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Development of Adaptive Structures with Encapsulated PZT-Patches

Wierach, P, and Sachau, D, (2000) Development of Adaptive Structures with Encapsulated PZT-Patches. In: CD: ICSV 7, 7th International Congress on Sound and Vibration, Vol 1, pp. 179-186. Kramer Technology Publishing. ICSV 7, Garmisch Partenkirchen, 4-7 July 2000.

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To reduce the negative effects of accelerated mass lightweight design has become very important for a great variety of industrial applications. Unfortunately lightweight structures often suffer from vibrational sensitivity, tendency to buckling, and susceptibility to damage. A promising way to solve these problems is the use of multifunctional materials. Arising deformations, accelerations or other physical quantities can be detected by sensors, technically processed with suitable real-time controllers and eliminated with structural conformable embedded actuators. Because of many excellent properties (low energy consumption in quasi static applications, high efficiency, fast response, etc.) piezoelectric materials are in the center of interest. Here thin monolithic piezoceramic wafers are used as structural actuators and sensors. Significant differences between mechanical and thermal properties of the piezoceramic material demand sophisticated manufacturing techniques to attach these piezoceramic wafers on metal substrates or to integrate them into carbon fiber composite structures. A technology has been developed to pre-encapsulate different kinds of piezoceramic materials to improve the handling of the extremely brittle material for further processing. In this paper we will focus on the development of manufacturing techniques for adaptive structures. Experiments have been made to investigate the active and passive properties of the multifunctional composite.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2002,
Title:Development of Adaptive Structures with Encapsulated PZT-Patches
AuthorsInstitution or Email of Authors
Journal or Publication Title:CD: ICSV 7, 7th International Congress on Sound and Vibration
Volume:Vol 1
Page Range:pp. 179-186
International Institute of Acoustics and Vibration, UNSPECIFIED
Publisher:Kramer Technology Publishing
Event Title:ICSV 7, Garmisch Partenkirchen, 4-7 July 2000
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):UNSPECIFIED
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Institut für Strukturmechanik
Deposited By: Sibylle Wolff
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 16:22

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