Semi-empirical modeling of hysteresis compensation in magnetostrictive actuator

Ki-Hyun Ji; Hae-Jung Park; Young-Woo Park; Norman M. Wereley

doi:10.1117/12.2012229

3 April 2013 Semi-empirical modeling of hysteresis compensation in magnetostrictive actuator

Ki-Hyun Ji, Hae-Jung Park, Young-Woo Park, Norman M. Wereley

Proceedings Volume 8689, Behavior and Mechanics of Multifunctional Materials and Composites 2013; 86890U (2013) https://doi.org/10.1117/12.2012229
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

Hysteresis causes a delayed response to a given input in a magnetostrictive actuator (MA). It becomes critical when the MA has to be controlled in precise and real-time mode. An efficient way to compensate hysteresis must be considered. The Jiles-Atherton and Preisach models have been applied mostly in the literature, but these models need complex mathematics that makes them difficult to be applied in precise and real-time mode. Thus, this paper presents a semi-empirical model to compensate hysteresis in the MA. The idea comes from the similarity of the shapes between the hysteresis-compensated input voltage to the MA, and the output voltage of R-C circuit. The respective hysteresis-compensated input voltage and R-C circuit are expressed as polynomial and exponential equations, resulting in two closed-form equations about capacitance. One set of capacitance values for each frequency is selected by simulating the derived equations. Experiments are performed to choose one capacitance value among a set of capacitance values from simulation, based on trial-and-error. The concept of the hysteresis loss is introduced and defined as the ratio of areas between the hysteretic and reference curves. It is observed that the percent change of hysteresis loss increases as the frequency increases up to 400 Hz, but decreases with further increase of the frequency up to 800 Hz. It can be concluded that the proposed approach is effective to compensate hysteresis in the MA, and that hysteresis loss definition introduced by us can be used as a helpful measure of hysteresis compensation.

Citation Download Citation

Ki-Hyun Ji, Hae-Jung Park, Young-Woo Park, and Norman M. Wereley "Semi-empirical modeling of hysteresis compensation in magnetostrictive actuator", Proc. SPIE 8689, Behavior and Mechanics of Multifunctional Materials and Composites 2013, 86890U (3 April 2013); https://doi.org/10.1117/12.2012229

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available