Options
Sensitivity analysis for ship squat predictions using Sobol’ indices
Citation Link: https://doi.org/10.15480/882.3309
Publikationstyp
Conference Paper
Date Issued
2019-09
Sprache
English
Author(s)
Herausgeber*innen
TORE-DOI
TORE-URI
Article Number
5
Citation
11th International Workshop on Ship and Marine Hydrodynamics (IWSH2019), Paper 5
Contribution to Conference
Ship’s sinkage, trim and resistance will increase when entering shallow waters. It is of great significance to investigate the squat of ship in shallow and confined navigation areas. However, there are many factors affecting the ship’s squat, such as speed of the ship, block coefficient, water depth and draught of the ship et al. In this paper, the contribution of these factors to the squat is measured in empirical formula models using Sobol’s indices which is a useful method to quantify the respective effects of input random variables onto the variance of the response of a physical or mathematical model. Results are obtained from six empirical models, Barrass, Eryuzlu, Huuska, Yoshimura, Romisch and Ankudinov, demonstrating that the speed of the ship has significant influence while the shape of the bow/stern, single/twin propeller have little effect on the squat of the hull.
Subjects
Empirical formula
Sensitivity analysis
Sobol indices
Squat
DDC Class
600: Technik
620: Ingenieurwissenschaften
Loading...
Name
paper_0005_file_0447_Sensitivity_Analysis_for_Ship_Squat_Predictions_using_Sobol__Ind.pdf
Size
849.2 KB
Format
Adobe PDF