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Investigation of the complex dynamics of float-over deck installation based on a coupled heave-roll-pitch impact model.

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Title: Investigation of the complex dynamics of float-over deck installation based on a coupled heave-roll-pitch impact model.
Authors: Chen, Mingsheng1,2 mschen@whut.edu.cn, Eatock Taylor, Rodney3, Choo, Yoo Sang4
Source: Ocean Engineering. Jun2017, Vol. 137, p262-275. 14p.
Subjects: Structural engineering, Theory of wave motion, Impact loads, Damping (Mechanics), Springs (Mechanisms)
Abstract: This paper describes an efficient methodology for analysing the dynamics of float-over deck installation, particularly arising from the wave-induced impacts between multiple structures. A coupled heave-roll-pitch impact model is developed in the time-domain to analyse the complex impact behaviour associated with float-over deck installations. The resulting time-domain model is very efficient since the time-consuming convolution terms are replaced by state-space models. The shock absorbers known as Leg Mating Units (LMUs) at the deck-to-substructure (DTS) connections, and Deck Support Units (DSUs) at the deck-to-barge (DTB) connections, are modelled as spring-damper systems with limited load capacities. By considering the coupled heave-roll-pitch motions of the float-over system, the resulting impact model is applied to analyse the complex vertical interactions between the deck and barge and between the deck and substructure at both the 0% and 100% load transfer stages. LMU/DSU impacts and DTS/DTB impacts are analysed here. In addition, the effects of varying wave excitations are investigated based on the coupled impact model. [ABSTRACT FROM AUTHOR]
Copyright of Ocean Engineering is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 122948331
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Investigation of the complex dynamics of float-over deck installation based on a coupled heave-roll-pitch impact model.
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  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Mingsheng%22">Chen, Mingsheng</searchLink><relatesTo>1,2</relatesTo><i> mschen@whut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Eatock+Taylor%2C+Rodney%22">Eatock Taylor, Rodney</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Choo%2C+Yoo+Sang%22">Choo, Yoo Sang</searchLink><relatesTo>4</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Ocean+Engineering%22">Ocean Engineering</searchLink>. Jun2017, Vol. 137, p262-275. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Structural+engineering%22">Structural engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Theory+of+wave+motion%22">Theory of wave motion</searchLink><br /><searchLink fieldCode="DE" term="%22Impact+loads%22">Impact loads</searchLink><br /><searchLink fieldCode="DE" term="%22Damping+%28Mechanics%29%22">Damping (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Springs+%28Mechanisms%29%22">Springs (Mechanisms)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper describes an efficient methodology for analysing the dynamics of float-over deck installation, particularly arising from the wave-induced impacts between multiple structures. A coupled heave-roll-pitch impact model is developed in the time-domain to analyse the complex impact behaviour associated with float-over deck installations. The resulting time-domain model is very efficient since the time-consuming convolution terms are replaced by state-space models. The shock absorbers known as Leg Mating Units (LMUs) at the deck-to-substructure (DTS) connections, and Deck Support Units (DSUs) at the deck-to-barge (DTB) connections, are modelled as spring-damper systems with limited load capacities. By considering the coupled heave-roll-pitch motions of the float-over system, the resulting impact model is applied to analyse the complex vertical interactions between the deck and barge and between the deck and substructure at both the 0% and 100% load transfer stages. LMU/DSU impacts and DTS/DTB impacts are analysed here. In addition, the effects of varying wave excitations are investigated based on the coupled impact model. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ocean Engineering is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.oceaneng.2017.04.007
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 14
        StartPage: 262
    Subjects:
      – SubjectFull: Structural engineering
        Type: general
      – SubjectFull: Theory of wave motion
        Type: general
      – SubjectFull: Impact loads
        Type: general
      – SubjectFull: Damping (Mechanics)
        Type: general
      – SubjectFull: Springs (Mechanisms)
        Type: general
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      – TitleFull: Investigation of the complex dynamics of float-over deck installation based on a coupled heave-roll-pitch impact model.
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            NameFull: Chen, Mingsheng
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            NameFull: Eatock Taylor, Rodney
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            NameFull: Choo, Yoo Sang
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            – D: 01
              M: 06
              Text: Jun2017
              Type: published
              Y: 2017
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              Value: 137
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