MSc in Oil & Gas and Offshore Engineering

Course Details

Course Information Package

Course Unit TitleCOASTAL AND OFFSHORE ENGINEERING APPLICATIONS
Course Unit CodeMOE514
Course Unit DetailsMSc Oil & Gas and Offshore Engineering (Elective Courses) -
Number of ECTS credits allocated7
Learning Outcomes of the course unitBy the end of the course, the students should be able to:
  1. Assess the wave forces and the hydrodynamic characteristics of several type of floating structures (spar buoys, semi-submersible, TLP’s, articulated towers).
  2. Evaluate the dynamic motion response analysis of several floating concepts, including interconnected floating structures.
  3. Be familiar with the conflicting design requirements resulting from safety, floating stability, response to waves, as well as with the hydrodynamic optimization of the structure’s hull form.
  4. Participate and function qualitatively and quantitatively at a superior knowledge level in the design team of a floating offshore structure.
Mode of DeliveryFace-to-face
PrerequisitesNONECo-requisitesNONE
Recommended optional program componentsNONE
Course Contents Module A - Review of floating structures concepts
 - Semi-submersibles.
 - TLP’s.
 - Spar buoys.
 - Articulated Towers.
Module B - Dynamic response analysis of floating structures in waves
 - Rigid-body equations with single and multiple degrees of freedom.
 - Heave motion of cylindrical buoys.
Module C -  Analysis of semi-submersibles
 - Method of hydrodynamic synthesis.
 - Exciting wave forces.
 - Motion response in heave.
Module D -  Analysis of tensioned buoyant platforms
 - Wave loads on a TLP platform.
 - Motion response analysis in heave and surge of a TLP platform.
 - Elements of tether dynamics and coupled motion analysis.
 - Kinematic instabilities.
Module E -  Analysis of articulated towers
 - Wave loads.
 - Pitch motion response analysis.
 - Analysis of floating multi-body interconnected systems.
Module F - Synthesis and Case Applications
 - Case study – Project: Analysis of the hydrodynamic behavior of a semi-submersible and / or a spar buoy using special software.
Recommended and/or required reading:
Textbooks
  • N. D. P. Barltrop, Floating Structures, a Guide for Design and Analysis, 1998, ISBN: 1-870553-357
  • M. H. Patel, J. A. Witz: “Compliant offshore structures”, Bentham Press, London, 1991, ISBN 0-7506-1070-0
  • M. H. Patel: “Dynamics of Offshore Structures”, Bentham Press, London, 1989, ISBN 0-408-01074-6.
  • J. A. Witz, D.T. Brown: “Offshore Vessels Design Manual”, Bentham Press, London, 1999, Offshore Technology Series, ISBN-1-874612-18-8.
References
  • Mavrakos, S.A.: “SEMISUB User’s manual”, Laboratory for Floating Structures and Mooring Systems, National Technical University of Athens, 1990.
  • Mavrakos, S.A.: “DIFFRAC-R User’s manual”, Laboratory for Floating Structures and Mooring Systems, National Technical University of Athens, 1988.
  • J.P. Hooft: “Advanced Dynamics of Marine Structures”, J, Wiley, New York, 1982, A While Series, Volume in Ocean Engineering, Editor: Michael E. McCormick, ISBN-9780471030003.
  • M.E. McCormick: “Ocean Engineering Wave Mechanics”, Wiley, New York, 1973, ISBN-0471581771.
  • R. Bhattachatyya: “Dynamics of Marine Vehicles”, Wiley, New York, ISBN-0471072060.
Planned learning activities and teaching methods The taught part of course is delivered to the students by means of lectures, conducted with the help of computer presentations. Lecture notes and presentations will be available through the web for students to use in combination with the textbooks.
Lectures will be supplemented with a case – study project that will be carried out using the computer software SEMISUB and DIFFRAC-R, suitable to analyse the hydrodynamic behaviour of semisubmersibles, spar buoys, etc. Moreover, lectures will be supplemented with homework assignments to develop computational skills on the various modules of the course. 

Assessment methods and criteria
Readings10%
Assignments15%
Project25%
Final Exam50%
Language of instructionEnglish
Work placement(s)NO

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