Statistical models for the speed prediction of a container ship
Artikel i vetenskaplig tidskrift, 2016

Accurate prediction of ship speed for given engine power and encountering sea environments is one of the key factors for ship route planning to ensure expected time of arrivals (ETA). Traditional methods need first to compute a ship's total resistance based on theoretical calculations, which are often associated with large uncertainties. In this paper, two statistical approaches are investigated to establish models for a ship's speed prediction. The measurement data of a containership during one year's sailing are used for the demonstration and validation of the presented statistical methods. The pros and cons of the methods are compared in terms of capability, robustness, and accuracy of the prediction. By means of the measured engine Revolutions Per Minute (RPM) and extracted sea environments along the ship's sailing routes, the statistical methods are shown to be able to give reliable speed predictions. Further investigation is needed to test the capability of the statistical methods for the speed prediction using engine power instead of RPM.

Ship speed prediction

Performance measurement

Mixed effects model

Engine RPM

Autoregressive model

Regression

Författare

Wengang Mao

Chalmers, Sjöfart och marin teknik, Marin teknik

Igor Rychlik

Göteborgs universitet

Chalmers, Matematiska vetenskaper, matematisk statistik

Jonas Wallin

Göteborgs universitet

Chalmers, Matematiska vetenskaper, matematisk statistik

Gaute Storhaug

DNV GL AS

Ocean Engineering

0029-8018 (ISSN)

Vol. 126 152-162

Styrkeområden

Energi

Ämneskategorier

Sannolikhetsteori och statistik

DOI

10.1016/j.oceaneng.2016.08.033