公开(公告)号：US09533342B1

公开(公告)日：2017-01-03

申请号：US13923795

申请日：2013-06-21

Applicant: The Boeing Company

Inventor： Dennis K. Kennedy

IPC: B21D53/78

CPC classification number: B29C35/02 ,  B29C37/0064 ,  B29K2105/243 ,  B29K2105/246

Abstract: Methods of co-curing aligned annular supports in a tubular region of a composite structure, such as a rotor blade, are disclosed. Methods include assembling an uncured composite structure by positioning an inboard annular support and an outboard annular support around an arbor, forming reinforcement fiber into a tubular region in contact with the supports, and applying a matrix material to the reinforcement fiber. The inboard and outboard annular supports are substantially composed of metal. Methods also include concentrically aligning the arbor and the supports along a common axis by applying heat to cause differential expansion of the arbor with respect to the supports, wherein the differential expansion causes an interference fit of the supports against the arbor. Methods also include curing the uncured composite structure to form the composite structure.

Abstract translation: 公开了在诸如转子叶片的复合结构的管状区域中共同固化对准的环形支撑件的方法。 方法包括通过将内侧环形支撑件和外侧环形支撑件围绕心轴定位而组装未固化复合结构，将增强纤维形成与支撑件接触的管状区域，以及将基质材料施加到增强纤维上。 内侧和外侧环形支撑件基本上由金属组成。 方法还包括通过施加热量以使心轴相对于支撑件发生不同的膨胀而沿着公共轴线同心地对准心轴和支撑件，其中差速膨胀导致支撑件相对于心轴的过盈配合。 方法还包括固化未固化的复合结构以形成复合结构。

公开(公告)号：US20140377073A1

公开(公告)日：2014-12-25

申请号：US13926295

申请日：2013-06-25

Applicant: The Boeing Company

Inventor： Dennis K. Kennedy ,  Zach Keely Stahlecker ,  Saul Opie

IPC: B64C27/32 ,  B64C11/04

CPC classification number: B64C27/48 ,  B64C2027/4736 ,  Y10T29/49826 ,  Y10T403/7075

Abstract: Systems and methods for blade attachment are proved. The systems and methods include an aircraft system having a rotor hub including a blade connector and a composite blade including a lug fitting assembly. The lug fitting assembly includes a fitting core including a lug fitting aperture, a lug bushing coupled within the lug fitting aperture, and an outer fitting substantially surrounding the fitting core.

Abstract translation: 证明了刀片附件的系统和方法。 该系统和方法包括具有转子毂的飞行器系统，转子毂包括叶片连接器和包括凸耳接头组件的复合叶片。 所述凸耳接头组件包括配合芯，所述配合芯包括凸耳配合孔，连接在所述凸耳配件孔内的凸耳衬套和基本上围绕所述配合芯的外部配件。