Willi Martin

Adaptive structures for fixed and rotary wing aircraft

Since more than 10 years EADS Innovation Works, which is the corporate research centre of EADS (European Aeronautic Defence and Space Company), is investigating smart materials and adaptive structures for aircraft in cooperation with EADS business units. Focus of research efforts are adaptive systems for shape control, noise reduction and vibration control of both fixed and rotary wing aircraft as well as for lift optimisation of fixed wing aircraft. Two outstanding adaptive systems which have been pushed ahead in cooperation with Airbus Germany and Eurocopter Germany are adaptive servo flaps for helicopter rotor blades and innovative high lift devices for fixed wing aircraft which both were tested in flight for the first time representing world premieres. In this paper various examples of adaptive systems are presented which were developed and realized by EADS in recent years.

RESEARCH NEED FOR PIEZOACTUATORS IN ADAPTIVE STRUCTURES

Piezoelectric materials are highly attractive as actuator elements for Adaptive Structures since they have material-inherent actuatoric and sensoric functions and can easily be electrically controlled. This paper describes the possible fields of applications and deduces research needs.