Field Implementation of RBI for Jacket Structures

Faber, Michael Havbro; Straub, Daniel; Sørensen, John Dalsgaard; Tychsen, Jesper

doi:10.1115/omae2003-37304

Cited by 11 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[108,118,111]) or offshore steel structures (see e.g. [52,80]). There are also some probabilistic reliability studies for tidal turbines [121,122,120].…”

Section: Probabilistic Reliability Assessmentmentioning

confidence: 99%

Reliability of Wave Energy Converters

Ambühl¹

2015

Reliability of Wave Energy Converters

View full text Add to dashboard Cite

This work would not have been possible without the support of many people. First I would like to thank my supervisor Professor John Dalsgaard Sørensen for his advice, encouragement and guidance during my work. His knowledge has been a great inspiration to me. Thanks also go to Associate Professor Jens Peter Kofoed for the support concerning the wave energy sector. Furthermore, I would like to thank Associate Professor Morten Kramer for organising the collaboration with Wavestar A/S and for the helpful discussions about the technical background of this kind of device. Also, thanks to our contacts from DNV-GL, especially Claudio F. Bittencourt, for sharing their knowledge about wave energy devices and for showing the problems from an industrial perspective. Thanks to my colleagues at the Department of Civil Engineering for the fruitful discussions we had during the 10 o'clock break and the time we spent together during our spare time. Also, many thanks to the secretary staff at the department, who made it a warm welcome when starting the PhD and helped me a lot with different paperwork.

show abstract

“…[108,118,111]) or offshore steel structures (see e.g. [52,80]). There are also some probabilistic reliability studies for tidal turbines [121,122,120].…”

Section: Probabilistic Reliability Assessmentmentioning

confidence: 99%

Reliability of Wave Energy Converters

Ambühl¹

2015

Reliability of Wave Energy Converters

View full text Add to dashboard Cite

show abstract

“…The design parameter z * is determined from the design equation (3). Next, the reliability index (or the probability of failure) is calculated using this design value and the limit state function associated with (3).…”

Section: Sn-curve Approachmentioning

confidence: 99%

“…Following the approach outlined above it is possible to establish so-called generic inspection plans, cf. Faber et al [3]. The idea is to establish pre-fabricated inspection plans for different joint types designed for different fatigue lives.…”

Section: Implementation Of Generic Rbi In Iplanmentioning

confidence: 99%

“…For practical application of the methodology, a database iPlan, used by Maersk Oil and Gas, has been developed, cf. Faber et al [3]. The iPlan database is developed to obtain inspection plans from interpolation between the pre-defined generic plans and facilitates the straightforward production of large numbers of inspection plans for structural details subject to fatigue deterioration.…”

Section: Implementation Of Generic Rbi In Iplanmentioning

confidence: 99%

“…More results can be found in Graugaard-Jensen et al [2]. The theory of risk based inspection planning is given according to Faber et al [3].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Reduction in Inspection Costs for Dynamic Sensitive Steel Structures by Modal Based Fatigue Monitoring

Hjelm¹,

Sørensen

Brincker

et al. 2005

24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 2

Self Cite

View full text Add to dashboard Cite

In risk based inspection planning the number of planned inspections directly depends on the uncertainty on the load history. In this paper it is shown how this uncertainty can be reduced by modal based fatigue monitoring. The technique is based on continuously measuring of the accelerations in few points of the structure. The accelerations are integrated to obtain the displacement and a modal decomposition of the obtained displacements is performed. The relation between the modal coordinates and the stress history in an arbitrary point of the structure is established by a calibrated finite element model. The technique has been applied on a wind loaded lattice pylon structure and compared with strain gauges measurements, showing that the uncertainty on the presented technique is quite small. It is shown that if the technique is applied to an offshore steel structure, then the number of required inspections may be reduced with more than 50%.

show abstract

Reassessment of Fixed Offshore Structures

Stewart

2017

Encyclopedia of Maritime and Offshore Engineering

View full text Add to dashboard Cite

Existing offshore platforms are valuable assets for operators, and optimizing their useful life to maximize profitability is an ongoing challenge. Reassessment is required from time to time to ensure that the structures remain safe and reliable. This can be instigated for a variety of reasons such as increased topside or environmental loading or damage. Wave‐in‐deck loads resulting from rare events pose a particular concern. Nonlinear pushover models enable the full benefit of structural capacity to be realized, while structural reliability assessments allow risk‐based decisions to be made. This article reviews the present methodologies for nonlinear structural modeling, pushover assessments (including static, cyclic, and dynamic procedures), environmental statistics including wave‐in‐deck loading, and structural reliability assessments and provides a comment on some of the limitations and potential pitfalls of these.

show abstract

Field Implementation of RBI for Jacket Structures

Cited by 11 publications

References 0 publications

Reliability of Wave Energy Converters

Reliability of Wave Energy Converters

Reduction in Inspection Costs for Dynamic Sensitive Steel Structures by Modal Based Fatigue Monitoring

Reassessment of Fixed Offshore Structures

Contact Info

Product

Resources

About