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Wound roll generated unstable vibration on a two-drum winder
(Oklahoma State University, 2005-06)
Nip contact between the paper roll, winding drum and rider roll or some other nip roller may cause that the wound roll is deformed into a convex polygon. This deformation process is accompanied with a strong vibration. The ...
Study of stress-strain relation for paper roll
(Oklahoma State University, 2001-06)
In the present method a wound roll of paper is loaded against a nip roller and the measured values of the nip width and the roll indentation are compared with the corresponding calculated values of the non-linear problem. ...
Wound roll generated unstable vibration
(Oklahoma State University, 2003-06)
Nip contact between the wound roll and the winding drum, rider roll or some other nip roller may cause that the wound roll is deformed into a convex polygon. This deformation process is accompanied with a very strong ...
Strain-inducing mechanism of a rolling nip on a paper stack
(Oklahoma State University, 2003-06)
The rolling of a cylindrical drum on a stack of separate paper sheets is studied using the finite element method. A two dimensional model under plane strain conditions is considered. The material of the sheets is modeled ...
Development of web tension in a winding nip
(Oklahoma State University, 2001-06)
Today practically all winding devices apply a nip to the wound roll. In this winding method, radial pressure is applied by a winding drum to the wound roll at the point where the web enters the roll. This reduces the air ...