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Centrifugal Effects In Inflated, Rotating Bias-Ply Tires, Joseph Walter
Centrifugal Effects In Inflated, Rotating Bias-Ply Tires, Joseph Walter
Dr. Joseph D. Walter
An equation is derived which governs the dynamic equilibrium contour taken by an inflated and rotating, but otherwise unloaded, bias-ply tire. This equation, which is in the form of a hyperelliptic integral, is based on the membrane theory of shells and the netting analysis of composite materials. Results are obtained for the meridional geom etry of a typical two-ply automobile tire, which are in reasonable agreement with ex perimental measurements. This integral, which describes the dynamic equilibrium contour of the tire, is then used to obtain an algebraic cord load formula. The formula shows how the cord tension at any …
A Tirecord Tension Transducer, Joseph Walter
A Tirecord Tension Transducer, Joseph Walter
Dr. Joseph D. Walter
A transducer is described which can directly measure the cord tension at any point in an arbitrarily loaded tire. Cord force data obtained at the crown and in the sidewall for a typical two-ply automobile tire are presented for: (1) the inflation problem, (2) the static deflection problem, and (3) the rolling tire. Agreement between theory and experiment is good for the inflation problem, which is the only case where a cord load formula exists to allow comparison.