Actuation system for an active element in a rotor blade

摘要

In accordance with one embodiment of the present application, an actuation system is configured for actuation of an airfoil member with a flap mechanism. The actuation system can include an upper drive tape and a lower drive tape, each partially wrapped around a first bearing and second bearing. An inboard frame can be actuated by at least one linear actuator. Similarly, an outboard frame can be actuated by at least one linear actuator. The inboard frame is coupled to the upper drive tape, while the outboard frame is coupled to the lower drive tape. An actuation of the inboard frame and outboard frame in a reciprocal manner acts move a flap input lever reciprocally upward and downward. A flap mechanism is configured to convert the movement of the flap input lever into rotational movements of the airfoil member.

主权项

1. An actuation system configured for actuating a moveable airfoil surface on a rotor blade, the actuation system comprising:
a first bearing and a second bearing; an upper drive tape and a lower drive tape each coupled to the second bearing, the upper drive tape being elastically deformable and at least partially in contact with the first bearing and the second bearing, the lower drive tape being elastically deformable and at least partially in contact with the first bearing and the second bearing; a first linear actuator and a second linear actuator; an inboard frame operably associated with the first linear actuator, the inboard frame being coupled to the upper drive tape; an outboard frame operably associated with the second linear actuator, the outboard frame being coupled to the lower drive tape; and an input lever coupled to the upper drive tape and the lower drive tape; wherein a reciprocal translation of the inboard frame and the outboard frame results in a movement of the input lever.