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Browsing by Subject "semiactive suspension"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Semi-active suspension system modelling and parameters identification
    (Wydawnictwa AGH, 2012) Kogut, Krzysztof
    This paper presents a study of obtaining a model of the real quarter-car suspension device. The system is equipped with an automotive engineering magnetorheological (MR) rotary brake. Due to the complex mechanical structure of the apparatus the considered model contains several simplifications. In the parameter estimation process the grey-box method was used, while the process itself was split into two separate steps. In the first step, the parameters of the nonlinear model of suspension part are identified and the static profile of the MR damper is experimentally determined. The second step is to estimate the parameters of the model of the wheel-eccentricity part. Comparison of the modelled system trajectories and real-time experiments are presented. The identification results show that the obtained model is accurate and can be successfully applied to simulate the device.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Semi-active suspension system with an MR rotary damper
    (Wydawnictwa AGH, 2009) Rosół, Maciej; Gorczyca, Przemysław
    The paper is concerned with a laboratory semi-active suspension system (SAS), built to demonstrate and test a number of control algorithms. The heart of the system is the automotive engineering magnetorheological (MR) rotary damper used as an actuator. The MR rotary damper enables to control the SAS damping torque in a continuous way. A designed on-off controller automatically adjusts the damping coefficient to generate the torque required to reduce the amount of energy transmitted from the source of vibrations to the suspended equipment. The experimental results of laboratory investigations of the designed control algorithm in respect to the RD-2087-01 damper have been presented.