NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Modelling of piezoelectric actuator dynamics for active structural controlThe paper models the effects of dynamic coupling between a structure and an electrical network through the piezoelectric effect. The coupled equations of motion of an arbitrary elastic structure with piezoelectric elements and passive electronics are derived. State space models are developed for three important cases: direct voltage driven electrodes, direct charge driven electrodes, and an indirect drive case where the piezoelectric electrodes are connected to an arbitrary electrical circuit with embedded voltage and current sources. The equations are applied to the case of a cantilevered beam with surface mounted piezoceramics and indirect voltage and current drive. The theoretical derivations are validated experimentally on an actively controlled cantilevered beam test article with indirect voltage drive.
Document ID
19900042390
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hagood, Nesbitt W.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Chung, Walter H.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Von Flotow, Andreas
(MIT Cambridge, MA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Structural Mechanics
Report/Patent Number
AIAA PAPER 90-1087
Meeting Information
Meeting: AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Location: Long Beach, CA
Country: United States
Start Date: April 2, 1990
End Date: April 4, 1990
Accession Number
90A29445
Funding Number(s)
CONTRACT_GRANT: NAGW-21
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available