... of global vibration, local vibration of cabins, and underwater acoustic radiation. Giving consideration to both the computational cost and accuracy, the proposed shell-beam model is appropriate for the calculation of low-medium frequency acoustic radiation of the main structures of underwater vehicles...

... coefficient spudcan jack-up vessel result show sub-sea system journal asia government japan government force calculation vicinity operation static 0 pressure force tank experiment modeling & simulation distance equation proceedings Journal of Ship Research, Vol. 67, No. 1, March 2023...

... of measured data to the process of ship installation so as to accurately calculate the displacement value in the actual installation, this article proposes a method to calculate the displacement value of shafting intermediate bearing based on different confidence-level training samples. Taking a ro-ro ship...

...Jinhui He; Haibin Zhang; Renchuan Zhu _ Offshore structures floating at sea should use their dynamic positioning (DP) system to maintain position and heading against environmental loads, including wave loads, current loads, and wind loads. It is difficult to calculate environmental loads accurately...

... intelligence coefficient calculation camber equation hydrofoil operation two-dimensional hydrofoil surface froude number effect parabolic-arc camber passenger transportation geometry effect integral equation journal Froude Number Effects on Two-Dimensional Hydrofoils' By G. R. Hough 2 and J...

... insight to the vessel’s stability characteristics, propulsion, and dynamic loading environment during the attack. In addition, a discussion of possible loss scenarios, informed by both calculation results and inspections of vessel’s hull, is presented. Although the story of what happened to H. L. Hunley...

... 2020 28 3 2022 strategic planning and management sustainable development social responsibility electrical industrial apparatus project management subsea system optimization problem freight & logistics services sustainability variant calculation ship assessment proceedings...

...Deng Yibin; Yang Xiaogang; Huang Yanling; Pan Tian; Zhu Hanhua The mutual influence between the bearings of a ship’s multisupport shafting makes its installation and alignment very difficult. This article addresses the problem of the calculation of the precise displacement value of each...

... 12 10 2020 23 12 2021 Copyright 2021, The Society of Naval Architects and Marine Engineers renewable energy calculation ship research reservoir simulation circulation prediction ocean energy effective wake turbine 1 axial distance arrangement month 2020 coefficient...

...María José Legaz; Sergio Amat; Sonia Busquier Whirling vibration is an important part of the calculations of the design of a marine shaft. In fact, all classification societies require a propulsion shafting whirling vibration calculation giving the range of critical speeds, i.e., free whirling...

... computational burden, the proposed scheme offers "objective" statistical information on a ship's high-run tendency that can be used for benchmarking simpler (approximative) probability calculation schemes. 1. Introduction Current efforts to assess a ship's tendency for abnormal behavior in extreme seas...

... calculation propeller force baltazar Upstream Oil & Gas december 2019 coefficient calculation pressure distribution geometry reservoir simulation prediction open water characteristic propeller correction thrust Kutta condition equation proceedings procedure ducted propeller Journal...

... that are ready for implementation in computational fluid dynamics (CFD) solvers using Reynolds-averaged Navier-Stokes (RANS) closures. Results from baseline linear RANS closure calculations of a finite square-mounted cylinder with a Reynolds number of 11; 000, based on diameter and freestream velocity, are shown...

... and forces (or moments) are calculated when ships are maneuvering in shallow and narrow channels, when ships are entering locks, or when two ships are encountering or passing each other. These calculations are compared with the benchmark test data published in MASHCON, and the published computational fluid...

...E. Güngör; I. B. Özdemir The acoustical performance of a counter-rotating marine propeller system is computed using the Ffowcs, Williams and Hawkings (FWH) algorithm. The solution procedures, where finite volume computational fluid dynamics calculations were exploited, was validated...

... under extreme cyclic bending. To obtain the nonlinear average stress-average strain relationship (σ-ε curve) of the basic structural element (consisting of a stiffener with its attaching plating) under cyclic in-plane compression and tension, systematic calculations are carried out by using...

... was calculated using an engine simulation software tuned for each specific engine and fed with recorded engine data. To distinguish the effect of fouling, wave-added resistance, air resistance, and calm water resistance were deducted from total ship resistance. Wave-added and air resistances were calculated...

... was constructed for the examination of the thin plate. The experiments on smooth flat plate included examination of a series of trip wires for flow stimulation, among which the optimum was 1.3 mm. In rough condition, the plate was covered with sandpapers of 40 and 80 grit. Both calculated roughness functions...

... celerity is used for formally recognizing the occurrence of high-run and a simple method is proposed for its calculation. Problem's rarity (i.e., whether few only or a large number of broaching-to incidents are recorded during long-time simulations) is controlled by using the rudder control gains...

... emissions significantly. 1 3 2016 1 3 2016 2016. The Society of Naval Architects and Marine Engineers optimization problem 4250-teu container ship total resistance Artificial Intelligence air emission different trim Upstream Oil & Gas engine power calculation variation...