Abstract
This paper describes theoretical and experimental studies of the velocity characteristics of a paper transport mechanism that consists of a short rubber-layered roller and a steel roller. The deformation and strain of surface of the driving rubber roller are numerically calculated based on Boundary Element Method by using Green's function that has been derived in the polar coordinates under the in-plane stress assumption. The effects of the normal load F and the paper tension T on the strain of the rubber roller are calculated. The velocity ratio of the paper transport velocity to the tangential velocity of the rubber roller is derived from the strain of the rubber roller. In order to verify the numerical results, an experimental setup of a friction drive mechanism for an endless paper was prepared. The paper transport velocity and the tangential velocity of the rubber roller were measured by changing the operating conditions. It was shown that the theoretical result can predict precisely the effect of the normal load F, the paper tension T and the rubber thickness on the velocity ratio in the range of-0.1?T/F?0.2 when 69°Hs rubber roller is used.
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