Accession Number : ADA331907

Title :   Composite Piezoelectric Assemblies for Torsional Actuators

Descriptive Note : Progress rept. Jun 96-Jul 97

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC MECHANICS OF MATERIALS BRANCH

Personal Author(s) : Kim, Chulho ; Jessen, Todd ; DeGiorgi, Virginia ; Bender, Barry ; Wu, Carl C.

PDF Url : ADA331907

Report Date : 30 SEP 1997

Pagination or Media Count : 60

Abstract : A new piezoelectric actuator was developed for the direct production of large angular displacement and torque, with a monolithic, solid state device. The intended application of this device is to control vibration and noise in aircraft, helicopter, spacecraft and in manipulators and positioners where direct rotary motion is required. Actuator design and assembly methods, materials preparation, poling procedures, and test results for joint strengths, and actuator output capabilities are discussed.

Descriptors :   *PIEZOELECTRIC MATERIALS, *ACTUATORS, VIBRATION ISOLATORS, ELECTROMECHANICAL DEVICES, NOISE REDUCTION, TORSION, AIRCRAFT NOISE, SHEAR STRENGTH.

Subject Categories : Flight Control and Instrumentation
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE