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http://dx.doi.org/10.5050/KSNVE.2015.25.6.414

Torsional Vibration Phenomenon due to Pulse Torque of Variable Speed Induction Motor on Rotating Systems  

Lee, Donchool (National Maritime University)
Vuong, QuangDao (National Maritime University)
Nam, Taekkun (National Maritime University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.25, no.6, 2015 , pp. 414-419 More about this Journal
Abstract
Recently, commercial ships and other specialized vessels with electric propulsion system employ variable speed induction motor as its prime mover. The wide application of electrical motors also includes being the main drive system in most industrial machineries. However, during its start-up, shutdown, and brake switch operation, excessive torque variation are generated. As such, flexible coupling are installed in order to reduce the transmitted torque fluctuation to the driven side. In this paper, the pulse torque generated by an variable speed induction motor was analyzed theoretically and through measurement of torsional vibration. Induction motor with inverter on marine propulsion system and industrial compressor were used as experimental subjects. The study confirmed that pulse torque are generated regardless of motor speed and interpreted as a vibration source of the whole system. Results presented herein can be adopted as the basis in future amendment of inspection classifying body regulations.
Keywords
Pulse Torque; Rotating Systems; Torsional Vibration; Variable Speed Induction Motor;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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