... significantly increased. However, free hanging catenary performance became a challenge for ultra-deepwater due to strength loads and high fatigue damage at the TDZ, where Steel Lazy Wave Risers (SLWR) have gained popularity as a viable market solution to improve SCR's performance. Despite SLWR being a popular...

... are related to the methodology used to implement the trench profile underneath the riser. canada government trench profile equivalent stiffness anchor trench steel catenary riser shiri soil model trench mouth fatigue analysis riser fatigue damage trench effect proceedings trench formation...

... ABSTRACT A method is proposed to convert the fatigue damage of each sea state to a constant stress range value. Firstly, the FE model of the semi-submersible platform is established. Secondly, the procedures of the spectral-based fatigue analysis method are clarified. The element with Maximum...

... offshore pipeline onset span length lf14-4 dpp weld root span length assessment operation condition frequency upstream oil & gas fatigue damage residual lay tension dnvgl-rp-f105 maximum lay tension midstream oil & gas lay tension sand wave weld cap viv onset span length...

... ABSTRACT A novel ship fatigue damage's prediction model based on the artificial neural network (ANN) approach is proposed in this paper. The ship motion response is obtained as the input database and the hot spot fatigue damage is obtained as the output database. The relationship between ship...

... scada data stress range distribution scale parameter prediction virtual load strain sensor fatigue damage stress range bin wind turbine weibull distribution Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright...

.... mast investigation fatigue analysis ay 0 load condition fatigue life mast base sea state fatigue phenomenon gravity calculation structural component stress distribution fatigue damage navigation procedure ship evaluation ax 0 alii Proceedings of the Thirty-second (2022...

... ABSTRACT Offshore wind turbine (OWT) gradually attracts people's attention for solving energy shortage and environmental pollution. The fatigue analysis of OWT is our research emphasis, since OWT fatigue damage is one of its main forms of damage during the long term. This paper focuses...

... method is proposed to generate non-Gaussian wind filed using translation process theory and spectral representation method. This study presents a comprehensive investigation on power production and blades fatigue damage of floating offshore wind turbines (FOWTs) to the non-Gaussian wind field...

... ABSTRACT Subsea jumper is an important component of underwater production system. In deep water, vertical M-shape rigid jumper with simple installation is mostly used. Fatigue damage assessment is an important part in the design of M-shape jumper, which usually includes three aspects: vortex...

... in (Madsen et al. 2017), examines the appli- are a number of analytical approaches to describe this relationship, in- cation of a GP surrogate model. The segment model is used to assess cluding Schmidt & Neuper s method (see (Schmidt and Neuper 1997) for the maximally loaded bolt for fatigue damage. Bolt...

... energy frequency turbine upstream oil & gas coupling frequency uwind 11 conservative design maximum tension mooring system line tension wind turbine wave period fatigue damage fatigue analysis offshore wind turbine wave height significant wave height sea condition wind speed...

... elements, using stress coefficients from a local FEA tool. Thus, it forms a link between the global and the local analysis, returning stress results in time domain. These results can for instance be processed further into local fatigue damage, giving an enhanced fatigue life for higher order elements...

...-operated large subsea field development project in Barents Sea - Johan Castberg - for optimized assessment of FIV of a number of rigid production spools, which do not pass the LOF criterion. It is concluded that FIV due to multiphase internal flow is not expected to generate additional fatigue damage...

... parameters to the long-term dynamic performance. artificial intelligence fpso floating production system wind energy optimization problem pontoon angle nacelle acceleration fatigue damage stiffness upstream oil & gas platform subsea system long-term dynamic performance sensitivity...

.... The results show the dominant effect of second-order waves in tower structural fatigue damage. Additionally, wind and wave coupling becomes stronger under second-order wave loads. 1. INTRODUCTION A trend in wind farm development is the shifting of turbines from land to offshore deep water, where conditions...

... ABSTRACT The paper introduces advanced flexible riser design fatigue analysis and describes an innovative method that allows the conversion of measured dynamic riser and vessel response into real time fatigue damage accumulation. This is achieved through a combination of field-proven riser...

... method that can take account of the non-linear coupling effect is used. The coupling effect may usually be considered by using a direct time-domain method which takes account of the combined loads. Fatigue damage of structural details then evaluated by using Miner's rule and rain-flow counting over...

... ABSTRACT The limit state of a newly proposed floating wind turbine concept, in terms of ultimate structural load and fatigue damage load, is studied in the present work. This novel floating structure utilizes a triple-column spar platform to support the wind turbine. An aero-hydro-servo-elastic...

... also have uncertainty. monte carlo simulation significance fatigue analysis steel catenary riser elementary effect coefficient drag coefficient probability tdp morris method fatigue damage tdz interaction scr fatigue scr fatigue life sensitivity analysis Probability study...