Title :
An adaptive control method for magnetostrictive transducers with hysteresis
Author :
Nealis, James M. ; Smith, Ralph C.
Author_Institution :
Dept. of Math., North Carolina State Univ., Raleigh, NC, USA
Abstract :
Addresses the development of an adaptive control strategy for regulating the output of a prototypical magnetostrictive transducer. The application is a generalization of an industrial process in which the magnetostrictive transducer is used to drive a cutting head in a high speed, high accuracy mode of operation. To attain the required stroke and force requirements, the transducer must operate in a regime in which the relation between input currents and output strains or forces exhibits significant hysteresis and constitutive nonlinearities including saturation effects. A variety of techniques for modeling the hysteresis and transducer dynamics are discussed and a model reference adaptive control (MRAC) strategy based on a Preisach model is developed. The performance of the control method is illustrated through a numerical example
Keywords :
control nonlinearities; cutting; hysteresis; magnetostrictive devices; model reference adaptive control systems; process control; transducers; MRAC strategy; Preisach model; constitutive nonlinearities; cutting head; high speed high accuracy mode; industrial process; input currents; magnetostrictive transducers; model reference adaptive control strategy; output strains; saturation effects; Adaptive control; Frequency; Hysteresis; Inverse problems; Magnetosphere; Magnetostriction; Milling; Prototypes; Saturation magnetization; Transducers;
Conference_Titel :
Decision and Control, 2001. Proceedings of the 40th IEEE Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-7061-9
DOI :
10.1109/.2001.980862
