Abstract
In this paper, we suggest an analytical model of an OR tire for running performances prediction, and report analysis of fundamental deformation behavior of a tire. The function of the OR tire was analyzed from the structure which divided in two blocks of tread department and sidewall department. The approximate polynomial expressions of the relationships of the load-deflection and also contact length-deflection were investigated by the load test. And two equivalent elastic moduli were estimated by the results. We consinhcted a discrete tire model by RBSM (Rigid-Bodies Spring Model). The calculation value of he RBSM tire model was inspected the fact in agreement with the chart. And we calculated static and treading states by using the RBSM tire model and clarified a part of fundamental deformation of a tire.
