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Open AccessArticle

A Modified Duhem Model for Rate-Dependent Hysteresis Behaviors

School of Mechanical Engineering and Electronic Information, China University of Geosciences, Wuhan 430074, China
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Micromachines 2019, 10(10), 680; https://doi.org/10.3390/mi10100680
Received: 18 September 2019 / Revised: 3 October 2019 / Accepted: 7 October 2019 / Published: 9 October 2019
(This article belongs to the Special Issue Piezoelectric Transducers: Materials, Devices and Applications)
Hysteresis behaviors are inherent characteristics of piezoelectric ceramic actuators. The classical Duhem model (CDM) as a popular hysteresis model has been widely used, but cannot precisely describe rate-dependent hysteresis behaviors at high-frequency and high-amplitude excitations. To describe such behaviors more precisely, this paper presents a modified Duhem model (MDM) by introducing trigonometric functions based on the analysis of the existing experimental data. The MDM parameters are also identified by using the nonlinear least squares method. Six groups of experiments with different frequencies or amplitudes are conducted to evaluate the MDM performance. The research results demonstrate that the MDM can more precisely characterize the rate-dependent hysteresis behaviors comparing with the CDM at high-frequency and high-amplitude excitations. View Full-Text
Keywords: piezoelectric ceramic materials; Duhem model; hysteresis model piezoelectric ceramic materials; Duhem model; hysteresis model
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Gan, J.; Mei, Z.; Chen, X.; Zhou, Y.; Ge, M.-F. A Modified Duhem Model for Rate-Dependent Hysteresis Behaviors. Micromachines 2019, 10, 680.

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