ANALYSIS MODEL OF BEAD PART OF TIRE, TIRE MODEL, VEHICLE BODY MODEL, ANALYSIS METHOD FOR BEAD PART OF TIRE, BEHAVIOR SIMULATION METHOD FOR TIRE, BEHAVIOR ANALYSIS PROGRAM OF TIRE, AND RECORDING MEDIUM RECORDING BEHAVIOR ANALYSIS PROGRAM

摘要

PPROBLEM TO BE SOLVED: To perform analysis of a bead part with high precision in analysis of a tire. PSOLUTION: The bead part is cut out from the actual tire to test bead rigidity such as twisting and pulling-out (steps 120, 122). The bead part is determined into a simplified finite element model whose cross section is composed of one or several finite elements and is defined by an anisotropic material to adjust Young's modulus and Poisson's ratio of the anisotropic material so that reaction force such as twisting and pulling-out when performing analysis agrees with actually measured reaction force (step 124). A value (Young's modulus and Poisson's ratio in each direction) of this result is inputted at the next step 126 as material constant. In this way, the bead part of the anisotropic material defined by Young's modulus and Poisson's ratio can realize material property equal to an actual bead even in the simplified finite element model. PCOPYRIGHT: (C)2006,JPO&NCIPI