A fractional-order model on the dynamic mechanical behavior of magnetorheological elastomers

In order to describe the dynamic behavior of magnetorheological elastomers (MREs) for the realization of vibration control, this study proposes a constitutive model containing a fractional element and nonlinear springs attributed to the viscoelastic and the rheological properties, respectively. The...

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Bibliographic Details
Published in:Smart materials and structures 2020-02, Vol.29 (2), p.25020
Main Authors: Zhu, Guanghong, Xiong, Yeping, Li, Zigang, Li, Ming, Bai, Xianxu 'Frank'
Format: Article
Language:English
Subjects:
dynamic mechanical analysis
fractional-order model
hysteresis
magnetorheological elastomers
nonlinear model
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Summary:In order to describe the dynamic behavior of magnetorheological elastomers (MREs) for the realization of vibration control, this study proposes a constitutive model containing a fractional element and nonlinear springs attributed to the viscoelastic and the rheological properties, respectively. The viscoelastic behavior in various magnetic fields was studied experimentally to develop this fractional-order nonlinear model, and the model parameters were identified through experimental data fitting of dynamic modulus in frequency domain. The model predictions were subsequently obtained with the predictor-corrector approach to validate the proposed model by comparing with the experimental results on the stress-strain hysteresis. In addition, the efficiency of the proposed model of MRE was also evaluated by comparing the numerical solution with the results of the revised Bouc-Wen model.
ISSN:0964-1726
1361-665X
DOI:10.1088/1361-665X/ab62de