NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Static and dynamic characteristics of a piezoceramic strutThe experimental study of a piezoceramic active truss is presented. This active strut is unique in that the piezoceramic configurations allow the stroke length of the strut not to be dependent on the piezoceramic material's expansion range but on the deflection range of the piezoceramic bender segment. A finite element model of a piezoceramic strut segment was constructed. Piezoceramic actuation was simulated using thermally induced strains. This model yielded information on the stiffness and force range of a bender element. The static and dynamic properties of the strut were identified experimentally. Feedback control was used to vary the stiffness of the strut. The experimentally verified model was used to explore implementation possibilities of the strut.
Document ID
19930009638
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pokines, Brett J.
(State Univ. of New York, Buffalo., United States)
Belvin, W. Keith
(NASA Langley Research Center Hampton, VA, United States)
Inman, Daniel J.
(State Univ. of New York, Buffalo., United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1993
Publication Information
Publication: The Fifth NASA(DOD Controls-Structures Interaction Technology Conference, Part 1
Subject Category
Structural Mechanics
Accession Number
93N18827
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available