Blade made of composite material comprising a damping device
    1.
    发明授权
    Blade made of composite material comprising a damping device 有权
    由复合材料制成的刀片,包括阻尼装置

    公开(公告)号:US08500410B2

    公开(公告)日:2013-08-06

    申请号:US12720226

    申请日:2010-03-09

    IPC分类号: F01D5/16

    摘要: A blade made of composite material including an airfoil formed of filaments or fibers, optionally woven, impregnated with a heat-curable resin, with an intrados wall and an extrados wall between the leading edge and the trailing edge; and a device for damping the vibrations incorporated in one or other of the intrados and extrados walls is disclosed. The damping device is formed of at least one layer made of viscoelastic material and a layer made of rigid material, these layers being superposed. The layer made of rigid material includes a first zone and a second zone. The layer made of viscoelastic material is interposed between the airfoil and the first zone of the rigid layer, and the second zone of the rigid layer is attached to the wall of the airfoil without interposition of viscoelastic material.

    摘要翻译: 由复合材料制成的刀片,其包括由长丝或纤维形成的机翼,任选地编织,浸渍有可热固化的树脂,在前缘和后缘之间具有内壁和外壁; 并且公开了一种用于阻尼结合在一个或另一个内部和外部壁中的振动的装置。 阻尼装置由至少一层由粘弹性材料制成的层和由刚性材料制成的层形成,这些层被重叠。 由刚性材料制成的层包括第一区和第二区。 由粘弹性材料制成的层插入到翼型件和刚性层的第一区之间,刚性层的第二区域连接到翼型件的壁上而不插入粘弹性材料。

    BLADE MADE OF COMPOSITE MATERIAL COMPRISING A DAMPING DEVICE
    2.
    发明申请
    BLADE MADE OF COMPOSITE MATERIAL COMPRISING A DAMPING DEVICE 有权
    包含阻尼装置的复合材料的刀片

    公开(公告)号:US20100232974A1

    公开(公告)日:2010-09-16

    申请号:US12720226

    申请日:2010-03-09

    摘要: The present invention relates to a blade made of composite material (100) comprising an airfoil (100A) formed of filaments or fibers, optionally woven, impregnated with a heat-curable resin, with an intrados wall and an extrados wall between the leading edge and the trailing edge.It is characterized in that a device for damping the vibrations is incorporated in one or other of the intrados and extrados walls, and is formed of at least one layer made of viscoelastic material (111) and a layer made of rigid material (110), these layers being superposed. According to one embodiment, the layer made of rigid material comprises a first zone (1101) and a second zone (1102), the layer made of viscoelastic material (111) being interposed between the airfoil and said first zone (1101) of the rigid layer (110), and said second zone (1102) of the rigid layer being attached to the wall of the airfoil (100A) without interposition of viscoelastic material.The invention relates in particular to a turbomachine blade, such as a fan blade of a turbojet engine or a propeller airfoil of a turboprop engine.

    摘要翻译: 本发明涉及由复合材料(100)制成的叶片,其包括由长丝或纤维形成的翼片(100A),任选地编织,浸渍有可热固化的树脂,其内部壁和外壁在前缘和 后缘。 其特征在于,用于阻尼振动的装置结合在一个或另一个内部和外部壁中,并且由至少一层由粘弹性材料(111)和由刚性材料(110)制成的层形成, 这些层叠加。 根据一个实施例,由刚性材料制成的层包括第一区域(1101)和第二区域(1102),由粘弹性材料(111)制成的层插入在翼型件和刚性的第一区域(1101)之间 所述刚性层的所述第二区(1102)和所述第二区(1102)附接到所述翼型件(100A)的壁而不插入粘弹性材料。 本发明具体涉及涡轮机叶片,例如涡轮喷气发动机的风扇叶片或涡轮螺旋桨发动机的螺旋桨翼型。

    LEVER FOR ROTATING A TURBOMACHINE VARIABLE-PITCH STATOR VANE ABOUT ITS PIVOT
    3.
    发明申请
    LEVER FOR ROTATING A TURBOMACHINE VARIABLE-PITCH STATOR VANE ABOUT ITS PIVOT 有权
    用于旋转涡轮增压器的杠杆可变定位器VANE关于其PIVOT

    公开(公告)号:US20090074569A1

    公开(公告)日:2009-03-19

    申请号:US12207009

    申请日:2008-09-09

    IPC分类号: F04D29/56

    摘要: The present invention relates to a lever for rotating about its pivot a turbomachine variable-pitch stator vane comprising three zones: a first zone for attachment to a lever drive member, a second zone for attachment to said variable-pitch stator vane, and a third zone of elongate shape between the first zone and the second zone, wherein a vibration-damping laminate is applied to at least one surface portion of at least one of said zones of the lever, the laminate comprising at least one layer of viscoelastic material in contact with said surface portion and a backing layer of rigid material.

    摘要翻译: 本发明涉及一种用于围绕其枢轴旋转的杠杆,该涡轮机可变节距定子叶片包括三个区域:用于附接到杆驱动构件的第一区域,用于附接到所述可变节距定子叶片的第二区域,以及第三区域 在所述第一区域和所述第二区域之间的细长形状区域,其中减震层压体被施加到所述杆的至少一个所述区域的至少一个表面部分,所述层压体包括至少一层接触的粘弹性材料层 具有所述表面部分和刚性材料的背衬层。