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Vol. 181, Issue 10, October 2014, pp. 210-218

 

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Dynamics Analysis and Modeling of Rubber Belt in Large Mine Belt Conveyors
 

Gao Yang

College of Mechatronic Engineering, Beifang University of Nationalities, China
Tel.: 18009595561

 

Received: 9 July 2014 /Accepted: 30 September 2014 /Published: 31 October 2014

Digital Sensors and Sensor Sysstems

 

Abstract: Rubber belt not only is one of the key components of belt conveyor, but also affects the overall performance of the core part. Research on dynamics analysis of large conveyor not only helps to improve the reliability and design level, but also can guide the rational selection of conveyor safety factor, and effectively reduce the cost of the conveyor belt. Based on unique viscoelastic properties of belt conveyor, it was simplified as one-dimensional viscoelastic rod in this study, and then a discrete element model of conveyor systems was established. The kinetic equations of each discrete unit was derived using kinetic energy, potential energy of driving segment, bearing segment and return segment and equation of energy dissipation and Lagrange equation. Based on Wilson-q algorithm, the kinetic equation of DT1307-type ST2000's conveyor belt was solved by using Matlab to write computer programs. Research on the change rule of conveyor displacement, velocity, acceleration and dynamic tension during the boot process revealed the working mechanism of nonlinear viscoelastic, which lay the theoretical foundation for dynamic performance optimization of large belt conveyor. The calculation results were used to optimize design and analysis of conveyor system, the result showed that it could reduce the driven tension peaks about 12 %, save 5 % of overall manufacturing cost, which bring considerable profits for enterprises.

 

Keywords: Belt conveyor, Rubber belt, Discrete element model, Dynamics analysis.

 

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