Browsing Proceedings of the International Conference on Web Handling by Title
Now showing items 323-342 of 429
-
Simplified model for lateral behavior of short web spans
(Oklahoma State University, 2001-06)For ratios of L/W less than approximately 2.0, the effects of shear stresses on the shape of a web must be considered. In basic manufacturing and processing of webs, such ratios are very common. The analysis of a general ... -
Simulation of wrinkling patterns in webs due to non-uniform transport conditions
(Oklahoma State University, 1993-06) -
Spatially dependent transfer functions for web lateral dynamics
(Oklahoma State University, 2017-06)In this paper we derive spatially dependent transfer functions for web span lateral dynamics which provide web lateral position and slope as outputs at any location in the span; the inputs are guide roller displacement, ... -
Static and dynamic properties of CFRP rollers
(Oklahoma State University, 2009-06)Carbon fiber rollers combine high axial stiffness with low weight. This leads to higher bending frequencies and increased critical speed and makes them suitable for high speed machines as web guide rollers or as other ... -
Stick-slip behavior of paper during friction testing
(Oklahoma State University, 1995-06)Paper often exhibits oscillatory stick-slip motion during friction testing using a horizontal sled apparatus. The motion consists of a constant-amplitude oscillation in the force required to move the sled, which may ... -
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 ... -
Strategies for competitiveness
(Oklahoma State University, 2003-06) -
Stress field in a web during slitting-opening mode
(Oklahoma State University, 1999-06)The dynamic stress field in a web during slitting is presented for the opening mode appropriate for razor slitting in the steady state. The integral equations for the general stress and strain fields in a web near a razor ... -
Stresses within rolls wound in the presence of a nip roller
(Oklahoma State University, 1991-05)Models which can be used to calculate the internal stresses within wound rolls of web material have all been confined to the center winding technique to date. In this publication a new boundary condition is presented which ... -
Strip tension control considering the thermal strain in multi-span systems with temperature change
(Oklahoma State University, 2001-06)The mathematical model for tension behaviors of a moving web by Shin [1] is extended to the tension model considering the thermal strain due to temperature variation in furnace. The extended model includes the terms that ... -
Strip walk simulation for continuous processing lines
(Oklahoma State University, 1993-06)Although the prevention of lateral instability on continuous processing lines called "strip walk" is important in achieving high productivity and improving quality for steel industry, empirical systems have been applied ... -
Structural evaluation of roll quality and in-roll stress analysis using a novel on-line measurement technique
(Oklahoma State University, 2001-06)In a previous paper (Jaafar et al., 1999) we reported on the rudimentary development of a new technique for the on-line measurement of a roll's coefficient of restitution (Cr) as it is being wound, and enunciated the ... -
Study of CD elongation of core in winding
(Oklahoma State University, 2003-06)In this paper the elongation of a core in a roll bottom is studied experimentally and theoretically. The CD elongation effects are of interest especially because they are known to contribute prominently to a two-drum winder ... -
Study of oscillation
(Oklahoma State University, 2017-06)There are many reasons to consider oscillation. Most fall under the overall desire to smear out streakiness in web caliper (basis weight, gage, thickness etc) so that it doesn't build up on some downstream process; most ... -
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. ... -
Study of three-dimensional nonlinear nip mechanics
(Oklahoma State University, 1993-06)An understanding of nip pressure and deformed nip geometry is of vital importance to the design of web handling equipment. Axial variations in nip pressure and deformed nip geometry can lead to poor product performance and ... -
Study on strip crossbow correction for uniform coating weight control
(Oklahoma State University, 2015-06)In coating process of continuous galvanizing line, transverse crossbow is frequently found in the case of thick gage or high strength steel processing. This transverse crossbow arises due to the unbalanced residual stress ... -
Surface compression of wound rolls
(Oklahoma State University, 2013-06)Stress levels and profiles in the vicinity of contact between a wound roll and a nip or a rigid surface are important for the quality of the product during manufacturing or storage stages. Excessive or insufficient pressure ... -
Systematic method for determining the controller gains in a multi-span web line
(Oklahoma State University, 2019-06)A web line may have multiple locations where feedback systems are used to control web and roller speeds, and web tension. The Euclid Web Line (EWL) in the Web Handling Research Center at Oklahoma State University is such ... -
Systems approach to reducing winding defects at Alcoa-Warrick operations
(Oklahoma State University, 1997-06)When processing coated aluminum, coil winding defects can be a major detractor to recovery, flowtime, and customer satisfaction goals for coil coating and slitting operations. Over the past several years, extensive studies ...