磁流变阻尼器的实验建模

磁流变阻尼器是一种应用前景广阔的半主动控制阻尼器。基于对磁流变阻尼器的实验，建立了描述磁流变阻尼器阻尼特性的Bingham塑性模型和非线性滞回模型。讨论了施加电压（磁场强度）、激振振幅及频率对两种模型的参数的影响。该文提出的非线性滞回模型具有精度高、参数识别过程简单和准确反映磁流变阻尼器滞回特性等优点。

Experimental Modeling of Magneto-Rheological Dampers

The experimental modeling of a kind of Magneto-Rheological dampers,i.e.,MR dampers,which has great potential in semi-active control of mechanical vibration,is presented in the paper.The paper starts with some discussions on qualitative behavior of an MR damper from the experimental data when the damper is subject to sinusoidal excitation.Afterwards,it outlines the parametric identification of MR dampers,on the basis of the two models,i.e.,the Bingham plastic model and the nonlinear hysteretic model.In addition,the operational effects,such as the magnitude of voltage(the magnitude of the magnetic field),the amplitude and frequency of excitation,on the parameters of the two models are discussed.