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FSI(Fluid-Structure Interaction) Analysis for Harmonious Operation of High-Speed Printing Machine
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 Title & Authors
FSI(Fluid-Structure Interaction) Analysis for Harmonious Operation of High-Speed Printing Machine
Kim, Jin-Ho; Lee, Jae-Woo; Park, Soo-Hyung; Byun, Do-Young; Byun, Yung-Hwan; Lee, Chang-Jin;
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 Abstract
Proper amount of entrained air and nip force should be also considered to minimize ballooning phenomenon since tight contact between a roller and web is required. In this paper, various web materials, PET(Polyester) and OPP(Oriented Poly Propylene) have been selected and investigated to satisfy high-speed printing requirement. Several web speeds, web tensions, and temperature conditions are imposed on each web materials and the pressure and gap profiles as well as nip force have been calculated. Increase of both the winding roller radius and the incoming wrap angle is considered under proper taper tension at 500 m/min of rewinding roller. By solving coupled Reynolds equation and web deflection equation simultaneously, the fluid-structure interaction process has been developed and is applied to the rewinding roller to investigate the ballooning phenomenon which causes guiding problems in high-speed printing performance conditions. By adjusting the linear taper tension, stress distribution between rewinding webs can be remarkably reduced and stable pressure and gap profile with ignorable ballooning phenomenon have been found.
 Keywords
Air Entrainment;Ballooning Phenomenon;Fluid-Structure Interaction;Incoming Wrap Angle;Nip Force;Taper Tension; Web;
 Language
English
 Cited by
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