000 01350nam a2200181Ia 4500
008 220216s9999 xx 000 0 und d
100 _aPillai P S
245 0 _aFootprint shape and component stiffness on rolling resistance of tyre
260 _bNatural Rubber Research
_c2004
300 _a17-Sep
520 _aA combined analysis of the two equations for rolling resistance R, one based on the whole tyre hysteresis ratio and a second one based on the tyre spring rate, indicated that the tyre parameters namely, the hysteresis ratio (h), the footprint dimensions width (w) and area (A) and the radial stiffness (K) were the first order effects that affect the rolling resistance. The rolling loss reduction with reduced tread width was explained by the footprint shape term (w/A) rather than by the tyre weight loss values. The K was partitioned into component stiffness values. The K value was approximately equal to 8 per cent of tread stiffness K(t), 15 per cent of carcass stiffness K(c) and 75 per cent of inflation pressure stiffness K(a) for a P195/75R14 size tyre for its working pressure range (207-262kPa). The K(a) term was evaluated for the first time for this tyre.
650 _aComponent stiffness
650 _aFootprint shape
650 _aRectangularity
650 _aRolling resistance
650 _aTyre
942 _cJS
999 _c59512
_d59512