Title:
【発明の名称】ヘリコプタのロータ・ブレードのフラップを制御するための圧電操作装置
Document Type and Number:
Japanese Patent JP2003530267
Kind Code:
A
Abstract:
A piezoelectric actuating device for controlling a flap on a rotor blade of a helicopter includes a piezo element arrangement including at least one piezoelectric stack actuator. A power transmission frame is coupled to the piezo element arrangement, the power transmission frame including an abutment and a driven element and generating a force therebetween from a change in length of the piezo element arrangement upon an excitation thereof, the force acting transversely to a direction of a centrifugal force of the rotor blade. A first holding device is provided including a pair of first flexible straps configured to fix the power transmission frame relative to the rotor blade in the direction of the centrifugal force and to allow the power transmission frame to move relative to the rotor blade transversely to the direction of the centrifugal force within a limited range. A second holding device is provided including a pair of second flexible straps configured to fix the abutment relative to the rotor blade transversely to the direction of the centrifugal force and to allow the abutment to move relative to the rotor blade in the direction of the centrifugal force within a limited range.
Inventors:
Helmle, Frank
Jenkel, Peter
Jenkel, Peter
Application Number:
JP2001574428A
Publication Date:
October 14, 2003
Filing Date:
April 03, 2001
Export Citation:
Assignee:
ARS Deutsche Land Gesellschaft Mitt Beschlenktel Haftung
International Classes:
B64C27/615; H01L41/09; (IPC1-7): B64C27/615
Attorney, Agent or Firm:
Hisako Ishido (3 outside)