Finite element models for the piezoelectric actuation in ultrasonic traveling wave motorsKROME, J. W; WALLASCHEK, J.Journal of intelligent material systems and structures. 1996, Vol 7, Num 2, pp 157-161, issn 1045-389XConference Paper

Models for the electro-mechanical interaction of the stator of a piezoelectric ultrasonic motor and its power supplyKROME, J. W; MAAS, J; WALLASCHEK, J et al.Zeitschrift für angewandte Mathematik und Mechanik. 1996, Vol 76, pp 357-360, issn 0044-2267, SUP4Conference Paper