Course details

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Offshore Structures

Teaching: Partially 2 (Partially in English - lessons held in Croatian, excercies, materials & exam in English)
ECTS: 2
Level: Graduate
Semester: Winter
Prerequisites:
Basics seakeeping theory
Load:
Lectures Exercises Laboratory exercises Project laboratory Physical education excercises Field exercises Seminar Design exercises Practicum
30 0 0 0 0 0 0 0
Course objectives:
Introduction to current offshore structures and the environment in which they operate: structures for the exploitation of hydrocarbons and structures for the exploitation of renewable energy sources. Presentation of mathematical and numerical approaches intended for mooring system response calculation. The application of these approaches with comparison to model tests results. Presentation of specific problems of different types of offshore structures through their comparison with similar problems in ship design. The application of the basic knowledge for the needs of project development in the field of offshore technology.
Student responsibilities:
Grading and evaluation of student work over the course of instruction and at a final exam:
Colloquium (or numerical exam) 40%, oral exam 30%, project 30%
Methods of monitoring quality that ensure acquisition of exit competences:
Testing through homework
Upon successful completion of the course, students will be able to (learning outcomes):
Define the state of the environment, i.e. wind, waves and sea currents. Express the basic physical principles of the environment on offshore structures. Apply the Morrison equation to determine the load on jacket structures. Calculated static response of the marine riser. Calculate the static response of the mooring line. Calculate the static response of the mooring system. Identify the specifics of the strength of the offshore structures. Formulate the principles of designing of offshore structures.
Lectures
1. Offshore structures for the exploitation of hydrocarbons.
2. Offshore structures for the exploitation of renewable energy.
3. Environmental loads on offshore structures: wind, waves and sea current.
4. Morrison"s equation in the analysis of jacket structures.
5. Mechanics of marine risers.
6. Mechanics of catenary mooring line.
7. Mechanics of elastic composite mooring line.
8. Model testing of the mooring line.
9. Model testing of the mooring system.
10. Fixed platforms.
11. Self-elevating platforms.
12. Semi-submersible platforms.
13. Comparisons of ship and offshore structure strength.
14. Specific strength problems of offshore structures.
15. Design of offshore structure.
Exercises
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Compulsory literature:
Subrata Chakrabarti: Handbook of Offshore Engineering (2-volume set), Elsevier ocean engineering book series, Elsevier, 2005

Committee V.4: Offshore renewable energy. 20th International Ship and Offshore Structures Congress (ISSC 2018). Liege - Belgium & Amsterdam - The Netherlands, 2018.

Committee V.4: Offshore renewable energy. 19th International Ship and Offshore Structures Congress (ISSC 2015). Cascais, Portgal, 2015.
Recommended literature:
Hadžić, N.; Ćatipović, I.; Tomić, M.; Vladimir, N.; Kozmar, H. Offshore wind turbines - Research and development. Pomorski zbornik. Special Issue (2018), 2; 59-70.

Rusu, E.; Venugopal, V.: Offshore Renewable Energy: Ocean Waves, Tides and Offshore Wind. ISBN 978-3-03897-592-2 (Pbk); ISBN 978-3-03897-593-9 (PDF).

Čorić, V.; Mravak. Z.; Parunov, J.: Upgrading of Old Generation Offshore Platforms for New Requirements; Zavarivanje u pomorstvu; Haludovo 1998

Čorić, V.; Mravak, Z.; Werner, A.: Anchoring of Floating Structures in Deep Sea; 9th International IMAM Congress, Naples 2000

Faculty of Mechanical Engineering
and Naval Architecture
Ivana Lučića 5
10002 Zagreb, p.p. 102
Croatia
MB 3276546
OIB 22910368449
PIC 996827485
IBAN HR4723600001101346933
tel: +385 1 6168 222
fax: +385 1 6156 940
University of Zagreb
Ministry of Science and Education