight

    IPC分类号： B64C1/40 ,  B64C1/06 ,  G10K11/16

    CPC分类号： B64C1/40 ,  B29C33/52 ,  B29D24/005 ,  B32B3/12 ,  E04C2/365 ,  F02C7/045 ,  F02C7/24 ,  G10K11/168 ,  G10K11/172

    摘要： An example method for manufacturing a multicellular structure for acoustic damping is described that includes applying a porogen material to a solid support, inserting a multicellular frame into the solid support and through the porogen material so as to fill cells of the multicellular frame with the porogen material, fusing the porogen material, removing the multicellular frame from the solid support, and the multicellular frame contains a suspended fused porogen network attached to walls of the cells of the multicellular frame. The method also includes applying a solution to the suspended fused porogen network in the cells of the multicellular frame to percolate the suspended fused porogen network, curing the solution, and removing the suspended fused porogen network from the multicellular frame resulting in porous septum membranes of the cured solution in cells of the multicellular frame.

    摘要翻译： 描述了一种用于制造用于声阻尼的多细胞结构的示例性方法，其包括将致孔剂材料施加到固体支持物上，将多细胞框架插入固体支持物并通过致孔剂材料，以便用致孔剂材料填充多细胞框架的细胞 融合致孔剂材料，从固体支持物上除去多细胞骨架，多细胞框架包含连接到多细胞骨架细胞壁的悬浮的融合致孔剂网络。 该方法还包括在多细胞框架的细胞中向悬浮的稠合致孔剂网络施加溶液以渗出悬浮的稠合致孔剂网络，固化溶液，以及从多细胞框架移除悬浮的稠合致孔剂网络，从而产生多孔隔膜 多细胞骨架细胞中的固化溶液。

    Acoustic paneling
    8.
    发明授权
    Acoustic paneling 有权

    公开(公告)号：US10443496B2

    公开(公告)日：2019-10-15

    申请号：US15212454

    申请日：2016-07-18

    申请人： The Boeing Company

    发明人： Eric Herrera ,  Marta Baginska Elleby ,  Garry Duschl

    IPC分类号： F02C7/045 ,  F02C7/24 ,  G10K11/172 ,  B64D33/02 ,  B32B27/06 ,  B29D24/00 ,  B32B37/14 ,  B29C70/88 ,  B29D99/00 ,  G10K11/16

    摘要： Systems and methods are provided for acoustic paneling. One embodiment is a method for fabricating an acoustic panel. The method includes receiving a sheet of thermoplastic paper, stamping/conforming the sheet into rows that each comprise a three dimensional shape, and transforming the sheet into a multi-celled core. Transforming the sheet includes identifying fold lines separating the rows, folding the sheet at the fold lines in a pleat fold, thereby uniting upper surfaces of adjacent rows and uniting lower surfaces of adjacent rows; and compressing the rows of the folded sheet together in the presence of heat, causing adjacent rows to fuse together into cells. The method further includes applying a backing sheet to the core, and applying a facesheet to a surface of the core that includes openings which direct a portion of airflow across the facesheet into the cells, resulting in acoustic control.

    Fused Porogen Process for Acoustic Septa Fabrication
    9.
    发明申请
    Fused Porogen Process for Acoustic Septa Fabrication 审中-公开

    公开(公告)号：US20190270507A1

    公开(公告)日：2019-09-05

    申请号：US16415366

    申请日：2019-05-17

    申请人： The Boeing Company

    发明人： Erin E. Stache ,  Eric Herrera ,  Larken E. Cumberland ,  Shahriar Alam ,  Christopher S. Roper ,  Geoffrey McKnight

    IPC分类号： B64C1/40 ,  G10K11/172 ,  G10K11/168 ,  B29C33/52 ,  B29D24/00 ,  F02C7/045 ,  F02C7/24 ,  E04C2/36 ,  B32B3/12

    摘要： An example method for manufacturing a multicellular structure for acoustic damping is described that includes applying a porogen material to a solid support, inserting a multicellular frame into the solid support and through the porogen material so as to fill cells of the multicellular frame with the porogen material, fusing the porogen material, removing the multicellular frame from the solid support, and the multicellular frame contains a suspended fused porogen network attached to walls of the cells of the multicellular frame. The method also includes applying a solution to the suspended fused porogen network in the cells of the multicellular frame to percolate the suspended fused porogen network, curing the solution, and removing the suspended fused porogen network from the multicellular frame resulting in porous septum membranes of the cured solution in cells of the multicellular frame.