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2023 Journal Impact Factor - 0.7
2023 CiteScore - 1.4
ISSN 2083-6473
ISSN 2083-6481 (electronic version)
Editor-in-Chief
Associate Editor
Prof. Tomasz Neumann
Published by
TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
e-mail transnav@umg.edu.pl
The Second Trim Correction in Draught Survey Procedure – Accuracy Analysis
1 Gdynia Maritime University, Gdynia, Poland
ABSTRACT: The basic method for determining the mass of dry bulk cargo, loaded on the ship or unloaded from the ship, is the Draught Survey procedure. This procedure is quite simple, however is highly susceptible to mistakes and accidental errors. Moreover, it is also affected by some systematic errors. The difference between the mas of cargo at the loading and discharging port (cargo shortage) bigger than 0.5% then such cargo shortage generally becomes the subject of a Cargo Claim. In this study the systematic error that concerns the formula of second trim correction in Draught Survey procedure is discussed. The results of calculations performed with the commonly used the second trim correction formula are compared with the results obtained during calculations with the use of Bonjean Scale. The calculations carried out with the use of Bonjean Scale, have been validated based on the ship’s documentation. For the purpose of this study the small bulk carrier was selected. The results of performed calculations shows the significance of the systematic error of the second trim correction for a ship with higher trim values.
KEYWORDS: Accuracy Analysis, Ship Stability, Trim, Draught Survey Procedure, Electronic Quality Shipping Information System (EQUASIS), Draught at Midship, Bonjean Scale, Hydrostatic Table
REFERENCES
Barras, C. B., Derrett, D. R., Ship Stability for Masters and Mates, 7th Edition, Butterworth –Heinemann (2012) - doi:10.1016/B978-0-08-097093-6.00052-9
Canımoğlu, R., Yıldırım, U., Analysis of Draught Survey Errors by Extended Fuzzy Analytic Hierarchy Process, Journal of ETA Maritime Science 9(1), Turkey (2021) - doi:10.4274/jems.2021.64872
Committee on Energy. Working Party on Coal, Code of Uniform Standards and Procedures for the performance of Draught Surveys of Coal Cargoes, UNECE, Genewa (1992)
Dibble, J.W., Mitchell, P., Draught Surveys: A guide to good practice, The North of England P&I Association, Loss Prevention Guides (1994)
Elnoury, A., Gaber, E. M., Accuracy of Draught Survey Process and Affecting Factors, Arab Academy of Science, Technology and Maritime Transport, Alexandria (2018)
International Institute of Marine Surveying (IIMS), Code of Practice for Draught Surveys, Witherby & Company Ltd, London (1998)
International Maritime Organization (IMO), International Convention for the Safety of Life at Sea (SOLAS), IMO (2013)
Isbester, J., Bulk Carrier Practice, London: ISBN: 1870077164. The Nautical Institute (1993)
Ivče, R., Jurdana, I., Mohović, R., Determining weight of Cargo on board ship by means of optical fibre technology draft reading, Promet-Traffic & Transportation 23(23): 421-429 (2011) - doi:10.7307/ptt.v23i6.177
Japan P&I Club, Preventing Cargo Shortage, P&I Loss Prevention Bulletin vol. 37, Japan P&I Club, Tokyo (2016)
Li, H., Bao, Y., Xu, Z., Study on the algorithm of draft survey error based on fuzzy comprehensive evaluation method and weighting emphasis method, ACTA Metrologica Sinica 35(1), 67-72 (2014)
Puchalski, J., Soliwoda, J., 2008 Eksploatacja masowców, Trademar, Gdynia (2008)
Soliwoda, J., Analiza dokładności oceny współczynnika korekcyjnego poprawki na deformację w metodzie Draught Survey, Zeszyty Naukowe Akademii Morskiej w Gdyni, Gdynia (2016) (in Polish)
Wawrzyński, W., Wpływ rozkładu deformacji na długości kadłuba na wyznaczanie wyporności na podstawie zanurzeń pomierzonych na znakach zanurzenia, Zeszyty Naukowe Akademii Morskiej w Gdyni, Gdynia (2011) (in Polish)
West of England P&I Club, Inaccuracies in Draught Surveys, P&I Loss Prevention Bulletin (2018) https://www.westpandi.com/news-and-resources/loss-prevention-bulletins/inaccuracies-in- draught-surveys/
Xu, G., Zhao, K., Zuo, Z., Liu, G., Jian, B., Lın, Y., Assessing Risk of Draught Survey by AHP Method, China: AIP Conference Proceedings (2018) - doi:10.1063/1.5033696
Citation note:
Wawrzyński W.: The Second Trim Correction in Draught Survey Procedure – Accuracy Analysis. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 18, No. 3, doi:10.12716/1001.18.03.25, pp. 695-703, 2024
Authors in other databases:
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