G - Physics – 01 – M
Patent
G - Physics
01
M
G01M 17/02 (2006.01)
Patent
CA 2554124
An apparatus and related methods for capturing a digital foot print image of a tire and for extrapolating load-deflection curves of the tire is presented. A frame carries a test pod that is coupled to a tire to perform various tests. In one application, a loading plate couples the tire to a transparent plate on the test pod where a camera captures a digital gray-scale image of the tire foot print. A processor converts the gray- scale image into a pressure map wherein each pixel of the digital image is correlated to a pressure value. In another application, the loading plate couples the tire to a sliding cover plate on the test pod, wherein the loading plate is incremented through a plurality of load values at predetermined inflation pressures. By using, two inflation pressures, the processor extrapolates further load-deflection curves for the tire at other inflation pressures. The apparatus also provides a unique way for imparting camber on the tire during the above tests. The data collected from the foot print image and load- deflection curves may be used to analyze the construction, operation, noise generation characteristics and performance of the tire.
Chen Fu-Min
Indorf Wayne A.
Macioce Richard J.
Olesky Stanley J.
Popio James A.
Bridgestone Firestone North American Tire Llc
Bridgestone/firestone Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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