Study on Manoeuvring Criteria for Safety Assessment in Shallow Water
Journal Title: TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation - Year 2017, Vol 11, Issue 3
Abstract
The necessity of verifying manoeuvring mathematical models in shallow water for studying the safety of ships using a ship-handling simulator is pointed out in this report. Several instances of verification of mathematical models in shallow water are introduced here based on measurements of motion conditions of full-scale ships and shallow water tank tests of models. Results of safety assessment tests of five manoeuvring phases are given using the verified manoeuvring mathematical models to discuss manoeuvring criteria in shallow water. Objective manoeuvring criteria for safety assessment in shallow water are proposed based on subjective judgement related to control margin assessed by more than 3,200 masters and pilots for over 325 simulation tests and by analysis of the study results of 15 full-scale ships.
Authors and Affiliations
Shinya Nakamura
Control System of Training Ship Keeping the Desired Path Consisting of Straight-lines and Circular Arcs
Presented in this paper is a new, expanded approach to setting the planned route within restricted sea areas where there are permanent obstacles or other vessels, and then tracking it by the ship. In this project the des...
Criteria of Accidental Damage by Ships Anchors of Subsea Gas Pipeline in the Gda?sk Bay Area
This paper discusses issues of the accidental anchor damage to offshore subsea pipeline as one of the most significant threat to underwater infrastructure. The density of vessel traffic over the pipeline between platform...
Inherent Properties of Ship Manoeuvring Linear Models in View of the Full-mission Model Adjustment
The paper presents new results on the inherent properties of ship linear dynamics. The focus is made on the second-order formulation for the uncoupled equations of sway and yaw, and on their unique, unknown performance w...
Developing a Maritime Safety Index using Fuzzy Logics
Safe shipping is essential for society and different measures are taken to improve maritime safety, for example through implementation of traffic separation schemes, radar surveillance and traffic management concepts. Bu...
Vessels Route Planning Problem with Uncertain Data
The purpose of this paper is to find a solution for route planning in a transport networks, where the costs of tracks, factor of safety and travel time are ambiguous. This approach is based on the Dempster-Shafer theory...