... such as Stokes wave theory and Morison's formula. In this study, a numerical simulation method is used to construct a sample database by taking parameters such as wave height, period, and flow velocity as inputs and calculating wave loads using the finite element software ANSYS APDL. A Bayesian regularized...

... decreases as spudcan extraction progresses. Comparing simulation data to a theoretical model shows a relative error of about 3% for maximum pulling force. These findings provide valuable guidance for field spudcan extraction operations, addressing the limitations of empirical formulas commonly used in field...

..., which is a multiple-contact problem, with simultaneous contacts at both the carousel inner wall and outer wall, hence it is more complicated than conventional cylindrical contact. In this paper, we first derive a set of analytical approximation formulas from conforming contact theory...

... mechanism model is established to simulate the turning and zigzag tests. The hydrodynamic coefficients of the bare hull are obtained by numerically simulating the oblique towing tests (OTT) and circular motion tests (CMT) with different drift angles and yaw rates. Combined with the empirical formula...

... curvature geology optimization entrance curvature ocean engineering resistance optimized ship resistance performance journal semi-small waterplane area twin-hull afterbody waterline formula characteristic swath Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering...

... deterioration of the main engine and propulsion system due to aging. resistance performance accuracy onboard monitoring data deterioration equation hull fouling machine learning fouling formula artificial intelligence propulsive performance ship propulsive performance constraint deviation...

... by a square leakage hole, and finally circular. Based on the numerical simulation data, a simplified gas release rate calculation formula is established, and its maximum error is 5.32%. INTRODUCTION As a non-renewable energy, the storage of petroleum resources is gradually decreasing, and its combustion...

... formula coefficient engine ieee transaction propeller emss battery consumption ship resistance efficiency dhp engine startup shanghai jiao tong university Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright...

... analysis of k based on CFD based form factors has emerged as a viable approach. This paper introduces and examines two formulas: one for k at different draft and another for change of form factor between drafts, denoted as Δk . The regression process of the empirical formula, as well as the accuracy...

... guidance to meet the modern operational needs of ULCS in ports. This paper focuses on the tugboat configuration during the berthing and unberthing processes. Using empirical formulas and numerical simulations with the hydrodynamic analysis software AQWA, three types of typical ULCS were studied under...

... ABSTRACT The ship‘s cyclicity index K and the ship‘s following index T are the characteristic parameters used to characterize the ship‘s maneuverability. This paper aims to solve the problem of numerical error between the classical KT formula and the real ship KT index in the complex...

... platform clearance gravity floating production systems effect dcop mathematics of computing stability ballast platform stability formula keel tank subsea system deep-draft cylindrical offshore platform displacement calculation buoyancy insufficient stability shanghai jiao tong...

... 2 solubility geology drilling fluid management & disposal foam equation of state enhanced recovery salinity geologist drilling fluids and materials formula calculation compressibility zh-h chemical geology fugacity coefficient density nacl china study reservoir deviation...

.... At the time t0 t1 , the relationship of X Y is described by the conditional probability; the relationship of X (t0 ) X (t1) and Y (t0) Y (t1) are described by transition probability. The transition probability of two time slices is shown in the formula: N ( )P( Xt | Xt1 ) = p( X i t | Pa X i t ) i...

... in the wake. Different spanwise lengths have little effects on middle and high frequency noise. But for a short-span cylinder, the predicted noise is lower in low frequency. Kato's correction formula for different spanwise lengths is adopted in this paper and plays a good role in hydrodynamic noise prediction...

.... According to the experimental results, an improvement has been made to the classic formula for calculating the adsorption force by introducing the time scale. The modified formula is suitable for calculating the adsorption force under different sitting times. The results can provide some guidance...

...-section, can be approximated using the classical formula for the buckling of elastic tubes under uniform external pressure (Karampour, 2018; Alrsai et al., 2018). This localized collapse harbors the potential for propagation along the entire pipeline, a phenomenon termed propagation buckling, sustained...

...) = ij (t ) i j (t ) i j (t) i j (t) j allowed k (1) In the formula: p ij(t) represents the probability of the k-th ant transferring from grid i to grid j at time t. ij(t) represents the concentration of pheromones along the paths of grid i and grid j at time t, ij(t) represents the heuristic...

...-rudder AUV's coordinate system Based on Prestero's work and combined with the characteristics of AUV for X rudder, kinematics and dynamics equations for AUV for X rudder are designed in this paper, as shown in equation (1) and equation (2) respectively: 1824 In these formulas mV is the mass of the X...

..., the conservation of mass and energy have already formed a closed equation, so usually only the conservation of mass and momentum need to be considered. Therefore, the N-S equation for 2299 incompressible viscous fluids can be written in the following form: = 0 + = 1 + 2 (1.1) (1.2) In the formula, ( = 1,2,3...