Hemanth, K.Kumar, H.Gangadharan, K.V.2026-02-052017Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2017, 39, 1, pp. 41-5116785878https://doi.org/10.1007/s40430-015-0481-7https://idr.nitk.ac.in/handle/123456789/25823This paper presents ride comfort and road holding analysis of passive and semi-active suspension system using quarter car model. Semi-active suspension system with magnetorheological (MR) damper was modeled as non-parametric model-based magnetic flux density in the fluid flow gap. The skyhook control strategy was used to analyze semi-active control performance. The simulation of passive and semi-active suspension system was carried out under random road profile for different velocities. The result shows that semi-active suspension has significant improvement in terms of ride comfort and road holding of vehicle than passive suspension system. Experimental studies have been conducted to characterize MR damper and a good match is observed between results with simulation results obtained using non-parametric model. © 2016, The Brazilian Society of Mechanical Sciences and Engineering.Active suspension systemsAutomobile suspensionsDampingFlow of fluidsMagnetic levitation vehiclesModel automobilesRoads and streetsSuspensions (fluids)TransportationMagneto-rheological dampersMR dampersNon-parametric modelPassive suspension systemRide comfortsSemi active suspensionSemi-active suspension systemsSky-hook controlsSuspensions (components)