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Keywords: fatigue damage
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Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32500-MS
.... The digital twin system comprises three main components. A computational finite element-based model of the crack defect in the pipe is developed to calculate the stress intensity factor (SIF) for different crack lengths and depths. The computation model is used to estimate the fatigue damage. The input...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31850-MS
... Abstract Bluewater has partnered with DNV to pilot the hybrid twin solution on the Aoka Mizu FPSO, using data from that sensor system to monitor the fatigue damage in the hulland then update the RBI inspection plan accordingly (if needed). In this paper, the hybrid twin method is presented...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31789-MS
... simulations. The method is validated numerically by simulating measurements in an analysis and using them to reconstruct the complete response. Then actual strain gauges’ measurements on a hull are used to validate the method on a real case. Both fatigue damages and extreme stress values are compared...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31166-MS
... 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...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31209-MS
... system platform design wind energy sustainability wave basin model test od 50 cable jip research project electrical cable power cable fatigue damage calculation research cable oscillation test offshore projects planning and execution social responsibility basin model test tlp-type fowt...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-30977-MS
... it by the fatigue damage factor at the time of designing the evaluation member. Instead of the fatigue damage factor, the fatigue damage probability may be used as needed. (1) D P = ( S u m of PMF ) ⋅ ( Value of Damage Factor in design life ) In addition, RF organizes items related...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31267-MS
... measurement of the strain at the interested locations. The fiber response value can be directly related to the stress in the tensile wire in designated direction. The stress variations are then used to estimate fatigue damage of tensile wires. However, given the measurement is a point data, it will be both...
Proceedings Papers
Shankar Bhat, Varadarajan Nadathur, David Knezevic, Pieter Aalberts, Hans Kolsters, Daniel Amuda, Orobome Atebe, Dharma Pasala, Tuyen Hoang, Trong Luong, Phuong Huynh, Riccardo Righetti, Remco Hageman, Jim Yu
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31328-MS
... modeling inspection data lifetime consumption as-is state workflow rb-fea fpso hotspot floating production storage and offloading fatigue analysis sensor measurement structural analysis fatigue damage offshore technology conference Introduction Operators and class societies have long...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31280-MS
... failure during a facility's lifetime. A comparison indicates that conventional structural analysis methods provide conservative results for both structural strength and fatigue damage calculations resulting from the linear assumption of environmental loads and hull responses. Present time domain...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31282-MS
... and unknowns in data that can form the subject of evaluation for a future joint industry study. subsea system modeling refinement operation outer barrel auxiliary line viv fatigue life fatigue damage upstream oil & gas diameter subsea tree fatigue mitigation solution drilling equipment...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30814-MS
... performance interaction critical location cross-section slender offshore structure upstream oil & gas offshore structure drag coefficient mooring system fatigue damage DNV GL . DNVGL-RP-C203 . Fatigue Design of Offshore Steel Structure, December 2019 . Vijayaraghavan , V...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30635-MS
... updates of accumulated fatigue damage and remaining service life. This enables the operating company to build contextualized and high value dashboards presented on their organizational front end. The paper illustrates the power and applicability of combining modern numerical methods with digital...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29553-MS
... stiffness scr simulation model test interaction clukey fatigue damage riser-soil interaction linear elastic soil model Al-Janabi H , Aubeny C , Chen JB and Luo M. ( 2019 ) Experimental Measurement of Touchdown Zone Stiffness for SCR in Gulf of Mexico Clay Offshore...
Proceedings Papers
Dhyanjyoti Deka, Yenny Chandra, Mike Campbell, Markku Santala, Yiannis Constantinides, Joe Jin, Ilkay Darilmaz, Raja Nadathur, Flora Yiu
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29239-MS
.... , Campbell , R.B. , and Slocum , S.T. 2008 . VIV Model Test Data Comparison with SHEAR7 4.5 . Presented at the 27th International Conference on Offshore Mechanics and Arctic Engineering , Estoril , 15 – 20 June . OMAE2008-57108 . fatigue damage scr offshore technology conference riser...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29460-MS
... Bandara , C. S. , Siriwardane , S. C. , Dissanayake , U. I. , & Dissanayake , R. ( 2015 ). Developing a full range S-N curve and estimating cumulative fatigue damage of steel elements . Computational Materials Science , 96 , 96 – 101 . Lai , M. T...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29463-MS
... of the models are demonstrated through two practical problems that reflect typical design analyses of OWTs: the first example shows a fatigue damage assessment for a monopile, and the second considers an extreme load event for a suction bucket jacket. The structural response is computed using the REDWIN...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29596-MS
... clusters. A cluster by cluster contribution to wave frequency fatigue damage at the SCR touchdown is shown in Figure 9. The first six clusters contribute to > 50% of the total TDP damage. Clusters 32 onwards have minimum impact at the touchdown region < 1%. These include small waves with very high gamma...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29608-MS
... strength and fatigue with the contributions from wave fatigue, VIM and VIV. The factored riser fatigue life is provided with the original safety factors to meet the intended 10 more years of service life. keel joint design life fatigue damage offshore technology conference life extension dynamic...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28673-MS
... the fatigue life of critical joints in the Baldpate tower. axial tube fatigue damage assessment compliant tower wellbore integrity sway period fatigue sensitivity knowledge management friction lockup upstream oil & gas inspection scope frequency inspection fatigue analysis tower...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-29060-MS
.... The TDZ fatigue damage is observed to be lower when background current is applied along riser in the motion fatigue analysis, even if the current direction is perpendicular to the riser motion direction. Finally, the motion fatigue response is observed to be better with a shorter strake length compared...
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