James M. Nealis

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This paper addresses the development of robust control designs for high performance smart material transducers operating in nonlinear and hysteretic regimes. While developed in the context of a magnetostrictive transducer used for high speed, high accuracy milling, the resulting model-based control techniques can be directly extended to systems utilizing(More)
Increased control demands in applications including high speed milling and hybrid motor design have led to the utilization of magnetostrictive transducers operating in hysteretic and nonlinear regimes. To achieve the high performance capabilities of these transducers, models and control laws must accommodate the nonlinear dynamics in a manner which is(More)
This paper 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(More)
Increased control demands in applications including high speed milling and hybrid motor design have led to the utilization of magnetostrictive transducers operating in hysteretic and nonlinear regimes. To achieve the high performance capabilities of these transducers, models and control laws must accommodate the nonlinear dynamics in a manner which is(More)
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