Sikhakhane, Phakamani LJoni, Emmanuel LMokgotho, Lebone YModungwa, Dithoto M2026-09-232026-09-232026-09http://hdl.handle.net/10204/14950Off road vehicle suspension performance directly affects ride behaviour, structural loading, and vehicle control under irregular terrain excitation. This paper presents a cross-platform computational framework for analyzing the vertical dynamic response of a quarter-vehicle suspension system using three modeling approaches: a reduced-order MATLAB model and multibody models in Project Chrono and MSC ADAMS. A common suspension definition and terrain input were used to compare sprung mass displacement, unsprung mass displacement, suspension travel, and sprung mass acceleration. MATLAB and Project Chrono show the closest agreement. while MSC ADAMS predicts a smoother, more damped response. The framework provides a practical basis for comparing modelling fidelity in quarter vehicle suspension analysis under off-road excitation.FulltextenOff-road vehicle suspension performanceVertical dynamic responseQuarter-vehicle suspension systemSprung mass displacementSuspension travelSprung mass accelerationFidelityOff-road excitationConference Presentationn/a