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http://dx.doi.org/10.7837/kosomes.2020.26.6.587

A Study on the Hull Acceleration Analysis of Car Ferry Ship for Securing Safety Evaluation  

Yu, Yong Ung (Graduate school of Korea Maritime and Ocean University)
Lee, Yun-Sok (Department of Ship Operation, Korea Maritime & Ocean University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.26, no.6, 2020 , pp. 587-593 More about this Journal
Abstract
The securing safety of ferry ships on the domestic coast is evaluated by comparing the external force applied and the securing device based on the cargo weight and hull acceleration that can exist at the loaded position. The hull acceleration based on the domestic standard, which is the basis for securing safety evaluation, is applied without reflecting the characteristics of the ship and the sailing conditions. In this study, a total of 12 acceleration measurements were performed at four points of the hull of a ship with a DWT 6,800 ton class 15.5 knots passing through Busan-Jeju to analyze the hull acceleration of the domestic coastal ferry ship. Data were collected for the buoy. For a theoretical comparative analysis of the limited measurement results, the response amplitude operator (RAO) was analyzed through frequency-response analysis by numerical simulation, and acceleration analysis for the four points was performed using the RAO results. Based on the acceleration comparison, differences in the degree of each position were observed, but in the case of the Y-axis acceleration, the analysis was 1.81 m/s2, and the measurement was 1.47 m/s2. The analyzed simulation result was as high as 0.34 m/s2. Moreover, analysis was performed at 22 % level, and measurement at 18 % level.
Keywords
Coastal car ferry; Hull acceleration; Measurement; Numerical simulation; Cargo securing;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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1 Choung, J. M, H. S. Jo, K. H. Lee, and Y. W. Lee(2016a), Study on Structural Safety of Car Securing Equipment for Coastal Carferry: Part I Estimation of Hull Acceleration using Direct Load Approach, Journal of Ocean Engineering and Technology, Vol. 30, No. 6, pp. 440-450.   DOI
2 Choung, J. M., H. S. Jo, K. H. Lee, and Y. W. Lee(2016b), Study on Structural Safety of Car Securing Equipment of Coastal Carferry: Part II Assessment of Lashing Safety according to Acceleration Prediction Approaches, Journal of Ocean Engineering and Technology, Vol. 30, No. 6, pp. 451-457.   DOI
3 Hwang, J. W., S. G. Yang, C. Y. Hong, and J. W. Park(2004), Development of Lashing Analysis Simulator for Container Vessel. Proceedings of 2004 Spring Conference of the Korean Society of Ocean Engineers, pp. 90-95.
4 IMO(2011), International Maritime Organization, Code of Safe Practice for Cargo Stowage and Securing, Annex 13, pp. 3-13.
5 IMO(2018a), International Maritime Organization, Sub- Committee on Carriage of Cargoes and Containers, 5th session, Agenda item 7.
6 IMO(2018b), International Maritime Organization, Sub- Committee on Carriage of Cargoes and Containers, 6th session, Agenda item 7.
7 Kang, B. S., C. H. Jung, and D. B. Kim(2020), A Study on Lashing Standards for Car Ferry Ships Sailing in Smooth Sea Areas, Journal of the Korean Society of Marine Environment & Safety Vol. 26, No. 1, pp. 1-7.   DOI
8 Kim, D. H., S. M. Lee, and G. Y. Kong(2013), A Study on the Wireless Ship Motion Measurement System Using AHRS, J. Navig. Port Res., Vol. 37, No. 6, pp. 575-580.   DOI
9 Turnbull, S. R. and D. Dawson(1997), The Securing of Rigid Semi-Trailers on Roll-on/Roll-off Ships. Journal of Mechanical Sciences, Vol. 39, No. 1, pp. 1-14.   DOI
10 MOF(2018) Standards for cargo loading and securing, etc. Retrieved from http://www.mof.go.kr/, on September 23.
11 Lee, H. J. and W. T. Lee(2019), AHRS Development with MEMS and using 6-Axes Motion, The Society for Aerospace System Engineering 2019 Spring Conference, pp. 1-4.