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Proceedings Paper

“Shape function + memory mechanism”-based hysteresis modeling of magnetorheological fluid actuators
Author(s): Li-Jun Qian; Peng Chen; Fei-Long Cai; Xian-Xu Bai
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Paper Abstract

A hysteresis model based on “shape function + memory mechanism” is presented and its feasibility is verified through modeling the hysteresis behavior of a magnetorheological (MR) damper. A hysteresis phenomenon in resistor-capacitor (RC) circuit is first presented and analyzed. In the hysteresis model, the “memory mechanism” originating from the charging and discharging processes of the RC circuit is constructed by adopting a virtual displacement variable and updating laws for the reference points. The “shape function” is achieved and generalized from analytical solutions of the simple semi-linear Duhem model. Using the approach, the memory mechanism reveals the essence of specific Duhem model and the general shape function provides a direct and clear means to fit the hysteresis loop. In the frame of the structure of a “Restructured phenomenological model”, the original hysteresis operator, i.e., the Bouc-Wen operator, is replaced with the new hysteresis operator. The comparative work with the Bouc-Wen operator based model demonstrates superior performances of high computational efficiency and comparable accuracy of the new hysteresis operator-based model.

Paper Details

Date Published: 22 March 2018
PDF: 7 pages
Proc. SPIE 10596, Behavior and Mechanics of Multifunctional Materials and Composites XII, 105961H (22 March 2018); doi: 10.1117/12.2294504
Show Author Affiliations
Li-Jun Qian, Hefei Univ. of Technology (China)
Peng Chen, Hefei Univ. of Technology (China)
Fei-Long Cai, Hefei Univ. of Technology (China)
Xian-Xu Bai, Hefei Univ. of Technology (China)

Published in SPIE Proceedings Vol. 10596:
Behavior and Mechanics of Multifunctional Materials and Composites XII
Hani E. Naguib, Editor(s)

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