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Investigation and modelling of damping mechanisms of magnetorheological elastomers

机译：磁流变弹性体阻尼机理的研究与建模

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Damping in MREs is considered to be ascribed to viscous flow of the rubber matrix, interfacial damping at the interface between the magnetic particles and the matrix and magnetism induced damping. In this study, individual components in MREs that contribute to material damping were investigated. A model was developed to include viscous flow of the rubber matrix, interfacial damping and magnetism induced damping to give the total damping capacity of MREs psi(MRE)(psi(MRE)) It was found that psi(MRE) depends on frequency, iron sand content, strain amplitude and psi(MRE) is independent of the applied magnetic field over saturation magnetization. The proposed model was assessed experimentally using a series of isotropic and anisotropic MREs. Comparison between tan delta with psi(MRE) showed that psi(MRE) matched the experimental trends with average percentage difference of 8.1% and 21.8% for MREs with modified iron sand unmodified iron sand, respectively. (C) 2015 Wiley Periodicals, Inc.
机译：MRE中的阻尼被认为是由于橡胶基体的粘性流动，磁性颗粒与基体之间的界面处的界面阻尼以及磁感应阻尼引起的。在这项研究中，研究了MRE中有助于材料阻尼的各个成分。建立了包含橡胶基体的粘性流动，界面阻尼和磁感应阻尼的模型，以给出MRE的总阻尼能力psi（MRE）（psi（MRE））。发现psi（MRE）取决于频率，铁砂含量，应变幅度和psi（MRE）与饱和磁化强度上施加的磁场无关。使用一系列各向同性和各向异性的MRE，对所提出的模型进行了实验评估。 tanδ与psi（MRE）的比较表明，psi（MRE）与实验趋势相吻合，改性铁砂和未改性铁砂的MRE的平均百分比差异分别为8.1％和21.8％。 （C）2015威利期刊公司

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