3. Experimental Design and Data AnalysisThe Taguchi method for experimental design is easy to apply to many engineering problems as it allows the analysisof many parameters without high amount of experimentation. It helps in identification of key parameters that affect the performance and the parameters that have little effect are neglected. Taguchi technique creates a standard orthogonal array to evaluate the effects of design parameters on the response value in an unbiased manner [9]. The use of orthogonal arrays minimizes the number of total experimental runs such that the conclusions drawn from smallscale experiments are valid over an entire experimental region spanned by the control factors and their settings [10].The control factors in this paper are tyre pressure (typ), spring stiffness (k) and damping coefficient (c) each having 2 levels, high and low, as per the range of values they are most significant within as shown in Table 1.An L8 orthogonal array is utilized to study the effects of control factors on the response. The whole design is replicated twice in order to minimize the experimental error and a total of 16 runs were obtained.