This paper presents a novel analysis of wave-induced hull girder loads acting on a ship in case of parametric roll. This phenomenon, usually investigated about stability issues, could have a high incidence on ship structures due to the development of large torsional loads. In this paper, a systematic analysis of wave-induced torsional moment and vertical bending moment is carried out for a containership prone to parametric roll resonance. The numerical estimation of torsional and vertical loads, in absence and in presence of parametric resonance is performed by means of a 6-DoF model, capable of simulating both ship dynamics and the corresponding wave-induced loads. The scope of this paper focuses on hull girder load estimation and discussion, with the aim to identify relevant scenarios involving parametric roll resonance. The obtained results show a relevant increase in torsional moment in presence of parametric roll resonance, together with large values of vertical bending moment.
Assessment of bending and torsional moments on hull girder due to parametric roll: a case study for a containership
Ships and Offshore Structures ; 15 , 7 ; 780-791
08.08.2020
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Measuring hull girder deformations on a 9300 TEU containership
Online Contents | 2014
|Springer Verlag | 2013
|NONLINEAR EXTREME VERTICAL HULL GIRDER BENDING MOMENTS IN A NORTH SEA FPSO
British Library Conference Proceedings | 2000
|