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http://dx.doi.org/10.5916/jkosme.2016.40.7.580

Control of torsional vibration for propulsion shafting with delayed engine acceleration by optimum design of a viscous-spring damper  

Kim, Yang-Gon (Korea Register of Shipping)
Hwang, Sang-Jae (STX Heavy Industries Co., Ltd.)
Kim, Young-Hwan (Graduate School of Refrigeration and Air-Conditioning Engineering, Korea Maritime and Ocean University)
Kim, Sang-Won (ATS Co., Ltd.)
Cho, Kwon-Hae (Department of Offshore Plant Management, Korea Maritime and Ocean University)
Kim, Ue-Kan (Division of Mechanical Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.40, no.7, 2016 , pp. 580-586 More about this Journal
Abstract
The ultra-long stroke engine was developed to generate greater power at lower speeds than previous designs to enhance the propulsion efficiency. The torsional exciting force, on the other hand, was increased significantly. Therefore, it is possible to control the torsional vibration of its shaft system equipped with the fuel efficient ultra-long stroke engine by adopting a damper although the torsional vibration could be controlled adequately by applying tuning and turning wheels on the engine previously. In this paper, the dynamic characteristics of a viscous-spring damper used to control the torsional vibration of the corresponding shaft system are reviewed and then examined to determine what vibration characteristics might be used to optimize the viscous-spring damper. In some cases, operators of eco-ships have recently experienced the problem of delayed RPM acceleration. It has been suggested that the proper measures for controlling the torsional vibration in the shaft system should involve adjusting the design parameters of its damper determined by the optimum damper design theory to avoid the fatigue damage of shafts.
Keywords
Delayed engine acceleration; Viscous-spring damper; Fuel efficient ultra-long stroke engine; Optimum damper design theory;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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