METHOD AND APPARATUS FOR MEASUREING CHANGE OF FORCE IN TOKYO DIRECTIONS CAUSED BY TIRE UNIQUE

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a measuring method and apparatus for accurately measuring the magnitude of change in force acting in the radial direction and the circumferentially nonuniform position of a tire, which may occur due to tire uniformity, and using a tire pneumatic cylinder. The load change, the force change by the tire is evaluated by measuring the displacement of the pneumatic cylinder, the spring constant of the tire is obtained from the relationship between the load and the displacement, and the vibration of the tire harmony component in the natural frequency range of the pneumatic cylinder according to the tire speed. It is to measure and analyze the tire non-uniform characteristics by measuring the.