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2006•Journal of Functional BiomaterialsOpen access

Nonlinear performance of MR damper under base excitation

Yancheng Li

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Abstract

Magnetorheological damper is a typical nonlinear device;it has the characters such as nonlinearity,time-delaying and uncertainty.Nonlinearity of MR damper is of great influence on its behaviors.In this paper, the dynamic responses of nonlinear MR damper under base harmonic excitation is obtained;Characters of MR damper is analyzed using MATLAB software.It is shown that a multi-value performance appears in transmissibility when the damping ration is below 1.Some advices are suggested in design of MR damper.

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What this paper is about

Magnetorheological damper is a typical nonlinear device;it has the characters such as nonlinearity,time-delaying and uncertainty.Nonlinearity of MR damper is of great influence on its behaviors.In this paper, the dynamic responses of nonlinear MR damper under base harmonic excitation is obtained;Characters of MR damper is analyzed using MATLAB software.It is shown that a multi-value performance appears in transmissibility when the damping ration is below 1.Some advices are suggested in design of MR damper.

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Available abstract

Magnetorheological damper is a typical nonlinear device;it has the characters such as nonlinearity,time-delaying and uncertainty.Nonlinearity of MR damper is of great influence on its behaviors.In this paper, the dynamic responses of nonlinear MR damper under base harmonic excitation is obtained;Characters of MR damper is analyzed using MATLAB software.It is shown that a multi-value performance appears in transmissibility when the damping ration is below 1.Some advices are suggested in design of MR damper.

Key concepts: Damper, Nonlinear system, Transmissibility (structural dynamics), MATLAB, Excitation, Magnetorheological fluid, Magnetorheological damper, Base (topology)

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