Mixed shear mode and compression mode magnetorheological elastomer isolator

2021 ◽  
Author(s):  
A. N. Azman ◽  
M. F. Jaafar
Keyword(s):  
Shear Mode ◽  
Magnetorheological Elastomer

Study on the Mechanical Properties of Magnetorheological Elastomers

2013 ◽  
Vol 774-776 ◽  
pp. 54-57 ◽  
Author(s):  
Yu Fei Wang ◽  
Guo Fei Wang
Keyword(s):  
Mechanical Properties ◽  
Large Deformation ◽  
Shear Mode ◽  
Magnetorheological Elastomer ◽  
Test Set ◽  
Magnetorheological Elastomers ◽  
Magnetorheological Effect ◽  
Magnetic Filed ◽  
Mr Effect

A polyurethane-based magnetorheological elastomer (MR elastomer) was designed, and the magnetorheological effect (MR effect) under shear mode was systematically tested by the designed test set. The results show that the relative MR effect increases with the exterior magnetic filed strength and decreases as the incentive amplitudes increasing. The preload displacement also directly determines the relative MR effect and too large deformation will make the MR effect decreased sharply. But the incentive frequency has no very obviously influence on the relative MR effect.

Transient responses of magnetorheological elastomer and isolator under shear mode

2019 ◽  
Vol 28 (4) ◽  
pp. 044002 ◽  
Author(s):  
Mi Zhu ◽  
Song Qi ◽  
Yuanpeng Xie ◽  
Jie Fu ◽  
Miao Yu
Keyword(s):  
Shear Mode ◽  
Magnetorheological Elastomer ◽  
Transient Responses

Design and experimental research of a magnetorheological elastomer isolator working in squeeze/elongation–shear mode

2017 ◽  
Vol 29 (7) ◽  
pp. 1418-1429 ◽  
Author(s):  
Yu Tao ◽  
Xiaoting Rui ◽  
Fufeng Yang ◽  
Gangli Chen ◽  
Leixiang Bian ◽  
...  
Keyword(s):  
Relative Increase ◽  
Shear Mode ◽  
Magnetorheological Elastomer ◽  
Magnetorheological Elastomers ◽  
Vertical Stiffness ◽  
Shear Modes ◽  
Strain Relationship ◽  
Stiffness And Damping Coefficient ◽  
Stiffness And Damping ◽  
Relationship Of

Due to the properties of controllable stiffness and damping, a novel isolator based on magnetorheological elastomers is introduced in this article. According to the experimental results, the initial vertical stiffness and damping coefficient of the magnetorheological elastomer isolator are 1.14 × 106 N/m and 495.8 N s/m, respectively. The relative increase in stiffness and damping is 66.57% and 45.55%, respectively. The isolation transmissibility and root mean square of acceleration response are reduced by 41.2% and 65.3%, respectively. To describe the magnetic-induced stress–strain relationship of the anisotropic magnetorheological elastomers, a theoretical model is presented as magnetorheological elastomers working in squeeze/elongation and shear modes simultaneously. Then, the stiffness formula relating to the magnetic field, strain, and the other demanding parameters is deduced. The analytical results of the stiffness formula are fairly in agreement with the experimental data.

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