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Numerical analysis on mathieu instability of a top-tensioned riser in a dry-tree semisubmersible

The development of a dry-tree semisubmersible (DTS), a new type offshore hydrocarbon production system, is facing unconventional challenges in the issues of dynamic stability, structural integrity, and parametric resonance. The Mathieu equation is used to assess the dynamic stability of a top-tensio...

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Main Authors: Kang, H. S., Kim, M. H., Aramanadka, S. S. B.
Format: Article
Published: Asme, Two Park Ave, New York 2020
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/86403/
https://dx.doi.org/10.1115/1.4045094
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spelling my.utm.864032020-10-13T02:06:49Z http://eprints.utm.my/id/eprint/86403/ Numerical analysis on mathieu instability of a top-tensioned riser in a dry-tree semisubmersible Kang, H. S. Kim, M. H. Aramanadka, S. S. B. TJ Mechanical engineering and machinery The development of a dry-tree semisubmersible (DTS), a new type offshore hydrocarbon production system, is facing unconventional challenges in the issues of dynamic stability, structural integrity, and parametric resonance. The Mathieu equation is used to assess the dynamic stability of a top-tensioned riser (TTR) in order to prevent the parametric resonance which leads to detrimental effects on structural integrity. The objectives of this paper are to (i) study a Mathieu stability diagram and its coefficients for an assessment of the stability of a TTR, (ii) identify the effects of the dynamic tension variations in the Mathieu stability assessment, and (iii) analyze the stability of the TTR on a DTS, which is equipped with a long-stroke tensioner, by using numerical simulation. The dynamic tension variation in the DTS was identified to induce instability in the TTR. Hence, the Mathieu stability assessment is recommended to be included in an analysis of TTR behaviors in a dry-tree interface of semisubmersibles. Asme, Two Park Ave, New York 2020 Article PeerReviewed Kang, H. S. and Kim, M. H. and Aramanadka, S. S. B. (2020) Numerical analysis on mathieu instability of a top-tensioned riser in a dry-tree semisubmersible. Journal of Offshore Mechanics and Arctic Engineering-Transactions of the Asme, 142 (2). https://dx.doi.org/10.1115/1.4045094 DOI:10.1115/1.4045094
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Kang, H. S.
Kim, M. H.
Aramanadka, S. S. B.
Numerical analysis on mathieu instability of a top-tensioned riser in a dry-tree semisubmersible
description The development of a dry-tree semisubmersible (DTS), a new type offshore hydrocarbon production system, is facing unconventional challenges in the issues of dynamic stability, structural integrity, and parametric resonance. The Mathieu equation is used to assess the dynamic stability of a top-tensioned riser (TTR) in order to prevent the parametric resonance which leads to detrimental effects on structural integrity. The objectives of this paper are to (i) study a Mathieu stability diagram and its coefficients for an assessment of the stability of a TTR, (ii) identify the effects of the dynamic tension variations in the Mathieu stability assessment, and (iii) analyze the stability of the TTR on a DTS, which is equipped with a long-stroke tensioner, by using numerical simulation. The dynamic tension variation in the DTS was identified to induce instability in the TTR. Hence, the Mathieu stability assessment is recommended to be included in an analysis of TTR behaviors in a dry-tree interface of semisubmersibles.
format Article
author Kang, H. S.
Kim, M. H.
Aramanadka, S. S. B.
author_facet Kang, H. S.
Kim, M. H.
Aramanadka, S. S. B.
author_sort Kang, H. S.
title Numerical analysis on mathieu instability of a top-tensioned riser in a dry-tree semisubmersible
title_short Numerical analysis on mathieu instability of a top-tensioned riser in a dry-tree semisubmersible
title_full Numerical analysis on mathieu instability of a top-tensioned riser in a dry-tree semisubmersible
title_fullStr Numerical analysis on mathieu instability of a top-tensioned riser in a dry-tree semisubmersible
title_full_unstemmed Numerical analysis on mathieu instability of a top-tensioned riser in a dry-tree semisubmersible
title_sort numerical analysis on mathieu instability of a top-tensioned riser in a dry-tree semisubmersible
publisher Asme, Two Park Ave, New York
publishDate 2020
url http://eprints.utm.my/id/eprint/86403/
https://dx.doi.org/10.1115/1.4045094
_version_ 1681489482719690752
score 13.211869

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