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2. 发明申请

US20160090177A1 METHODS AND APPARATUS TO CONTROL PITCH AND TWIST OF BLADES 审中-公开
标题翻译：控制叶片和叶片的方法和装置
公开(公告)号：US20160090177A1
公开(公告)日：2016-03-31
申请号：US14502655
申请日：2014-09-30
申请人： The Boeing Company
发明人： Ian M. Gunter , Thomas R. Kenow , Chris Jorgens
IPC分类号： B64C27/59
CPC分类号： B64C27/72 , B64C27/605 , B64C2027/7244 , B64C2027/7255 , Y02T50/34
摘要： Methods and apparatus to control pitch and twist of blades are disclosed. An example apparatus includes a twist input assembly driven by a drive shaft that drives a rotation of blades of a rotorcraft, the twist input assembly comprising a twist shaft, a first gear set driven by the drive shaft, and a first frequency controller to create a first rotational speed difference between a first gear of the first gear set and the drive shaft, the first rotational speed difference to cause the twist shaft to oscillate. The examples apparatus includes a pitch input assembly driven by the drive shaft, the pitch input assembly comprising a pitch link in communication with a first one of the blades of the rotorcraft, a second gear set driven by the drive shaft, and a second frequency controller to create a second rotational speed difference between a second gear of the second gear set and the drive shaft, the second rotational speed difference to cause the pitch link to oscillate.
摘要翻译：公开了用于控制叶片的俯仰和扭转的方法和装置。一个示例性装置包括由驱动旋转飞轮的叶片旋转的驱动轴驱动的扭转输入组件，扭转输入组件包括扭转轴，由驱动轴驱动的第一齿轮组，以及第一频率控制器，第一齿轮组的第一齿轮与驱动轴之间的第一转速差，第一转速差导致扭转轴摆动。示例装置包括由驱动轴驱动的桨距输入组件，桨距输入组件包括与旋翼飞机的第一叶片连通的俯仰杆，由驱动轴驱动的第二齿轮组和第二频率控制器以在第二齿轮组的第二齿轮和驱动轴之间产生第二转速差，第二转速差使得音调连杆振荡。

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