On the estimations of ship motions during maneuvering tasks in irregular seas

Maria Acanfora, Jerzy Matusiak

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

4 Citations (Scopus)


It is well known that ship dynamics in irregular waves can lead to large amplitude motions and thus to large accelerations. These can result in accidents on cargo and on passenger ships with consequent damages. This paper proposes a more realistic modeling approach of the critical ship motions, including the pertinent nonlinearities. One of the main goals is to investigate the ship accelerations during maneuvering tasks in irregular in waves. Ship maneuvering performance is typically predicted based on calm water assumptions. However, since the ship always sails in waves, the maneuvering performance in a seaway condition may be significantly different from that in a calm water condition. While the ship is steering in waves, large unexpected accelerations can arise due to the combinations of different motions.The numerical model called LaiDyn is used to investigate ship large accelerations, in heavy sea states. LaiDyn is a six-degree of freedom dynamic model, in time domain. The accelerations, in some relevant points, are evaluated taking into account all the motion components of the ship during maneuvering tasks in waves.

Original languageEnglish
Title of host publicationProceedings of 3rd International Conference on Maritime Technology and Engineering, MARTECH 2016
EditorsCarlos Guedes Soares, T.A. Santos
PublisherCRC Press
Number of pages8
ISBN (Print)9781138030008
Publication statusPublished - 2016
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Maritime Technology and Engineering - Lisbon, Portugal
Duration: 4 Jun 20166 Jun 2016
Conference number: 3


ConferenceInternational Conference on Maritime Technology and Engineering
Abbreviated titleMARTECH


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