Experimental verification of various modelling techniques for piezoelectric actuated panels
Aglietti, G.S., Cunningham, P.R. and Langley, R.S. (2002) Experimental verification of various modelling techniques for piezoelectric actuated panels. In, 5th Dynamics and Control of Systems and Structures in Space (DCSSS), Cambridge, UK, Jul 2002. , 139-48.
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Official URL: http://naca.central.cranfield.ac.uk/dcsss/2002/B05...
Description/Abstract
The scientific equipment being used on-board satellites sometimes requires a high
degree of pointing accuracy and a minimum level of disturbances i.e. vibrations. To
this end, actively controlled structures are employed and one of the best methods of
achieving this degree of control with the minimum of impact on the structure itself
is to employ piezoelectric patches as sensors/actuators.
In this paper, various techniques for the mathematical modelling of the dynamics of
a piezoelectric actuated panel are presented. The results obtained via the numerical
simulations are then compared with test results in order to assess the accuracy of the
various modelling techniques.
Attention is focused on a simply supported panel, with twin patches of piezoelectric
material bonded on opposite faces of the panel, which act as actuators. The
equations governing the dynamics of the system, which includes the panel and the
actuators driven by electrical signals, are derived using Lagrange’s equations of
motion with vibration mode shapes of the bare panel as the Ritz functions. Other
techniques, such as Mechanical Impedance based method and Finite Element
method are also used to produce mathematical models of the system
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Related URLs: | http://naca.central.cranfield....lietti.pdf |
| Subjects: | Q Science > QA Mathematics T Technology > TL Motor vehicles. Aeronautics. Astronautics |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences |
| ePrint ID: | 22299 |
| URI: | http://eprints.soton.ac.uk/id/eprint/22299 |
| Deposited On: | 14 Jul 2006 |
| Last Modified: | 02 Mar 2012 11:25 |
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