Analysis of jack-up units using a Constrained NewWave methodology

There is a steadily increasing demand for the use of jack-up units in deeper water and harsher environments. Confidence in their use in these environments requires jack-up analysis techniques to reflect accurately the physical processes occurring. This paper is concerned with the models appropriate...

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Main Authors: Cassidy, M, Taylor, R, Houlsby, G
Format: Journal article
Language:English
Published: 2001
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author Cassidy, M
Taylor, R
Houlsby, G
author_facet Cassidy, M
Taylor, R
Houlsby, G
author_sort Cassidy, M
collection OXFORD
description There is a steadily increasing demand for the use of jack-up units in deeper water and harsher environments. Confidence in their use in these environments requires jack-up analysis techniques to reflect accurately the physical processes occurring. This paper is concerned with the models appropriate for the dynamic assessment of jack-ups, with a balanced approach taken in considering the non-linearities in the structure, foundations and wave loading. A work hardening plasticity model for spud-cans on sand is used for the foundation model. The spectral content of wave loading is considered using New Wave theory, and the importance of random wave histories shown by constraining the deterministic New Waves into a completely random background. A method for determining short-term extreme response statistics for a sea-state using Constrained New Waves is detailed. © 2001 Elsevier Science Ltd. All rights reserved.
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spelling oxford-uuid:58ad1dd8-9979-4c4c-aec4-b87782735e9b2022-03-26T17:04:59ZAnalysis of jack-up units using a Constrained NewWave methodologyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:58ad1dd8-9979-4c4c-aec4-b87782735e9bEnglishSymplectic Elements at Oxford2001Cassidy, MTaylor, RHoulsby, GThere is a steadily increasing demand for the use of jack-up units in deeper water and harsher environments. Confidence in their use in these environments requires jack-up analysis techniques to reflect accurately the physical processes occurring. This paper is concerned with the models appropriate for the dynamic assessment of jack-ups, with a balanced approach taken in considering the non-linearities in the structure, foundations and wave loading. A work hardening plasticity model for spud-cans on sand is used for the foundation model. The spectral content of wave loading is considered using New Wave theory, and the importance of random wave histories shown by constraining the deterministic New Waves into a completely random background. A method for determining short-term extreme response statistics for a sea-state using Constrained New Waves is detailed. © 2001 Elsevier Science Ltd. All rights reserved.
spellingShingle Cassidy, M
Taylor, R
Houlsby, G
Analysis of jack-up units using a Constrained NewWave methodology
title Analysis of jack-up units using a Constrained NewWave methodology
title_full Analysis of jack-up units using a Constrained NewWave methodology
title_fullStr Analysis of jack-up units using a Constrained NewWave methodology
title_full_unstemmed Analysis of jack-up units using a Constrained NewWave methodology
title_short Analysis of jack-up units using a Constrained NewWave methodology
title_sort analysis of jack up units using a constrained newwave methodology
work_keys_str_mv AT cassidym analysisofjackupunitsusingaconstrainednewwavemethodology
AT taylorr analysisofjackupunitsusingaconstrainednewwavemethodology
AT houlsbyg analysisofjackupunitsusingaconstrainednewwavemethodology