Review of the uncertainties associated to hull girder hydroelastic response and wave load predictions

Hirdaris, Spyros; Parunov, Joško; Qui, Wei; Iijima, Kazuhiro; Wang, Xueliang; Wang, Shan; Brizzolara, Stefano; Soares, C. Guedes

doi:10.1016/j.marstruc.2023.103383

Cited by 8 publications

(1 citation statement)

References 114 publications

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“…Guedes Soares and Trovão [78,79] showed that wave climate uncertainty may have a significant effect on the long-term predictions of wave-induced ship structure responses. Recently, Hirdaris et al [80] investigated the uncertainties in hull girder response and wave load predictions that are influenced by flexible fluid-structure interactions.…”

Section: Introductionmentioning

confidence: 99%

A New Model Uncertainty Measure of Wave-Induced Motions and Loads on a Container Ship with Forward Speed

Abdelwahab

Wang

Parunov

et al. 2023

JMSE

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A new uncertainty quantifier is presented for linear transfer functions of wave-induced ship motions and loads obtained by various seakeeping codes. The numerical simulations are conducted for the high-speed Flokstra container ship in regular waves at various heading angles, and the results are compared with existing experimental data. The study employs five numerical codes that are based on three different seakeeping theories, namely strip theory, 3D frequency-domain method, and 3D time-domain method. Multiple measures are applied to quantify the uncertainty in the calculated transfer functions, such as frequency-independent model error, coefficient of determination, and the total difference. In addition, a new measure of uncertainty, termed modified total difference, is proposed for determining the uncertainty of individual seakeeping codes based on experimental data rather than the mean of results obtained by numerical codes. Results show that the uncertainty measures can identify differences between the codes. The predicted wave-induced loads have higher uncertainties compared to motions. The uncertainty assessment shows that none of the applied codes can produce accurate estimates for all wave-induced motions and loads at all heading angles at the same time.

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Section: Introductionmentioning

confidence: 99%

A New Model Uncertainty Measure of Wave-Induced Motions and Loads on a Container Ship with Forward Speed

Abdelwahab

Wang

Parunov

et al. 2023

JMSE

Self Cite

View full text Add to dashboard Cite

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Analysis of the Behavior of a Chemical Tanker in Extreme Waves

Wang,

Klein,

Ehlers

et al. 2024

J. Marine. Sci. Appl.

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The behavior of a chemical tanker (CT) in extreme waves was discussed in detail, that is, in terms of rigid body heave and pitch motions, vertical bending moments (VBMs) amidships, green water, and slamming impacts through the analysis of the experimental data from model tests. Regular wave tests conducted for two wave steepness showed that the increase in wave steepness caused the increase in the asymmetry between hogging and sagging moments and the contribution of green water on deck to the decrease in vertical wave bending moments. Random uncertainty analysis of statistical values in irregular wave tests with various seeds revealed slight experimental uncertainties on motions and VBMs and slightly higher errors in slamming pressure peaks. With the increase in forward speed, experimental uncertainty on slamming pressures at the bow increased. Breather solutions of the nonlinear Schrödinger equation applied to generate tailored extreme waves of certain critical wavelengths showed a good performance in terms of ship response, and it was further verified for the CT.

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Optimizing welding sequence of TIG cross-joint of Invar steel using residual stresses and deformations

Su,

Yang,

et al. 2023

Journal of Manufacturing Processes

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Review of the uncertainties associated to hull girder hydroelastic response and wave load predictions

Cited by 8 publications

References 114 publications

A New Model Uncertainty Measure of Wave-Induced Motions and Loads on a Container Ship with Forward Speed

A New Model Uncertainty Measure of Wave-Induced Motions and Loads on a Container Ship with Forward Speed

Analysis of the Behavior of a Chemical Tanker in Extreme Waves

Optimizing welding sequence of TIG cross-joint of Invar steel using residual stresses and deformations

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