... ABSTRACT This paper discusses a method for assessing the stability of breakwater caissons by relating it to the settlement of wave-dissipating blocks. This method utilizes the framework of reliability analysis for determining the priority of countermeasures for breakwater caissons...

... ABSTRACT A new type of the monolithic lock chamber with lateral slabs has been gradually used in lock engineering, because it has the advantages of reducing the earth pressure on the chamber wall and increasing the anti-floating stability of the chamber. Anti-floating stability during lock...

... operations. The dynamic stability of cantilevered pipe aspirating fluid is investigated under lumped mass. The harmonic differential quadrature (HDQ) method is applied to solve the governing vibration equation. The numerical results obtained by the HDQ method agree well with those from the Galerkin method...

... stability sweden government maxima return period likelihood annual maxima artificial intelligence statistics profile likelihood polar engineering conference estimation return level block maxima largest maxima international ocean point estimate Proceedings of the Thirty-third (2023...

... ABSTRACT Extreme roll motion of a ship under dead ship condition is a significant research object of the Second Generation Intact Stability Criteria developed by the IMO (International Maritime Organization). In this study, an in-house CFD (computational fluid dynamics) solver is applied...

.... Therefore, the stability of offshore structures under wave conditions are particularly important. The target object for seawater cooling pipeline is the stability of pipes during wave attacks. Due to the light weight of HDPE pipe, the ballast is usually used to add to the pipe for the purpose of increasing...

... mooring system dynamic analysis return period upstream oil & gas drillship water depth hull shear force amplitude environmental load software displacement environmental condition wave amplitude drillship hull stability gyration Proceedings of the Thirty-third (2023) International...

... stability refers to the ability that a ship rotates transversely by an external force and can return to the original equilibrium condition when the external force disappears. The intact stability is the ship stability when the ship hull is intact without damage. The International Maritime Organization had...

... interaction models on the estimation of passive soil resistance as well as the initial penetration. Both sand and clay soil types from DNV-RP-F109, DNV-RP-F114 are considered in the study. A full on-bottom stability case study using different analytical pipe soil interaction models is presented to demonstrate...

... ABSTRACT The purpose of the study is to discuss the influence of the air entrainment on the marine pipeline stability. It is important to prevent excessive air from entering the pipeline, which can affect the weight of the pipeline and lead to problems such as pipe instability, changes in pipe...

... component and uses high-strength ceramics as the wall material. The tests found that HSA has a wide application temperature range and high resistance, and its application in cement meets the industry standard with no significant effect on cement density, settlement stability, consistency, or rheological...

... oil and gas, high reservoir pressure, high risk of gas channeling. Due to the existence of these problems, the high-performance requirements of cement slurry are necessary: not only have ultra-high density to pressure stabilize the stratum, but also have excellent rheological properties to ensure...

... ABSTRACT In this paper, a mathematical model is newly developed to investigate the dynamic stability of aspirating pipe induced by solid-liquid two phase flow. Slip model is introduced to describe the slip characteristics of solid-liquid two phase flow. Harmonic differential quadrature method...

... meters deep. Moreover, the paper develops and implements an optimization framework for designing new FOWT configurations, regarding stability, and investigates the global response of the new design schemes. INTRODUCTION In recent decades, clean energy, especially wind energy, has been considered...

... ABSTRACT Dual wellhead suction bucket foundation plays an important role in joint mining and production improvement. In order to ensure safe operation, the bearing capacity mechanism and wellhead stability need to be studied. In this paper, the mechanical model of riser and dual wellhead...

... can rotate fast to realize rapid direction change. An attitude regulation mechanism is used to ensure attitude stability and a buoyancy adjustment mechanism is designed to enable the vehicle to dive and ascend with low energy consumption. Finally, the excellent turning performance of the SUV is proved...

... ABSTRACT In view of the cementing problem that the sedimental stability of cement slurry is difficult to guarantee under high temperature and ultra-high temperature conditions, a hydrophobically associating high-temperature suspension agent BCJ-Z was invented by introducing hydrophobic groups...

... the performance of plate anchors in trenched seabed. The first is the anchor stability in trenched seabed, i.e. how to determine the critical trench depth for the anchor to maintain stability within the seabed? The second is the further keying property of the plate anchor in trenched seabed, i.e. does the anchor...

... to validate the accuracy and stability of the utilized SPH model. Furthermore, the motion characteristics of the lifeboat with different water entry angles are investigated and discussed in detail. In particular, a comparative study is performed to assess the feasibility and accuracy of the SPH and FV methods...

..., rheological property, sedimentation stability and other basic properties were also evaluated. INTRODUCTION Hydrate reservoirs with high pressure and low temperature are distributed in offshore deep-water areas (Ravi, 1999; Armstrong, 2002). In the process of deep-water cementing, the temperature around...