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On the Integration of Piezoceramic Actuators in Composite Structures for Aerospace Applications

DaimlerChrysler Aerospace Dornier, An der BundesstraJ3e 31, 88039 Friedrichshafen, GermanyJohannes.Duerr{at}DaimlerChrysler.com

Ursula Herold-Schmidt

Helmut W. Zaglauer

DaimlerChrysler Aerospace Dornier, An der BundesstraJ3e 31, 88039 Friedrichshafen, Germany

Franz Joseph Arendts

University of Stuttgart, Institute of Aircraft Design, Pfaffenwaldring 31, 70569 Stuttgart, Germany

Up to now experimental and theoretical research on active structures for aerospace applications has put the focus mainly on surface bonded actuators. Simultaneously piezoceramics became the major type of actuating device being investigated for smart structures. In this context various techniques of insulating, bonding and operating these actuators have been developed. However, especially with regard to actuators, only a few investigations have dealt with embedding of these components into the load bearing structure so far. With increasing shares of fibre-reinforced plastics applied in aerospace products the option of integrating the actuation capability into the components should be reconsidered during the design process.

This paper deals with different aspects related to the integration of piezoceramic actuators into fibre reinforced aerospace structures. An outline of the basic possibilities of either bonding an actuator to the structure's surface or embedding it into the composite is given while the emphasis is put on different aspects related to the latter technology. Subsequently, recent efforts at DaimlerChrysler Aerospace Dornier concerning aircraft components with surface bonded actuators are presented. Design considerations regarding embedded piezoceramic actuators are discussed. Finally, some techniques of nondestructive testing applicable to structures with surface bonded as well as embedded piezoelectric actuators are described.

Journal of Intelligent Material Systems and Structures, Vol. 10, No. 11, 880-889 (1999)
DOI: 10.1106/W1H4-7XRW-TPUH-7RKA


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