The paper presents an extension of the mixed Sky-hook and ADD to MagnetoRheological dampers. Firstly, a semi-active automotive suspension equipped with a nonlinear Magneto-Rheological damper is introduced. The interest of this nonlinear model is that the bi-viscous and hysteretic behaviors of MR dampers can be taken into account in the controller design. Hence, the designed controller is more a...

This paper investigates the performance of the semiactive control system based on magnetorheological fluid (MR) dampers for suppressing excessive vibration of stay cable installed in cable-stayed bridges under wind load. The cable model is extracted from a 156.3 m long stay cable with high tension. The external wind load is generated from the widely used wind load spectrum such as the Kaimal sp...

The development of control systems for a two degreeof-freedom vibration suppression system using a magnetorheological (MR) fluid damper is the subject of this paper. It is assumed that system encounters impulsive disturbance forces. The objective is to use the (MR) fluid damper for the position control and vibration suppression of the payload. The control force is generated by regulating the el...

Transmission of vibrations into the cabin while driving and general comfort driver is essential for agricultural heavy-duty vehicles. Due to long working hours rough terrain during operation, reduced attention or health problems may occur when significant are transferred from vehicle chassis driver. One modern damping systems which can drastically minimise vibration transmission semi-active sus...

Magnetorheological (MR) dampers have a virtue over conventional dampers, where their damping properties can be adjusted using magnetic field. However, MR been barely implemented in small vibratory systems, which the modal mass and stiffness are relatively small. This is due to two major reasons, namely its high parasitic force big moving mass. When such an damper installed system, system‘s defa...

Investigations on the design of controllable magnetorheological (MR) fluid devices have focused heavily on low velocity and frequency applications. The extensive work in this area has led to a good understanding of MR fluid properties at low velocities and frequencies. However, the issues concerning MR fluid behavior in impact and shock applications are relatively unknown. To investigate MR flu...

As an important member of smart materials, magnetorheological elastomers (MREs) exhibit characteristics that their modulus can be controlled by an external magnetic field. Based on these experimental results, a viscoelastic solid model with four parameters was proposed to predict the performance of MRE. A building model, three stories high, was constructed using MATLAB SIMULINK to evaluate the ...

Magnetorheological (MR) damper performance is evaluated only by single-field analysis in the design process, which can easily lead to larger errors. Based on this, a simulation method of MR considering multiphysics coupling was proposed. According certain automobile shock absorber requirement, an suitable for suspension designed. The mechanical model, electromagnetic field flow and structural s...

This study introduces an online reconfigurable road-adaptive semi-active suspension controller that reaches the performance objectives with satisfying dissipativity constraint. The concept of model is based on a nonlinear static Magnetorheological (MR) damper considering bi-viscous and hysteretic behaviors damper. input saturation problem has been solved by using proposed method in literature a...

Many publications show that the ride comfort of a railway vehicle can be significantly improved using semi-active damping control lateral secondary dampers. However, efficiency depends on selection algorithm and damper dynamic behaviour, i.e., its force rise response time, drop time range. This paper examines influence these parameters magnetorheological (MR) S/A for several algorithms. One new...