Mathematical model of suspensions together with its geometrical dimensions has been presented in this paper. It is a 6 mass discreet dynamic system with 36 freedom grades. Its concentrated masses are connected by elastic and attenuating elements of non-linear characteristics. Apart from springs and silencers there are also wheel guiding elements (rockers, lateral control rods, etc.). The model is activated to vibrations by road unevenness. Input functions are of stochastic nature. Changes of many element parameters of the model were taken under consideration in simulating examinations (type of suspensions, mass distribution, stiffness and attenuation characteristics changes, etc.). The results were presented in a graphic form together with comparative analysis.
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