Browsing OSU - International Conference on Web Handling by Title
Now showing items 123-142 of 429
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Experimental study of idler roll slippage
(Oklahoma State University, 1999-06)Idler roll slippage occurs when the roll surface velocity no longer equals the velocity of the web that transports the roll. In a web transport system, slippage will produce scratches in sensitive, coated web or cause ... -
Experimental study of winding zone dynamics
(Oklahoma State University, 1997-06)The elastic nature of plastic films and the rotational inertia of rolls, spindles and drives cause a film handling line to exhibit the characteristics of a dynamic system. This dynamic response can be observed by measuring ... -
Explicit analysis of the lateral mechanics of web spans
(Oklahoma State University, 2011-06)All previous analyses of webs being steered through process equipment have required enforcement of assumed boundary conditions. An example is the normal entry boundary condition which has been employed in many web/roller analyses. -
Explicit analysis of the lateral mechanics of webs transiting concave rollers
(Oklahoma State University, 2011-06)All previous analyses of webs encountering spreading devices have required enforcement of assumed boundary conditions. An example is the normal entry boundary condition which has been employed in many web/roller analyses. ... -
Explicit simulations of cambered web steering
(Oklahoma State University, 2015-06)Cambered webs are common in the web handling industry. The mechanics analyses of stressed cambered webs have been reported by several publications [1]-[3]. The majority of the test data that exist demonstrate that cambered ... -
Explicit simulations of web transport through process machines using periodic media analysis technique
(Oklahoma State University, 2015-06)In this paper, the periodic media analysis (PMA) technique in Abaqus/Explicit [1] has been applied to simulate multiple cases of web transport through process machines. The Abaqus models for web transport developed in the ... -
Explicit simulations of wrinkle formation due to web non-uniformity
(Oklahoma State University, 2017-06)It is very common to laminate different materials together and then form, transport and process a web with non-uniform structure in the product manufacturing industry. The periodic media analysis (PMA) method in Abaqus/Explicit ... -
Exploring the strain transport formula
(Oklahoma State University, 2019-06)The strain transport formula relates the velocity of a moving web to its strain. It is based on the conservation of mass which, when applied to webs, becomes the conservation of relaxed length. Simply stated it says, the ... -
Factors that control run-ahead on printing presses
(Oklahoma State University, 1999-06)Run-ahead is a problem that occurs on printing presses where the paper rolls are braked by metallic bands applied to their periphery. Run-ahead occurs when the web in contact with the band decelerates faster than the roll, ... -
Fast winder change with reduced influence on film tension
(Oklahoma State University, 2015-06)For a 2 station turret winder it is shown that the film length increases at winder change (turret rotation, cutting arm movement und contact roller movement). It is shown how this change in length must create a change of ... -
Film surface considerations for enhanced winding of thin films
(Oklahoma State University, 1997-06)The primary defect for thin films ( < 25μm ) consists of sinusoidal ridges that run around the wound roll of film. Previous work has shown that these defects are buckles caused by compressive stresses in the transverse ... -
Finite element analysis of winding nip mechanics
(Oklahoma State University, 2009-06)Wound-on-Tension (WOT) is the tension in the outermost layer of a winding roll that is created due to the incoming web tension and the tension induced by the nip roller called Nip-Induced-Tension (NIT). This paper presents ... -
Finite element simulation of shear slitting of aluminum webs
(Oklahoma State University, 2003-06)A three-dimensional finite element (FE) procedure has been developed to simulate shear slitting using ABAQUS/Explicit, and the process of shear slitting has been investigated for aluminum webs obeying elastic-plastic ... -
Flutter mechanism of sheet
(Oklahoma State University, 1991-05)Basic study has been conducted on sheet flutter which becomes an obstacle to the operation of printing machines and paper making machines in higher speed. Following three topics are presented in this paper. -
Free vibration analysis of thin, tensioned, helically wrapped webs using Mindlin-Reissner finite element method
(Oklahoma State University, 2007-06)Free vibration analysis of a thin tensioned web, wrapped around a reverser was studied. The effect of helix angle was considered. The eigen-problem was formed using finite elements and solved numerically. Design parameters ... -
Friction characteristics between thin plastic film and steel roller
(Oklahoma State University, 2015-06)To establish the Roll-to-Roll Printed Electronics, which can be applied to manufacture the high functional thin film based devices, it is needed to combine the Roll-to- Roll transportation system and coating technology ... -
From predictive models to profitability in the web-handling industry
(Oklahoma State University, 1995-06)This paper attempts to put some of the work being done by researchers in the web-handling field, including some of the papers to be presented at this conference, into a broader business context. Various ways of utilizing ... -
Fully nonlinear solution to the stresses inside wound rolls
(Oklahoma State University, 1999-06)The Hakiel approach has been the accepted method for calculating stresses in wound rolls. It determines the stress in rolls by summing the stress induced by wraps of film applied to the roll surface. This approach is called ... -
Fully R2R gravure printed smart tags and related web handling challenges
(Oklahoma State University, 2013-06)Although a smart tag which can communicate with a smart phone via NFC (Near Field Communication) has been considered as a core tool for bringing up the ubiquitous society, the difficulties in integrating 13.56 MHz RFID ... -
Future online concept for roll and sheet production in papermaking technology and process requirements for web handling
(Oklahoma State University, 2003-06)The process of on-line converting is discussed as a chance to increase the productivity and quality in roll and sheet converting in paper mills. In this article the technical and process related prospects will be presented ...