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Uncertainty analysis procedure for the ship inclining experiment
Citation
Woodward, MD and van Rijsbergen, M and Hutchinson, KW and Scott, A, Uncertainty analysis procedure for the ship inclining experiment, Ocean Engineering, 114 pp. 79-86. ISSN 0029-8018 (2016) [Refereed Article]
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Copyright Statement
Copyright 2016 The Authors. Published by Elsevier Ltd. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/
DOI: doi:10.1016/j.oceaneng.2016.01.017
Abstract
The inclining experiment is typically performed for all new-build ships and after any major refit. The purpose of the inclining experiment is to establish the vertical distance of the centre-of-mass of the ship above its keel in the lightship condition. This value is then taken as the point of reference when loading the ship, for establishing the ‘in-service’ stability, throughout the life of the ship. Experimental uncertainty analysis is commonly utilised in hydrodynamic testing to establish the uncertainty in a result as a function of the input variables. This can in turn be utilised to establish an interval about the result that may be expected to encompass a large fraction of the distribution of values that could reasonably be attributed to the measurement. This paper provides a methodology for calculating a confidence interval for the location of the centre-of-mass of a ship from an inclining experiment; and ultimately, in any load condition.
The uncertainty compared to an assumed metacentric height of 0.15 m is provided for four classes of ship: buoy tender 0.15 ± 0.15 m (± 100%); super yacht 0.150 ± 0.033 m (± 22.0%); supply ship 0.150 ± 0.047 m (± 31.3%), container ship 0.150 ± 0.029 m (± 19.3%), ropax 0.150 ± 0.077 m (± 100%).
Item Details
Item Type: | Refereed Article |
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Keywords: | inclining experiment, uncertainty analysis, ship stability, KG, GM |
Research Division: | Engineering |
Research Group: | Maritime engineering |
Research Field: | Naval architecture |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in engineering |
UTAS Author: | Woodward, MD (Associate Professor Michael Woodward) |
ID Code: | 106852 |
Year Published: | 2016 |
Web of Science® Times Cited: | 13 |
Deposited By: | NC Maritime Engineering and Hydrodynamics |
Deposited On: | 2016-02-23 |
Last Modified: | 2017-11-03 |
Downloads: | 196 View Download Statistics |
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