A surrogate model for evaluation of maximum normalized dynamic load factor in moving load model for pipeline spanning due to slug flow
Understanding the problem of slug-flow-induced fatigue damage is of particular importance to the reliable operation of pipelines. Slug flow, across unsupported pipeline spans, produces dynamic vibrations in the pipeline resulting in cyclical fatigue stresses. These dynamic effects will cause the pip...
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Rio de Janeiro, Brazil ASME
2012
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ftfederationuniv:vital:5277 2023-05-15T15:13:25+02:00 A surrogate model for evaluation of maximum normalized dynamic load factor in moving load model for pipeline spanning due to slug flow Sultan, Ibrahim Reda, Ahmed Forbes, Gareth 2012 http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/39963 http://www.scopus.com/inward/record.url?eid=2-s2.0-84884480027∂nerID=40&md5=f949b92f8d3fc0852cd423358737ee3e unknown Rio de Janeiro, Brazil ASME http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/39963 vital:5277 http://www.scopus.com/inward/record.url?eid=2-s2.0-84884480027∂nerID=40&md5=f949b92f8d3fc0852cd423358737ee3e Copyright ASME This metadata is freely available under a CCO license Damping characteristics Dynamic load factor Finite element packages Functional relationship Mathematical procedures Normalized dynamics Optimization studies Various model parameters Arctic engineering Computer simulation Dynamic loads Finite element method Pipelines Stress concentration Dynamic models Text Conference proceedings 2012 ftfederationuniv 2022-12-01T19:05:51Z Understanding the problem of slug-flow-induced fatigue damage is of particular importance to the reliable operation of pipelines. Slug flow, across unsupported pipeline spans, produces dynamic vibrations in the pipeline resulting in cyclical fatigue stresses. These dynamic effects will cause the pipeline to fail at a point of stress concentration if proper design procedure is not followed. The response of a pipeline span, under the passage of slug flow, can be represented by dynamic load factors that are functions of the speed ratio and damping characteristics of the span. The aspects of these functional relationships are investigated, in this paper by conducting multiple simulations at different speed ratios and damping factors. The data obtained from the steady state Fourier expansion will, consequently, be used to produce a surrogate model with a level of accuracy that adequately qualifies it for use in determining dynamic loading of pipelines. The closed-form surrogate model can be used to eliminate the need to employ costly mathematical procedures or finite element packages for the analysis. The model will also provide a solid ground for optimization studies and help designers gain an insight into how various model parameters impact the system response. This paper will demonstrate the aspects of a proposed surrogate model and endeavor to obtain parameter domains within which the model's reliability is ensured. A numerical example will be demonstrated to prove the concepts presented in the paper and confirm the validity of the proposed model. Copyright © 2012 by ASME. C1 Conference Object Arctic Federation University Australia: Federation ResearchOnline Arctic |
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Open Polar |
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Federation University Australia: Federation ResearchOnline |
op_collection_id |
ftfederationuniv |
language |
unknown |
topic |
Damping characteristics Dynamic load factor Finite element packages Functional relationship Mathematical procedures Normalized dynamics Optimization studies Various model parameters Arctic engineering Computer simulation Dynamic loads Finite element method Pipelines Stress concentration Dynamic models |
spellingShingle |
Damping characteristics Dynamic load factor Finite element packages Functional relationship Mathematical procedures Normalized dynamics Optimization studies Various model parameters Arctic engineering Computer simulation Dynamic loads Finite element method Pipelines Stress concentration Dynamic models Sultan, Ibrahim Reda, Ahmed Forbes, Gareth A surrogate model for evaluation of maximum normalized dynamic load factor in moving load model for pipeline spanning due to slug flow |
topic_facet |
Damping characteristics Dynamic load factor Finite element packages Functional relationship Mathematical procedures Normalized dynamics Optimization studies Various model parameters Arctic engineering Computer simulation Dynamic loads Finite element method Pipelines Stress concentration Dynamic models |
description |
Understanding the problem of slug-flow-induced fatigue damage is of particular importance to the reliable operation of pipelines. Slug flow, across unsupported pipeline spans, produces dynamic vibrations in the pipeline resulting in cyclical fatigue stresses. These dynamic effects will cause the pipeline to fail at a point of stress concentration if proper design procedure is not followed. The response of a pipeline span, under the passage of slug flow, can be represented by dynamic load factors that are functions of the speed ratio and damping characteristics of the span. The aspects of these functional relationships are investigated, in this paper by conducting multiple simulations at different speed ratios and damping factors. The data obtained from the steady state Fourier expansion will, consequently, be used to produce a surrogate model with a level of accuracy that adequately qualifies it for use in determining dynamic loading of pipelines. The closed-form surrogate model can be used to eliminate the need to employ costly mathematical procedures or finite element packages for the analysis. The model will also provide a solid ground for optimization studies and help designers gain an insight into how various model parameters impact the system response. This paper will demonstrate the aspects of a proposed surrogate model and endeavor to obtain parameter domains within which the model's reliability is ensured. A numerical example will be demonstrated to prove the concepts presented in the paper and confirm the validity of the proposed model. Copyright © 2012 by ASME. C1 |
format |
Conference Object |
author |
Sultan, Ibrahim Reda, Ahmed Forbes, Gareth |
author_facet |
Sultan, Ibrahim Reda, Ahmed Forbes, Gareth |
author_sort |
Sultan, Ibrahim |
title |
A surrogate model for evaluation of maximum normalized dynamic load factor in moving load model for pipeline spanning due to slug flow |
title_short |
A surrogate model for evaluation of maximum normalized dynamic load factor in moving load model for pipeline spanning due to slug flow |
title_full |
A surrogate model for evaluation of maximum normalized dynamic load factor in moving load model for pipeline spanning due to slug flow |
title_fullStr |
A surrogate model for evaluation of maximum normalized dynamic load factor in moving load model for pipeline spanning due to slug flow |
title_full_unstemmed |
A surrogate model for evaluation of maximum normalized dynamic load factor in moving load model for pipeline spanning due to slug flow |
title_sort |
surrogate model for evaluation of maximum normalized dynamic load factor in moving load model for pipeline spanning due to slug flow |
publisher |
Rio de Janeiro, Brazil ASME |
publishDate |
2012 |
url |
http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/39963 http://www.scopus.com/inward/record.url?eid=2-s2.0-84884480027∂nerID=40&md5=f949b92f8d3fc0852cd423358737ee3e |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/39963 vital:5277 http://www.scopus.com/inward/record.url?eid=2-s2.0-84884480027∂nerID=40&md5=f949b92f8d3fc0852cd423358737ee3e |
op_rights |
Copyright ASME This metadata is freely available under a CCO license |
_version_ |
1766343972679057408 |