| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling resistance prediction method capable of accurately predicting a rolling resistance. <P>SOLUTION: The rolling resistance prediction method comprises a step S11 of measuring viscoelastic characteristics of a rubber member in a tire by means of a test, a step S12 of calculating a viscoelastic coefficient by approximating the viscoelastic characteristics of the rubber member by a fractional derivative model based on the measured data obtained at the step S11, a step S13 of producing a tire model by modeling the tire with plural elements, and a step S14 of calculating a forward/backward force acting on the produced tire model as a rolling resistance of the tire, through an analysis of rolling the produced tire model on a road surface model. At the step S13, the tire model is produced in such a manner that the viscoelastic coefficient approximated by the fractional derivative model at the step S12 is used as the element corresponding to the rubber member. <P>COPYRIGHT: (C)2012,JPO&INPIT |
