... inspection strain gauge fatigue damage probability time series reconstruction fatigue life standard deviation spectrum Background Inspections of offshore assets may be an expensive process. Costs are related to planning, mobilization, inspection, and impact on operations. Undetected damages...

... response to the true response obtained from a monitoring campaign. An in-depth analysis is made based on measurements performed over a period of approximately 2.5 years in true operating conditions. The standard deviation of the stress response and the total fatigue damage are compared at 12 different...

... surface wind field turbine hub height surface wind standard deviation sar surface wind wind speed satellite observation Introduction The transition for a decarbonized and renewable energy has accelerated in recent years and the offshore wind generated energy seems to be the most promising...

... wave height data assimilation real time system wave power ocean energy sustainable development offshore technology conference prediction computational domain sustainability social responsibility standard deviation us government enkf wave energy converter power prediction confidence...

... data is not that meaningful. We developed parametric data procedures so that the same routine can handle different types of data and their errors. Outlier removal routines use the standard deviation of the time-series which itself could be biased from errors. Therefore, a method to compute unbiased...

... facility floating production system wind tunnel testing geometry standard deviation mean value comparative study wind load lift force variability wind tunnel tunnel comparative wind load study even-keel condition artificial intelligence drilling equipment wind load estimation method subsea...

... than deterministic analyses alone, both for design and for reevaluation. Managing geotechnical risks should today become a natural part of the engineer's work. method uncertainty characteristic value risk management failure probability annual probability nadim standard deviation risk...

... Abstract The paper describes two approaches for deriving the mean, standard deviation and probability density function of the method uncertainty for five axial capacity pile design methods, namely the API, Fugro, ICP, NGI and UWA methods. A new unified database of pile load tests recently...

... to communicate and recommend the design life capabilities of a product to the operator to predict life expectancy for combinations of expected load scenarios. histogram standard deviation testing program design point asme section viii div hpht equipment fatigue analysis artificial intelligence load...

... elevation models (DEMs) with idealized perturbations representing seafloor subsidence and faulting, this paper examines limits to seafloor change detection using repeat MBES surveys in terms of the standard deviation of the noise in the surveys. In general, the magnitude of vertical change between surveys...

... factor column position maximum tilt efficiency standard deviation Kister H. Z. , Steinmeyer , P. M. D. E. , Penny , W. R. , Crocker B. B. , Fair J. R. 2008 ; Perry's Chemical Engineers’ Handbook 8 th Edition , Equipment for Distillation and Gas Absorption: Packed...

... & gas natural frequency deployment fatigue damage drilling riser low frequency response top tension wellhead fatigue fatigue damage rate operation standard deviation drilling equipment configuration American Petroleum Institute – " Design of Risers for Floating Production Systems...

.... mean curve subsea system test specimen standard deviation material model div complex reservoir material curve standard deviation internal pressure hpht envelope strength upstream oil & gas drilling equipment offshore technology conference condition capacity curve high pressure high...

... characterization magnitude standard deviation confidence level upstream oil & gas bayesian inference information quality control criteria petrophysical parameter resistivity Rau R. , Davies R. , Finke M. , Manning M. , " Advances in high frequency dielectric logging...

... coefficient soil condition swp prediction method offshore technology conference wind energy monopile standard deviation Anusic , A. , Eiksund G. R. and Liingaard , M. A. ( 2016 ). Comparison of pile driveability methods based on a case study from an offshore wind farm in North...

... that are well characterized by normal, lognormal, and Weibull distributions, which defined by the mean, , and standard deviation, , of the natural log of a set of the random variable, X. The relationship between the coefficient of variation, V, and standard deviation with these parameters is given...

... a pseudo- fatigue damage based on the standard deviation of the wave induced vertical motion at the attachment point of Riser no. 10 (see Tables 9 and 10). The formula assumes that the stress-response fatigue damage is proportional to the aforementioned standard deviation raised to the power m, being m...

... used with the direct method to obtain bending moments at WH datum was estimated to be 1.12. The standard deviation of each hour of bending moment signal can be used to generate a trend plot showing the system behaviour over time. Figure 4 Comparison of direct and indirect method at sensor location...

... water cut reservoir pressure upstream oil & gas control valve modeling & simulation level control flowline geometry pipeline model flow rate dynamic simulation pipeline transient behavior subsea separator production flowline separation and treating process model standard deviation...

..., maximum measured current speeds at all locations were approximately 2.5 m/s. Consistency in flow direction helps dictate mooring configurations that might be applicable to a location. The standard deviation in flow direction (Figure 3-top right) shows that flow direction is more consistent as distance...