Comparison of Control Strategy on Magneto-Rheological Fluid Damper Performance for Impact Reduction

Abstract

This paper investigates the effects of control strategy selection on the effectiveness of impact reduction control for a magneto-rheological fluid (MRF) damper-based system. The control performance of a passive damper, an MRF damper controlled by skyhook and an MRF damper controlled by a fast practical control are compared. A mechanical system model of a single degree-of-freedom (SDOF) impact isolation system using MRF dampers with different controllers is constructed, and the governing equation for the SDOF impact isolation system is derived. The FPC control algorithm is used to verify the MRF damper performance of the systems. The control performance of the systems under impact loading from various horizontal impact energies is evaluated. The results indicate that the MRF damper with the FPC controller provides much better performance for impact reduction control.