Modeling of smart devices

The precise numerical modeling of electromechanical smart structures and devices is reported. This modeling is performed on the basis of finite and boundary element procedures solving coupled field problems arising in transducer technology. Furthermore, the controler is embedded within the simulation process. Therewith, the numerical computation of the closed loop starting with the sensor and ending with the actuator is performed. Results are shown for an electrostatic excited plate as well as an electromagnetic excited tube, which are both actively damped by controlled piezoelectric actuators.