Numerical simulation of 6-degrees-of-freedom motions for a manoeuvring ship in regular waves

In this study, the authors propose a numerical simulation method to estimate 6-degrees-of-freedom (DOF) motions for a manoeuvring ship in regular waves. The proposed method is classified as a unified method; that is, it directly solves a family of equations of motion for the resultant 6-DOF ship motions, without separating the motions according to frequency. The authors’ mathematical model is based on an earlier model proposed by Hamamoto and Kim (1993); however, the authors primarily improve the external wave forces and the inertial and damping components of the hydrodynamic forces induced by ship motion form those of their model, such that the authors’ model can be applied to general manoeuvres (e.g., turning) and short waves. Using the proposed method, the authors conducted numerical simulations for tanker- and container-ship models under course-keeping and turning manoeuvres in regular waves. To validate the proposed method, the authors performed a free-running model test and compared the estimations with the test results. The comparisons clarify that the proposed method can approximately estimate the manoeuvre characteristics (e.g., mean ship speed, drift angle, and check helm) under course-keeping manoeuvres and turning trajectories, as well as the 6-DOF ship motions induced by waves, although room for improvement remains. The proposed method is applicable to both blunt and slender ships.

• Record URL:
  https://doi.org/10.1016/j.apor.2021.102732
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S0141118721002091
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01411187
• Supplemental Notes:
  • © 2021 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Suzuki, Ryosuke
  • Ueno, Michio
  • Tsukada, Yoshiaki
• Publication Date: 2021-8

Language

• English

Media Info

• Media Type: Web
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 102732
• Serial:
  • Applied Ocean Research
  • Volume: 113
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0141-1187
  • Serial URL: https://www.sciencedirect.com/journal/applied-ocean-research

Subject/Index Terms

• TRT Terms: Degrees of freedom; Equations of motion; Hydrodynamics; Maneuvering; Mathematical models; Seakeeping; Ship motion; Simulation; Time domain analysis; Water waves
• Subject Areas: Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 01777715
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 26 2021 3:47PM