80K LPG 선박의 Cargo Pipe 진동 및 대책에 관한 연구
A Study on Cargo Pipe Vibration of 80K LPG Vessel and its Countermeasure
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초록
In this study, we proposed a method to measure and analyze the vibration problem in cargo pipes during the sea trial for 80K LPG vessel. Pipe vibration was identified as resonance with the propeller 1st order component, which is one of the main excitation forces in the normal continuous rating (NCR). In order to avoid resonance in the NCR, a reinforcement method was established through finite element method (FEM) analysis. In the future, the advance application of cargo pipe reinforcement is expected to be useful for reducing the vibration of the cargo pipes in ships whose order and specification are similar to those of the vessel used in this study.
Abstract
In this study, we proposed a method to measure and analyze the vibration problem in cargo pipes during the sea trial for 80K LPG vessel. Pipe vibration was identified as resonance with the propeller 1st order component, which is one of the main excitation forces in the normal continuous rating (NCR). In order to avoid resonance in the NCR, a reinforcement method was established through finite element method (FEM) analysis. In the future, the advance application of cargo pipe reinforcement is expected to be useful for reducing the vibration of the cargo pipes in ships whose order and specification are similar to those of the vessel used in this study.
참고문헌 (7)
- Korean Register, "Control of ship vibration and noise" (2014)
- "ISO6954, Second edition 2000-12-15, Mechanical vibration-Guidelines for the measurement, reporting and evaluation of vibration with regards to habitability on passenger and merchant ships", ~
- "ISO20283-5, first edition 2016-12-15, Mechanical vibration-Guidelines for measurement, evaluation and reporting of vibration with regards to habitability on passenger and merchant ships", ~
- J. S. Kim, "An Investigation on the Assessment Method of Ship’s Vibration Concerning Habitability", J. of the Korean Soc. for Noise and Vibration Engineering, pp.772~778 (2011)
- 유영훈, "선박의 선내 진동에 의한 승선 환경 평가에 관한 연구 (ISO-6954 : 2000(E)의 평가방법에 기초)", 해양환경안전학회지, 13(4), pp.107~112 (2007), 해양환경안전학회
- D. C. Lee, "Field Practicality Review and Revision Proposal in ISO 6954 : 2000", J. of the Korean Soc. for Noise and Vibration Engineering, pp.530~533 (2014)
- American Bureau of Shipping, "Guidance notes on Ship Vibration", 67~68 (2006)