Browsing OSU - International Conference on Web Handling by Title
Now showing items 191-210 of 429
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Machine and transverse direction errors in webs: Diagnosis and remedies
(Oklahoma State University, 2013-06)The primary focus of web handling is often on tension control; however, equally important to almost any web handling or winding process is to maintain machine (MD) and transverse direction (TD) control of the web. This ... -
Machine direction laminate curl control
(Oklahoma State University, 1999-06)Machine Direction Curl is a phenomenon that develops sometime after a finished laminate is allowed to relax. The root causes of this eventual curl are due primarily to the recovering of strain, in either or both Strips A ... -
Machine direction registration dynamics model of a rotary printing press
(Oklahoma State University, 2017-06)We derive an analytical model of the machine direction registration dynamics of a continuous-web, electronic line shaft (ELS) rotary printing press. We use the model to quantify the affect of tension disturbances on machine ... -
Macroscopic effects of surface roughness in confined air-flow
(Oklahoma State University, 2003-06)One challenge when processing flexible media such as plastic films is to obtain rolls without any aspect defect : if one considers that a "defect" (i.e. wrinkling or buckling) is due to the fact that the stress generated ... -
Managing technology
(Oklahoma State University, 1997-06)What changes constantly, is optimized with difficulty, and cannot be bought or sold; yet without it, making web based products is impossible? The answer: Web Handling Technology. Ten years ago 3M established a Web Handling ... -
Manufacturing and performance evaluation of carbon nanotube-parylene sandwich thin films
(Oklahoma State University, 2007-06)Parylene-C, an inert and relatively mechanically strong polymer, which can be deposited in a conformal manner, is a promising substrate candidate for flexible electronics (Flextronics) devices. Parylene-CNT sandwich-films ... -
Mathematical and experimental investigation of the stack compression of films
(Oklahoma State University, 1993-06)An analytical model has been developed which predicts the stack stiffness of multiple layers of films with rough surfaces. Film surfaces are approximated by asperity distributions measured using commercially available ... -
Matrix interpolation based self-tuning web tension regulation
(Oklahoma State University, 1995-06)A self-tuning control scheme is proposed for tension regulation in a web transport system. A matrix interpolation based computationally efficient self-tuning method is first described. The frequency domain model of the ... -
Measurement and control of the tension distribution across the web in a newspaper printing press
(Oklahoma State University, 1991-05)A bending moment in a newsprint web caused by unevenly distributed tension across the web leads to disturbances in the production. Measurements in a printing press during newspaper production showed large variations in the ... -
Measurement and modeling of bearing drag in idler rollers
(Oklahoma State University, 1997-06)Idler roller bearing drag plays a critical role when modeling web tension in a web line system. Lubrication, line speed, radial and axial loads on bearings can influence drag, which is directly reflected as a tension load ... -
Measurement and prediction of the centering effect of a profiled roll on steel strips
(Oklahoma State University, 1999-06)In a steel continuous processing line, the strip passes over an important number of rolls and strip walking can occur due to strip defects, roll profile or roll misalignment. Since decades, two solutions are used in order ... -
Measurement and quantification of baggy webs
(Oklahoma State University, 2017-06)Webs that have crossweb variation in machine direction length are commonly called "Baggy Webs". All real webs have some degree of bagginess. When the bagginess exceeds some quantity, web handling problems such as wrinkling ... -
Measurement of nip induced tension and contact stresses
(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). Kandadai and Good ... -
Measurement of web curl
(Oklahoma State University, 2017-06)Generally it is desirable for web based products to have a flat planar shape. Unfortunately coated and laminated products often assume a curved shape. This is a defect commonly called "Curl". The first step in solving most ... -
Measurement of web feed rates in rubber covered nip roller applications and the impact on wrinkle formation
(Oklahoma State University, 2011-06)Nip rollers are used extensively in web handling processes; however, rubber-covered rollers have the unwanted and often unpredictable characteristic of unknown surface speed owing to coupling between circumferential and ... -
Measurement of web surface profiles using fringe projection
(Oklahoma State University, 2009-06)In this paper a full-field measurement technique, namely fringe projection technique was implemented to determine the three-dimensional surface profile for situations where webs are opaque or translucent. In this method, ... -
Measurement of web tension distribution by point source pulse excitation
(Oklahoma State University, 1993-06)A web is a material that is produced as a continuous sheet and stored in wound roll form. Mechanics of web material handling in production, coating or conditioning, and winding operations affect web uniformity and the ... -
Mechanical states in wound heterogeneous tapes by the finite element method
(Oklahoma State University, 1991-05)The problem of predicting the mechanical stress and deformation states in wound tapes that result from the winding process addressed by application of the finite element method. The generally heterogeneous tape construction ... -
Mechanical stress states in heterogeneous, wound rolls
(Oklahoma State University, 1991-05)This paper presents a method of predicting the internal stress states in rolls simultaneously wound with independent supply spools of dissimilar material. The method is based on linear, orthotropic behavior of the mandrel ... -
Mechanics of a cylindrical flexible web floating over an air-reverser
(Oklahoma State University, 1999-06)The mechanics of the fluid/structure interaction between a thin flexible web, wrapped around a cylindrical drum (reverser), and the air cushion formed by external pressurization through the holes of this drum is analyzed. ...