Equivalent Single Wheel Load(ESWL)
Equivalent Single Wheel Load(ESWL)
To maintain the maximum wheel load distribution within a specified range and to carry the greater load it is very important to provide dual wheels at both the ends of the rear axles of commercial vehicles. Hence the loading effect of dual wheels is not twice the effect of one wheel but less than that.
For checking the effect of dual wheels let
d = clear distance between two wheels
S = spacing between the centers of wheels
a = radius of the circular contact area.
Hence S = d + 2a
Up to depth d/2 both wheel loads are acting independently but below this point, they start overlapping.
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