Investigation of the complex dynamics of float-over deck installation based on a coupled heave-roll-pitch impact model
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.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00298018
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Supplemental Notes:
- Abstract reprinted with permission of Elsevier.
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Authors:
- Chen, Mingsheng
- Taylor, Rodney Eatock
- Choo, Yoo Sang
- Publication Date: 2017-6-1
Language
- English
Media Info
- Media Type: Web
- Features: Figures; References; Tables;
- Pagination: pp 262-275
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Serial:
- Ocean Engineering
- Volume: 137
- Publisher: Pergamon
- ISSN: 0029-8018
- EISSN: 1873-5258
- Serial URL: http://www.sciencedirect.com/science/journal/00298018
Subject/Index Terms
- TRT Terms: Barges; Decks (Ships); Excitation; Heaving (Ship motion); Hydrodynamics; Impact loads; Mathematical models; Pitch (Dynamics); Rolling; Time domain analysis
- Subject Areas: Hydraulics and Hydrology; Marine Transportation; Terminals and Facilities;
Filing Info
- Accession Number: 01635375
- Record Type: Publication
- Files: TRIS
- Created Date: May 25 2017 9:39AM