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research-article

Stability Analysis of Moving Printing Web with Sine Half-wave Variable Density Based on Differential Quadrature Method

[+] Author and Article Information
Jimei Wu

Faculty of Mechanical and Precision Instrument Engineering and Faculty of Printing. Packing and Digital Media Engineering, Xi'an University of Technology, Xi'an 710048, China
wujimei1@163.com

Mingyue Shao

Faculty of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China
shaomingyue_xaut@163.com

Yan Wang

School of civil engineering and architecture, Xi'an University of Technology, Xi'an 710048, China
wyaiyh@163.com

Qiu-min Wu

Faculty of Printing. Packing and Digital Media Engineering, Xi'an University of Technology, Xi'an 710048, China
wuqiumin@xaut.edu.cn

Fan Zhao

Faculty of Printing. Packing and Digital Media Engineering, Xi'an University of Technology, Xi'an 710048, China
vcu@xaut.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4037137 History: Received September 23, 2016; Revised May 27, 2017

Abstract

The moving web is widely used to make printing and packaging products, flexible electronics and cloth etc. The impact of the variable density on printing web dynamic behavior is considered. The density changes in the form of sine half-wave in the lateral direction. Based on the D'Alembert's principle the transverse vibration differential equation of moving printing web with variable density is established and is discretized by using the differential quadrature method (DQM). The complex characteristic equation is derived. The impacts of the density coefficient and the dimensionless speed on the web stability and vibration characteristics are discussed. The results show that it is feasible to use the DQM to analyze the problem of transverse vibration of printing web with varying density, the tension ratio and the density coefficient have important impacts on the stability of moving printing web. This study provides theoretical guidance and basis for optimizing the structure of printing press and improving the stable working speed of printing press and web.

Copyright (c) 2017 by ASME
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