Notice of RetractionStudy on Safety of Ship Maneuverability in Complex Environmental Conditions

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

The Ship manoeuvring is a closed-loop control system, consisting the ships itself, driving personnel and the navigation environment. with the thought of separate model establishment, the paper makes mathematical models for ships with four degree-of-freedom movement to simulate the rolling angle ships under effect of different environments, such as wind, wave, current and so on, then we find that In the situation of the rolling angle surpassing 20 degrees in ships rotation process, it has endangered security of the ships and the cargo seriously. In view of the ship manoeuvring performance, the paper proposes the related countermeasure for navigation law and controlling reasonably encounter situation to enhance the efficiency and the security for the ships movement.