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Keywords: fatigue damage
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Proceedings Papers
Evaluation of Truss Tower for Large Capacity Turbine Tension Leg Platforms
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 5–8, 2025
Paper Number: OTC-35885-MS
... in this paper. Background sustainability platform design social responsibility sustainable development subsea system frequency turbine requirement tubular tower truss tower wave scatter diagram sea state fatigue damage tower design wind turbine natural frequency fatigue life spectrum...
Proceedings Papers
An Innovative Deepwater Umbilical VIV Analysis Method Incorporating Current Directionality
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 5–8, 2025
Paper Number: OTC-35928-MS
... VIV fatigue damage of the subsea umbilicals is impacted by both the umbilical cross-sectional design (geometry, mass, materials) and the global configuration. Subsea umbilicals are subjected to complex interactions due to the friction and sliding between the internal layers and components. When...
Proceedings Papers
FPSO Life Extension by Optimizing Cargo Load Management
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32540-MS
... assessment process. Development of Load Optimizer Besides the reassessment of the Hull fatigue damage considering the actual past service life, the obtained results and practical correlations provide the necessary information for developing a computational tool to optimize the loading conditions...
Proceedings Papers
CO 2 Pipeline Integrity Management: A Digital Twin Approach
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32163-MS
.... A computational model of pipeline fatigue damage, which is affected by temperature and pressure mainly, in the pipelines is developed to predict the fatigue damage under specific circumstances. Integration of multiple sensors in the pipeline can avoid early failure and maintain it proactively. CO 2 could...
Proceedings Papers
Pipeline Fatigue Damage Monitoring During Hydrogen Transportation
Available to PurchasePublisher: 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
Introducing a Novel Shaped Steel Catenary Riser for Deepwater Applications
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32179-MS
... intelligence configuration floating production system europe government riser catenary riser shaped steel catenary riser criteria sscr riser configuration novel shaped steel catenary riser fatigue damage offshore technology conference variation buoyancy section steel catenary riser titanium...
Proceedings Papers
A Modal Approach for Holistic Hull Structure Monitoring from Strain Gauges Measurements and Structural Analysis
Available to PurchasePublisher: 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
Aoka Mizu FPSO Hybrid Twin Pilot - A Spectral Approach for Holistic Hull Structure Monitoring from Strain Gauges Measurements and Structural Analysis
Available to PurchasePublisher: 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
Hull Condition Monitoring and Lifetime Estimation by the Combination of On-Board Sensing and Digital Twin Technology
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-30977-MS
..., API RP 581 15 ) , HPIS Z 107 16 ) , the physic-model-based failure prediction can be efficiently improved for hull structural health management. Secondary, the status of fatigue damage and the future fatigue life are evaluated based on the frequency response analysis, not time-domain...
Proceedings Papers
Structural Digital Twin of FPSO for Monitoring the Hull and Topsides Based on Inspection Data and Load Measurement
Available to PurchaseShankar 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
... fatigue damage offshore technology conference In the next sections we provide an overview of the SDT, including the novel approach used to provide fast and high-fidelity FPSO structural analysis that is optimized for operational use-cases, followed by discussion of the approach used to generate...
Proceedings Papers
A Real Time Fatigue Monitoring Platform for Flexible Risers
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31267-MS
... to estimate fatigue damage of tensile wires. However, given the measurement is a point data, it will be both economically and technically challenging to install sensors on all tensile wires at all fatigue sensitive locations. On the other hand, other data indirectly related to tensile fatigue...
Proceedings Papers
Subsea Tree Fatigue Mitigation Solutions For Shallow Water Drilling
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31282-MS
... evaluation will be discussed. This will highlight the current assumptions 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 drilling equipment...
Proceedings Papers
Cable JIP: A Research Project to Assess the Feasibility of a Semi-Static Electrical Subsea Cable for the Power Take-off from a TLP-type Floating Offshore Wind Turbine
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31209-MS
... cable jip research project fatigue damage offshore technology conference od 50 calculation electrical cable power cable wave height research cable oscillation test hexapod Introduction The application of a static cable for dynamic applications has not yet been done in the offshore oil...
Proceedings Papers
Validation of Spectral Fatigue Assessment of a West-Africa FPSO Using Full-Scale Measurements
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31166-MS
..., maintenance, or lifetime extension. The work presented is based on such information gathered during a measurement campaign performed on a spread-moored FPSO in West Africa. Measured strain time histories at several locations on the hull have been used to derive the actual fatigue damage endured by the unit...
Proceedings Papers
Advances in Offshore Structural Analysis Using Response-Based Time-Domain Approach
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31280-MS
... and fatigue damage calculations resulting from the linear assumption of environmental loads and hull responses. Present time domain structural analysis methodology provides an innovative, cutting-edge approach providing accuracy and fewer uncertainties, which can be pragmatically used during a typical project...
Proceedings Papers
Flexible Riser Fatigue Counter Powered by Digital Techniques
Available to PurchasePublisher: 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
Fatigue of Slender Offshore Structures: Moorings, Risers, and Umbilicals
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30814-MS
.... In general, there are two distinct approaches to fatigue analysis [1]: 1. Stress-life cumulative damage models (T-N or S-N approach) Predicting fatigue life, considering the cumulative fatigue damage, where a failure occurs after a number of loading cycles N, at a particular tension range T or stress range...
Proceedings Papers
Practice of Riser-Soil Interactions at Touch Down Zones for Steel Catenary Risers
Available to PurchasePublisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29553-MS
... predictions and small scale pipe-soil interaction model test results, reduced scale sectional SCR model test results, and the latest study in the literature. upstream oil & gas soil model fatigue assessment soil stiffness fatigue damage riser-soil interaction offshore technology conference...
Proceedings Papers
STREAM JIP – Insights into Steel Catenary Riser Response Using Measured Data
Available to PurchaseDhyanjyoti 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
... that not only reduces fatigue damage bias but also improves the reliability in predictions. Recommendations are made with regards to further refinement of analysis parameters and understanding of atypical riser responses. Measured riser response that does not conform to typical wave and VIV spectra...
Proceedings Papers
A Family of Practical Foundation Models for Dynamic Analyses of Offshore Wind Turbines
Available to PurchasePublisher: 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...
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