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Damage stability of ships as a safety criterion for optimisation tools

Saydan, Deniz . (2006) Damage stability of ships as a safety criterion for optimisation tools University of Southampton, School of Engineering Sciences, Doctoral Thesis , 317pp.

Record type: Thesis (Doctoral)


A literature overview of past optimisation studies revealed that whilst satisfaction of intact stability requirements has been built into existing alternative hull form optimisation packages, seeking improved hydrodynamic hull forms in terms of seakeeping, calm water resistance and added resistance, damage stability is not an automated feature. Within the context of the hydrodynamic hull form optimisation techniques their application to novel hull forms would only permit use of deterministic damage stability analysis and as this is not straight-forward damage is applied after the hull is optimised. The damage must be relevant to ship type and applied in appropriate locations with sensible extents of damage. To fulfil this need both the Marine Accident Investigation Branch (MAIB) damage data base and a damage data base generated by Lutzen (2002) are interrogated and findings are reported.

The hydrodynamic analysis of the optimised hull and basis hull for the intact and damage cases is thereafter carried out using a three-dimensional singularity distribution method. The relative vertical motion responses of both intact and damaged hull forms are determined with greater structural cross-coupling than is usually applied in the solution of the equations of ship motions. This has necessitated the development of a novel approach to implement the calculation of the pure and product moment of inertias for the intact and damaged hull forms to facilitate meaningful comparison of intact and damaged ship motions. The processes are equally applicable to any kind of ship.

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Published date: July 2006
Organisations: University of Southampton


Local EPrints ID: 142587
PURE UUID: 5b1781f7-e03d-40c2-bdf3-43d9fcce76ec
ORCID for Pandeli Temarel: ORCID iD
ORCID for Philip Wilson: ORCID iD

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Date deposited: 19 Aug 2010 11:57
Last modified: 18 Jul 2017 23:11

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Author: Deniz . Saydan
Thesis advisor: Pandeli Temarel ORCID iD
Thesis advisor: Philip Wilson ORCID iD
Thesis advisor: Ö. Belik

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