Mechanics of rotating wound rolls

Raghavan Balaji, Eric M. Mockensturm

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we investigate the effect of rotation on the internal loads in a wound roll and the dynamics of a fully wound roll under angular acceleration. Two different types of winding are distinguished: constant transport speed and constant rpm. The original scheme proposed by Benson accounted for large deformation, and used a nonlinear elastic constitutive law; in this paper, the Benson model is first expressed in dimensionless form and extended to account for roll rotation in both cases: constant rpm and constant transport speed. Additionally, tangential dynamics are considered to account for angular acceleration of a fully-wound roll. In general, it is seen that the inclusion of angular velocity in the Benson model alters the lap deformation, interlayer pressure and lap tension profiles compared to the case with no rotation, to an extent determined by the magnitude of angular velocity. A direct consequence of this is that there is now an upper bound on the number of laps that can be safely wound onto the core without loss of contact between the outermost laps, and this is a function of rotational speed and wrapping tension, among other parameters. A numerical algorithm is then described to account for angular acceleration due to a constant core torque applied after the roll has been completely wound. This allows one to determine the slip profile through the roll at various instants during the motion.

Original languageEnglish (US)
Title of host publicationProceedings of 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006 - Applied Mechanics Division
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Print)0791837904, 9780791837900
DOIs
StatePublished - Jan 1 2006
Event2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006 - Chicago, IL, United States
Duration: Nov 5 2006Nov 10 2006

Publication series

NameAmerican Society of Mechanical Engineers, Applied Mechanics Division, AMD
ISSN (Print)0160-8835

Other

Other2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006
CountryUnited States
CityChicago, IL
Period11/5/0611/10/06

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Mechanics of rotating wound rolls'. Together they form a unique fingerprint.

Cite this