Abstract
The phenomenon of hysteresis is commonly encountered in the study of magnetic materials. The Preisach operator and its variants have been successfully used in the modeling of a physical system with hysteresis. In an application, one has to determine a density function for the Preisach operator using the input-output behavior of the system at hand. In this paper, we describe a method for numerically determining an approximation of the density function when there is not enough experimental data to uniquely solve for the density function. We also present numerical results where we estimate an approximate density function from data published in the literature for a magnetostrictive actuator and an electro-active polymer.
Original language | English |
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Pages (from-to) | 326-336 |
Number of pages | 11 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 5049 |
DOIs | |
State | Published - 2003 |
Event | PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Smart Structures and Materials 2003 Modeling, Signal Processing, and Control - San Diego, CA, United States Duration: Mar 3 2003 → Mar 6 2003 |
Keywords
- Constrained least squares
- Density function Identification
- EAPs
- Hysteresis
- Preisach Operator
- Smart materials