Sensitivity analysis of the MR damper model parameters on the vibration transmissibility characteristic

The study focuses on the influence of selected parameters of magnetorheological damper (MR) on transmissibility function values and shape of these characteristics. Suspension was modeled as one degree of freedom system. Modify hysteresis Bouc-Wen model also in literature called as Spencer model was used to describe the dynamics of a MR damper. The purpose of this article is to analyze the sensitivity of coefficients of a parametric model of the damper on the dynamic properties of vibration reduction system. The real object changes in these parameters may result from long term use or aging of the damper components. Such an analysis is also useful for the design of vibration reduction system using a specially made construction of dampers. On the basis of the experience gained can be related to the design parameters of the damper with the physical features of the vibration reduction. The paper was carried out numerical simulation of the proposed model with non-linear description of the MR damper. Analyzes allowed to determine the influence of selected parameters on the transmissibility function of vibrations of the suspension system.