As temperature distribution forecasting manner of the tire and the stress analytic model which consists of with

摘要

PPROBLEM TO BE SOLVED: To provide a method capable of accurately predicting temperature distribution of a tire during traveling. PSOLUTION: In this temperature distribution prediction method, a rolling analysis is performed in a three-dimensional tire model, and stress and strain amount of each portion of a tire are calculated. Heat generation distribution of the tire using the stress, the strain amount, and tan δ of a rubber member, thermal analysis calculation is performed using a thermal analysis model to predict the temperature distribution of the tire. After stress and the amount of strain is calculated again using a new analysis model M(k) in which the element of each rubber member of the tire model is given an elasticity modulus at a predicted temperature of the element, thermal analysis calculation is performed using a thermal analysis model G(k) with a new heat generation distribution P(k) obtained using the stress, the amount of strain, tan δ at a predicted temperature, operations for predicting the temperature distribution F(k) of a new tire is repeatedly performed until the difference between temperature distribution F(k-1) and F(k) becomes within 5%. PCOPYRIGHT: (C)2007,JPO&INPIT