Development of the Measurement Method of a Rotating Tire Surface Strain

Abstract

To know the surface strain of a rotating tire at high speed has been requested from the former, not only to design the tire construction or tire material but also to verify FEM analysis results. We adopted Sampling Moire Method to measure the rotating tire sidewall strain when cornering and braking. This method, taken by two separate cameras at the same time the portion attached with grid sheet and analyzed the images can be gained the 3D shape. With this method, we can measure the tire deformed shape and surface strain with practical accuracy.