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http://dx.doi.org/10.21289/KSIC.2017.20.5.431

Sleet Jump Simulation of Power Transmission Line by Using Multi-Body Dynamics  

Kim, Ji-Wook (Graduate school of Department of Mechanical Design Engineering, Pukyong National University)
Sohn, Jeong-Hyun (Department of Mechanical Design Engineering, Pukyong National University)
Publication Information
Journal of the Korean Society of Industry Convergence / v.20, no.5, 2017 , pp. 431-439 More about this Journal
Abstract
Since the power transmission line(PTL) passes through the high mountain and heavy snowfall region, it is necessary to keep the stability of the PTL. In this study, PTL is modeled as a mass-spring-damper system by using RecurDyn. The lumped mass model is verified by calculated from the simulation comparing the deflection analysis according to the sag and tension. In order to analyze the dynamic behavior of PTL, a damping coefficient for a multi-body model is derived by using the free vibration test and Rayleigh damping theory. Sleet jump simulation according to the region is performed. The maximum jump height, icing sag and amount of jump are confirmed. Also, the amount of jump and the reaction force at the supporting point according to the tension and load of ice are analyzed, respectively. As a result, it is noted that the amount of jump and reaction force are influenced more by the load of ice than by the tension of PTL.
Keywords
Power Transmission Line; Rayleigh Damping; Sleet Jump; Multi-body Dynamics;
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