... height negative air gap sea area upstream oil & gas sub-sea system environmental condition transfer function semi-submersible platform wei wei dnvgl-otg-13 ABSTRACT The air gap performance of the semi-submersible is closely related to the safety of the production and personnel, which...

... Quadratic Transfer Functions, QTFs), the study of third-order high-frequency wave loads is still a research field since the '90s with the publications of the FNV and Rainey's strip theory approaches and Malenica & Molin semi-analytical diffraction solution. This article, therefore, aims to analyse...

... bayesian model updating bayesian inference transfer function measurement data beuth verlag gmbh artificial intelligence shm system model parameter sensor climate chamber experimental setup temperature dependent transfer function dependence germany government machine learning mathematical...

.... A prediction method for dynamic response of hang-off drilling riser based on measured acceleration data and transfer function (TF) theory are proposed and detailed calculation process is developed. The prediction methods contains five procedures: monitoring location and target location determination, transfer...

... wave phase shift calculation time step low-pass filter butterworth low pass filter frequency drift motion transfer function time domain simulation subsea system simulation slow drift motion system function calculation platform cutoff frequency butterworth filter ABSTRACT...

... in waves. Traditionally, calculation of added resistance in actual sea conditions has been treated by spectral analysis using added resistance transfer function and wave spectrum that corresponds to statistical values in short term. Meaning using the estimation of frequency response transfer function...

... is applied to estimate a transfer function of the tank force with respect to waves. The First Order Reliability Method (FORM) is then applied to evaluate extreme tank force distributions. Weak nonlinearity in the force is considered by correcting design points estimated from FORM and the transfer function...

... pressure and pressure at bottom large opening area. (DESSI and MARIANI, 2006) marine transportation experiment characteristic transfer function hull wave load wave height mv2 experimental condition ship length real ship ship model experiment wave direction angle bow acceleration wave...

... Abstract Identification of system transfer function of a ship mounted two-DoF manipulator is challenging due to the existance of randomness in the ocean waves. This paper is presented to address such a task by proposing a time-varying autoregressive moving average with exogenous input (TVARMAX...

... the steady motion of the interaction between the twin hulls, the viscous damping and the effect towed array with the towing ship sailing at a constant speed or turning of the stabilizing fins. Comparisons of motion transfer functions with circles based on the Ablow s method (Yuan, 2013; Wang, 2015; Zhang...

... mooring system sea state practical framework subsea system convolution term assessment wave force fatigue damage upstream oil & gas kurtosis non-gaussian stochastic wave artificial intelligence transfer function wave force transfer function dynamic response psd dynamic...

... subsea system analysis method calculation probability density function artificial intelligence transfer function density function upstream oil & gas platform regular wave fatigue damage frequency spectral fatigue analysis jacket platform fatigue analysis wave period wave...

... size. One concern is how the structure may behave in the sea current and waves (Ma, et al, 2016, Takagi, et al, 2011). frequency optical tracking system aquacultural structure structural response tank transfer function natural frequency semi-submersible structure aquaculture mooring...

..., 2018): upstream oil & gas transfer function cng gas monetization free fall acceleration loading hose arc length subsea system floating production system curvature connection point left side loading cng vessel fpso compressed natural gas axial force sensitivity study cng...

... grid. When Fr =3.6, the maximum transfer function of the model experiment L=3.09, a=0.035 m) is selected as the grid uncertainty analysis condition. Table 3 shows the comparison of the calculated incident wave heights and the motion responses of the double M-craft by three different grid schemes...

... and the performance of a planing hull in terms of seakindliness, safety and powering. Full scale heave and pitch transfer functions, derived from the proposed general integrated analysis, are compared to results obtained from model scale tests in regular head waves. A focal point in the consistency of the results...

.... real-time estimation spectra equation ocean wave artificial intelligence sensor error kalman filter vessel motion ricardo pascoal soare real time system transfer function elevation overestimation sea state estimation ship wave spectrum pascoal frequency wave elevation Real-time...

... of a small real AUV in the air. The transfer functions of vibration acceleration based on the experimental results are presented. INTRODUCTION Autonomous underwater vehicles (AUVs) are increasingly being used in scientific, military, and commercial applications because they can be utilized instead...

... analysis newmark-ß method matrix residue equation transfer function A Method of Dynamic Response Analysis Based on Laplace Transform for Fully Symmetric Floating Platform Ruimin Wanga, Zhenqiang Jiangb,Zhe Tiana, Hongchao Lua, Xujie Wanga, Fushun Liua*, aShandong Province Key Laboratory of Ocean...

..., related research literatures in this specific area are few. In this study, methods and strategies based on continuous identification of natural frequencies and transfer functions of the wind turbine structure are proposed for estimating the loss of functionality of the grout connections. This study...