Research on the bow-flared slamming load identification method of a large container ship

Wang, Qiang; Yu, Pengyao; Chang, Xin; Fan, Gaojie; He, Guangbin

doi:10.1016/j.oceaneng.2022.113142

Cited by 7 publications

(2 citation statements)

References 42 publications

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“…The finite element analysis method used in this paper was a nonlinear dynamic analysis; however, there is another commonly used finite element analysis method, namely, linear dynamic analysis (Wang et al [63]). Linear analysis has a broader range of applications and can solve various dynamic-response problems.…”

Section: Comparison Of Linear and Nonlinear Analysis Methodsmentioning

confidence: 99%

Numerical Study on the Green-Water Loads and Structural Responses of Ship Bow Structures Caused by Freak Waves

Zhang

Qin

et al. 2023

Applied Sciences

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In recent decades, freak waves, characterized by their unusual high amplitude, sharp crest, and concentrated energy, have attracted researchers’ attention due to their potential threat to marine structures. Green-water loads caused by freak waves can be significant and may lead to local damage to the ship structures. Therefore, this paper focuses on the study of green-water loads and examines the structural responses of ship bow structures under the influence of the green-water loads caused by freak waves. Firstly, a three-dimensional numerical wave tank is established in which the superposition model is used to generate freak waves. Validations on the freak-wave generation, ship motion response and the wave loading are carried out to verify the present solvers. The simulation on the interaction between the freak wave and the ship are conducted to obtain the interaction process and green-water loads. Secondly, a finite element (FEM) model of the ship bow is built, on which the green-water loads are applied to calculate the structural responses. Finally, the displacement and stress of the deck and breakwater structures are analyzed. It is found that green water events caused by freak waves can generate enormous impact forces on the bow deck and breakwater, resulting in severe structural responses and even possible damage to the structures. The local strength of structures under freak waves needs to be considered in practical engineering applications.

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Section: Comparison Of Linear and Nonlinear Analysis Methodsmentioning

confidence: 99%

Numerical Study on the Green-Water Loads and Structural Responses of Ship Bow Structures Caused by Freak Waves

Zhang

Qin

et al. 2023

Applied Sciences

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“…The results indicated that spectral analysis is conducive to enhancing the assessment of the fatigue life of mooring lines. Wang et al [35] used the seakeeping method, computational fluid dynamics method, and the finite element method to simulate the slamming pressure and local structural response of a large container ship and analyzed the dynamic characteristics of the bow-shaped structure under slamming load. Zhang et al [36] employed the time-domain method to study the interaction between sea ice and the cable tunnel structure of offshore substations, analyzing the failure patterns of sea ice and the variation rules of ice force amplitudes under ice loads.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Impact Resistance Characteristics of a Power Propulsion Shaft System Containing a High-Elasticity Coupling

Guo,

Zhou,

et al. 2024

Applied Sciences

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In research concerning the impact resistance characteristics of ship power transmission shaft systems incorporating a high-elasticity coupling, a significant challenge lies in ascertaining the displacement compensation metrics for the high-elasticity coupling. This study constructs a finite element model of the ship power transmission shaft system with an entity equivalent model of the high-elasticity coupling. Utilizing the Dynamic Design Analysis Method (DDAM) and the time-history method, the dynamic responses of the high-elasticity coupling, the propulsion shaft system, and its critical cross-sections under explosive impact loads are analyzed. The findings indicate that the maximum impact displacement of the propulsion shafting system, as calculated by DDAM, is 22.47 mm in the vertical direction at the driven end of the high-elasticity coupling. In contrast, the maximum impact displacement determined by the time-history method is 15.23 mm in the same direction. The study corroborates the precision of the high-elasticity coupling equivalent model establishment methodology and confirms that the entity equivalent model of the power transmission shaft system with a high-elasticity coupling is capable of fulfilling the criteria for a swift evaluation of impact resistance characteristics. This provides theoretical backing for the forecasting of impact resistance performance in ship propulsion shaft systems.

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A simulation-based and data-augmented shear force inversion method for offshore platform connector

Zhang,

Oterkus,

Oterkus

et al. 2024

Marine Structures

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Research on the bow-flared slamming load identification method of a large container ship

Cited by 7 publications

References 42 publications

Numerical Study on the Green-Water Loads and Structural Responses of Ship Bow Structures Caused by Freak Waves

Numerical Study on the Green-Water Loads and Structural Responses of Ship Bow Structures Caused by Freak Waves

Analysis of the Impact Resistance Characteristics of a Power Propulsion Shaft System Containing a High-Elasticity Coupling

A simulation-based and data-augmented shear force inversion method for offshore platform connector

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