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http://dx.doi.org/10.5762/KAIS.2019.20.8.279

A Study on the Structural Reinforcement for the Reduction of Transverse Vibration by Ship's Main Engine  

Shin, Sang-Hoon (Department of Aero Mechanical Engineering, Kyungwoon University)
Ko, Dae-Eun (Department of Naval Architecture and Ocean Engineering, Dong-Eui University)
Im, Hong-Il (Ship Outfitting Research Department, Hyundai Heavy Industries Co., Ltd)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.8, 2019 , pp. 279-285 More about this Journal
Abstract
Transverse vibrations of a ship's aft end and deckhouse are mainly induced by transverse exciting forces from the main engine. Resonance should be avoided in the initial design stages when there is a prediction of resonance between the main engine and transverse modes of the deckhouse. Estimates of frequencies for resonance avoidance are possible from the specifications of the main engine and propeller, but the inherent vibration frequency of the structure around the engine room is not easy to estimate due to the variation in the shape. Experience-oriented vibration design is also carried out, which results in many problems, such as process delay, over-injection of on-site personnel, and iterative performance of the design. For the flexible design of 8,600 TEU container vessels, this study addressed the resonance problem caused by the transverse vibration of the main engine when only the main engine was changed from 12 cylinders to 10 cylinders without modification of the hull structure layout. Efficient structural reinforcement design guidelines are presented for avoiding resonances with the main engine lateral vibration and the structure around the engine room. The guidelines are expected to be used as practical design guidelines at design sites.
Keywords
Transverse Vibration; Exciting Forces; Avoidance of Resonance; Structural Reinforcement; Design Guideline; Intial Design Stage;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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