Precise real-time hysteretic force tracking of magnetorheological damper

Abstract

Precise and real-time nonlinear hysteresis model of magnetorheological (MR) dampers is the premise to efficient control of MR semi-active systems. The influence of hysteresis models of MR damper on the control performance of the systems, employing a quarter-car MR semi-active suspension as an example, is studied thoroughly in this paper. Specifically, the hysteretic mechanical behavior of MR damper is precisely described, and the real-time feedforward control force tracking of MR damper is conducted, based on the resistor-capacitor (RC) operator-based hysteresis model. In addition, the dynamic model of a quarter-car MR semi-active suspension system is established, and a linear quadratic regulator controller and a Skyhook controller are correspondingly designed. The experimental tests, comparison, and analysis of MR damper utilizing the RC operator-based hysteresis model and the Bingham hysteresis model are carried out with the self-developed prototype of the quarter-car suspension system.

Magnetorheological damper temperature characteristics and control-oriented temperature-revised model

“…The calculated current is forwarded to the model to check force could trace the actual one [31,32], as shown in figure 14. Temperature-compensated control forces are obtained using currents calculated from TRIM.…”

Modeling free Inversion based Iterative Feedforward Control of Magnetorheological Dampers

“…The parametric models include Bouc-Wen model [5,6], phenomenological model [7,8], and Dahl model [9], etc. Normally, an inverse model is chosen as feedforward controller of an MR damper [10][11][12] in order to obtain the required current in terms of the desired damping force and piston motion state [10,11]. The feedforward control has a simple control structure and fast response [12].…”

Shaking Table Attached to Magnetorheological Damper: Simulation and Experiments for Structural Engineering

“…This feature makes the so-called MR damper a unique device: controlling the magnetic field intensity of the fluid within the MR damper means controlling the MR damper stiffness. Because of its fast response to changing stiffness, the MR damper has found applications in aircraft landing gear [ 7 ], vehicle suspension [ 8 , 9 , 10 ], cable-stayed bridges [ 11 , 12 ], energy harvesting [ 13 ], and rehabilitation robotics [ 14 , 15 , 16 ].…”