Method for generating tire model

A method for generating a three-dimensional tire model by the use of a computer is disclosed. The tire model is of an analysis object which is a part of or the entirety of an annular tire curved around the tire revolution axis. A primary tire model made up of three-dimensional elements, and linearly modeling the curved analysis object not to curve around the tire revolution axis, is defined. Then, the primary tire model is transformed into a finish tire model curved around the tire revolution axis correspondingly to the curved analysis object.