An magneto-rheological (MR) suspension system with two seat MR dampers is proposed for the commercial vehicle and its vibration attenuation control performance are investigated by using the Human Simulated Intelligent Controller (HSIC). The seat MR dampers are designed and manufactured and incorporated into a seat suspension. A seat suspension model with a four-DOF human body is derived. On the basis of the dynamic model, the HSIC is formulated to attenuate the unwanted vertical vibration to the driver. The numerical results demonstrate that transmitted vibration levels are substantially reduced. In addition, the proposed MR seat suspension with HSIC is shown to reduce SEAT (seat effective amplitude transmissibility) value by up to 14.21%, to reduce VDV (vibration dose value) ratio by over 13.28% and to reduce crest factor over 27.61 %. In the near future, an actual road test of a vehicle with the MR seat suspension will be undertaken on various road conditions.
Semi-active control of magneto-rheological variable stiffness and damping seat suspension with human-body model
Halbaktive Regelung der magnetorheologischen variablen Steifigkeit und Dämpfung der Sitzfederung mit Körper-Modell
International Journal of Vehicle Design ; 63 , 2/3 ; 119-136
2013
18 Seiten, 13 Bilder, 1 Tabelle, 28 Quellen
Article (Journal)
English
Automotive engineering | 2013
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