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    NOTCH TREATMENT METHODS FOR FLAW SIMULATION
    1.
    发明申请
    NOTCH TREATMENT METHODS FOR FLAW SIMULATION 审中-公开

    公开(公告)号：US20200025661A1

    公开(公告)日：2020-01-23

    申请号：US16124762

    申请日：2018-09-07

    申请人： Bell Helicopter Textron Inc.

    发明人： Xiaoming Li ,  Bogdan R. Krasnowski ,  Robert A. Figueroa ,  Robert Wardlaw

    IPC分类号： G01N3/62 ,  G06F17/50 ,  G01N3/02

    摘要： A notch treatment method for flaw simulation including providing the specimen with the notch, the notch having a re-melt material layer; isolating the notch; and selectively etching the notch to provide an etched surface of the notch; wherein at least a portion of the re-melt material layer has been removed from the notch. In one aspect, there is provided a notch treatment method for flaw simulation including providing the specimen with the notch, the notch having a re-melt material layer, the specimen includes steel or an alloy thereof; isolating the notch; and selectively etching the notch with a first etching solution and a second etching solution to provide an etched surface on the notch; wherein at least a portion of the re-melt material layer has been removed from the notch.

    Composite Rotor System Using Two Race Track Style Cantilevered Yokes
    2.
    发明申请
    Composite Rotor System Using Two Race Track Style Cantilevered Yokes 有权
    复合转子系统使用两个赛道式悬臂式轭

    公开(公告)号：US20140271222A1

    公开(公告)日：2014-09-18

    申请号：US13801733

    申请日：2013-03-13

    申请人： BELL HELICOPTER TEXTRON INC.

    发明人： Andrew Maresh ,  Frank Bradley Stamps ,  Patrick Ryan Tisdale ,  Robert Wardlaw ,  Andrew Haldeman ,  Drew Sutton

    IPC分类号： B64C27/39

    CPC分类号： B64C27/33 ,  B64C11/02 ,  B64C11/12 ,  B64C27/35 ,  B64C27/48

    摘要： A hub system comprises at least one yoke, at least one shear bearing, and at least one mast adapter. The at least one mast adapter is configured to support the at least one yoke and the at least one shear bearing, and the at least one yoke has a flapping hinge that is non-coincident with a flapping hinge of the at least one shear bearing. Another hub system comprises a stacked yoke and a mast adapter. The mast adapter is configured to transfer rotation from a rotor mast to the hub system to rotate the hub system about a central axis of rotation. The mast adapter is further configured to support the stacked yoke such that each yoke in the stacked yoke is configured to accommodate at least some amount of rotation about an axis that is perpendicular to or about perpendicular to the central axis of rotation.

    摘要翻译： 毂系统包括至少一个轭，至少一个剪切轴承和至少一个桅杆适配器。 所述至少一个桅杆适配器构造成支撑所述至少一个轭和所述至少一个剪切轴承，并且所述至少一个轭具有与所述至少一个剪切轴承的扑动铰链不重合的扑动铰链。 另一个集线器系统包括堆叠的轭和桅杆适配器。 桅杆适配器被配置为将旋转从转子桅杆传递到轮毂系统，以围绕中心旋转轴线旋转轮毂系统。 桅杆适配器还被配置为支撑堆叠的轭架，使得堆叠的轭架中的每个轭架构造成适应围绕垂直于或大致垂直于中心旋转轴线的轴线的至少一定量的旋转。

    METHOD FOR LIMITING INTERLAMINAR FATIGUE IN COMPOSITE LAMINATE AND A COMPONENT INCORPORATING THE SAME
    6.
    发明申请
    METHOD FOR LIMITING INTERLAMINAR FATIGUE IN COMPOSITE LAMINATE AND A COMPONENT INCORPORATING THE SAME 审中-公开
    用于限制复合层压板中的层间疲劳的方法和包含它们的组分

    公开(公告)号：US20160082696A1

    公开(公告)日：2016-03-24

    申请号：US14798658

    申请日：2015-07-14

    申请人： Bell Helicopter Textron Inc.

    发明人： Bogdan Roman Krasnowski ,  Robert Arnold Brack ,  Xiaoming Li ,  Robert Wardlaw

    IPC分类号： B32B7/02 ,  B32B27/08 ,  B32B37/14 ,  B32B27/38

    摘要： In some embodiments, a rotor system for a rotorcraft includes a yoke, a blade, and a grip that is configured to couple the blade to the yoke. The grip has a plurality of baseline layers and a compliant layer. The baseline layers each have a plurality of fibers disposed in a first polymeric matrix. The compliant layer has a plurality of fibers disposed in a second polymeric matrix. The compliant layer is stronger than the baseline layer and the first polymeric matrix has a different chemical composition than the second polymeric matrix.

    摘要翻译： 在一些实施例中，用于旋翼航空器的转子系统包括轭，叶片和被配置成将叶片耦合到轭架的把手。 手柄具有多个基线层和柔顺层。 基线层各自具有设置在第一聚合物基质中的多个纤维。 顺应层具有设置在第二聚合物基质中的多个纤维。 柔顺层比基层更坚固，第一聚合物基质具有不同于第二聚合物基质的化学组成。

    Composite rotor system using two race track style cantilevered yokes
    9.
    发明授权
    Composite rotor system using two race track style cantilevered yokes 有权
    复合转子系统采用两种跑道式悬臂式轭铁

    公开(公告)号：US09505490B2

    公开(公告)日：2016-11-29

    申请号：US13801733

    申请日：2013-03-13

    申请人： Bell Helicopter Textron Inc.

    发明人： Andrew Maresh ,  Frank Bradley Stamps ,  Patrick Ryan Tisdale ,  Robert Wardlaw ,  Andrew Haldeman ,  Drew Sutton

    IPC分类号： B64C27/35 ,  B64C27/48 ,  B64C27/33

    CPC分类号： B64C27/33 ,  B64C11/02 ,  B64C11/12 ,  B64C27/35 ,  B64C27/48

    摘要： A hub system comprises at least one yoke, at least one shear bearing, and at least one mast adapter. The at least one mast adapter is configured to support the at least one yoke and the at least one shear bearing, and the at least one yoke has a flapping hinge that is non-coincident with a flapping hinge of the at least one shear bearing. Another hub system comprises a stacked yoke and a mast adapter. The mast adapter is configured to transfer rotation from a rotor mast to the hub system to rotate the hub system about a central axis of rotation. The mast adapter is further configured to support the stacked yoke such that each yoke in the stacked yoke is configured to accommodate at least some amount of rotation about an axis that is perpendicular to or about perpendicular to the central axis of rotation.

    摘要翻译： 毂系统包括至少一个轭，至少一个剪切轴承和至少一个桅杆适配器。 所述至少一个桅杆适配器构造成支撑所述至少一个轭和所述至少一个剪切轴承，并且所述至少一个轭具有与所述至少一个剪切轴承的扑动铰链不重合的扑动铰链。 另一个集线器系统包括堆叠的轭和桅杆适配器。 桅杆适配器被配置为将旋转从转子桅杆传递到轮毂系统，以围绕中心旋转轴线旋转轮毂系统。 桅杆适配器还被配置为支撑堆叠的轭架，使得堆叠的轭架中的每个轭架构造成适应围绕垂直于或大致垂直于中心旋转轴线的轴线的至少一定量的旋转。