Causal modeling and identification of a travelling wave ultrasonic motor

F. Giraud, B. Lemaire-Semail
2002 European Physical Journal : Applied physics  
This paper deals with the causal modeling of a Traveling Wave Ultrasonic Motor; the aim of the study is to build an approach which may take into account the physical contact responsible for the pullout phenomenon, but straightforward enough to be useful for control. As the parameters available for the modeling can not be obtained following the well known electromechanical equivalent scheme identification, a new identification method is proposed. In this purpose, the model of the motor is
more » ... ed in the traveling wave rotating frame. PACS . 77.65.-j Piezoelectricity and electromechanical effects -84.50.+d Electric motors -43.38.Fx Piezoelectric and ferroelectric transducers
doi:10.1051/epjap:2002122 fatcat:ufbqoe44crcjll2f524amvrgla