Variable stiffness and damping semi-active vibration control technology based on magnetorheological fluids

Authors

Shiyu Zhao, Hefei University of Technology
Huaxia Deng, Hefei University of Technology
Jin Zhang, Hefei University of Technology
ShuaiShuai Sun, University of WollongongFollow
Weihua Li, University of WollongongFollow
Lei Wang, University of WollongongFollow

RIS ID

86122

Publication Details

Zhao, S., Deng, H., Zhang, J., Sun, S., Li, W. & Wang, L. (2013). Variable stiffness and damping semi-active vibration control technology based on magnetorheological fluids. Proceedings of SPIE - International Society for Optical Engineering, 8916 89160I-1-89160I-9.

Abstract

Vibration is a source to induce uncertainty for the measurement. The traditional passive vibration control method has low efficiency and limited working conditions. The active vibration control method is not practical for its power demanding, complexity and instability. In this paper, a novel semi-active vibration control technology based on magnetorheological (MR) fluid is presented with dual variable stiffness and damping capability. Because of the rheological behavior depending on the magnetic field intensity, MR fluid is used in many damping semi-active vibration control systems. The paper proposed a structure to allow the both overall damping and stiffness variable. The equivalent damping and stiffness of the structure are analyzed and the influences of the parameters on the stiffness and damping changing are further discussed.