| 摘要 |
PROBLEM TO BE SOLVED: To sharply reduce the number of prototypes by indicating the relation between the friction factor and slip ratio of a tire as a specific equation, determining coefficients from measured values, generating and referring an element technical table, and experimentally manufacturing and testing the experimental tire through simulation. SOLUTION: The relation between the friction factorμand slip ratio S of a tire is stored as an equationμ=(aSb-c)exp(-Sd)+c.exp(Se), where(a), (b), (c), (d), (e) are coefficients (111). Relations between the friction factorμand slip ratio S of tires of many kinds are measured to determine the coefficients (a)-(e) (112, 114). An element technical table is generated from relations between the determined coefficients and the types of tires (114). Friction characteristics matched with development needs are determined by simulation in reference to the element technical table, and an experimental tire having the friction characteristics is experimentally manufactured and tested (117-119). Many prototypes are not required to be manufactured, and the development cost can be suppressed.
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