H infinity Control Design for a Magnetostrictive Transducer [report]

James Nealis, Ralph C. Smith
2003 unpublished
Magnetostrictive transducers are becoming increasingly prevalent in industrial applications including high speed milling and hybrid motor design due to their broadband, large force capabilities. To achieve the level of performance required by such applications, however, these transducers must operate in nonlinear and hysteretic regimes. To accommodate this nonlinear behavior, models and control laws must incorporate known physics and be sufficiently robust to operate under realistic operating
more » ... nditions. We develop here an H ∞ robust control design for a prototypical magnetostrictive transducer but note that the design is sufficiently general to be utilized for several commonly used smart materials including piezoceramics and shape memory alloys. The performance of the control strategy is illustrated through a numerical example. 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT 18. NUMBER OF PAGES 6 19a. NAME OF RESPONSIBLE PERSON a. REPORT unclassified b. ABSTRACT unclassified c. THIS PAGE unclassified Standard Form 298 (Rev. 8-98) Prescribed by ANSI Std Z39-18
doi:10.21236/ada451951 fatcat:jsxv45lotncpxfgimdbslt555i