Frequency-broadening Processing of Magnetorheological Elastomer Vibration Absorber and Optimization of Simulink Simulation

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (17) : 171-176.

Li Lv-zhou1、2 ,Ding Jian-Ning1 ,Tian Yu2

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Abstract

Due to good stability and fast response speed, magnetorheological elastomers (MRE) is gradually applied to dynamic vibration absorber. Shear modulus of MRE changes over magnetic field intensity, and natural frequency of the vibration subsystem changes with it. But the optimal damp radtio and optimum frequency ratio based on fix-point theory do not apply to the system whose main system has damping and subsystem has variable natural frequency. The stduy design and optimize the mathmatical model of double-degree MRE vibration absorber including damping. The model which is described in the paper implement the MRE vibration absorber by changing the magnetic field intensity. The study structure the time-domain model and frequency-domain model based on Matlab Simulink. The simulation analysis the principle and the frequency-broadening processing of vibration absorber which provides the design basis for the application of magnetorheological elastomers in semi-active vibration absorber.

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Li Lv-zhou1、2,Ding Jian-Ning1,Tian Yu2. Frequency-broadening Processing of Magnetorheological Elastomer Vibration Absorber and Optimization of Simulink Simulation[J]. Journal of Vibration and Shock, 2016, 35(17): 171-176

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