Design of Magneto- Rheological Damper for Suspension System
محمد جواد عبيد, مهدي قهرمان فخرالدين براخاس
كلية الهندسة-جامعة بابل · العراق
Suspension has been seen as the vehicle's most significant component. The suspension architecture affects drivingcomfort and car handling efficiency. Over recent decades, automobile technology has continually introduced advances to give end users greater driving comfort. This study uses pattern search optimization techniques to achieve multi-target optimization of MR damper with objective damping force maximization by MR Damper with geometric parametric limit function.MR dampers are semi-active systems that gain higher-level, controllable strengths and efficiency, while maintaining passive system functionality and low energy demands. However, a semi-active component of an MR Damper's highly non-linear behavior increases the complexity of the numerical modeling behavior, notably when using parametrical models.Research focuses on semi-active suspension design, modeling, and simulation with regard to the hysteresis behavior of one-quart car model using non-linear theory of the Magneto-Rheological (MR) damper. The research is based on the assumption that the same disturbance is caused by each wheel. Bingham models are used for analysis of hysteresis. Research involves simulation of Bingham and passive models. For the three road profiles the modelled system is analyzed and the model comparison study for maximum comfort with a reduced shot and a remediation time of the vehicle's jump weight is performed. In terms of damping power requirements, the IIBingham model is more comfortable that the passive suspension and has less overhead and less time for settling.A Magneto-Rheological fluid damper is used in the damper system of the suspension system. In order to simplify, the suspension system is described by a quarter-car model. The complex model of the observed form of a four-car is used in Newton's second motion theorem. The Bingham Model for Magnet-rheological Liquid Dampers expresses a complex hysteresis power in this article. Several simulations for the suspension system have been performed in an automotive application; different excitations (square, bump,and random) have been performed as road profiles to demonstrate the effect of the force generated in the damper for each excitation signal.Also in this study use PID controller with the system and study its effect. The simulation results showed the efficacy of the quarter car model derived,including the MR fluid damper