Course syllabus for Wave loads and seakeeping

Course syllabus adopted 2022-02-15 by Head of Programme (or corresponding).

Overview

  • Swedish nameVåglaster och sjöegenskaper
  • CodeSJO747
  • Credits7.5 Credits
  • OwnerMPMOB
  • Education cycleSecond-cycle
  • Main field of studyMechanical Engineering, Shipping and Marine Technology
  • DepartmentMECHANICS AND MARITIME SCIENCES
  • GradingTH - Pass with distinction (5), Pass with credit (4), Pass (3), Fail

Course round 1

  • Teaching language English
  • Application code 89119
  • Block schedule
  • Open for exchange studentsYes

Credit distribution

0122 Examination, part A 5.5 c
Grading: TH		 5.5 c
  • 11 Okt 2024 am J
0222 Written and oral assignments, part B 2 c
Grading: UG		 2 c

In programmes

Examiner

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Eligibility

General entry requirements for Master's level (second cycle)
Applicants enrolled in a programme at Chalmers where the course is included in the study programme are exempted from fulfilling the requirements above.

Specific entry requirements

English 6 (or by other approved means with the equivalent proficiency level)
Applicants enrolled in a programme at Chalmers where the course is included in the study programme are exempted from fulfilling the requirements above.

Course specific prerequisites

Mathematics (including probability, statistics and numerical analysis), mechanics and strength of materials and engineering materials.

Aim

The course gives students knowledge and tools about how to design marine structures using limit state based approaches by means of probability and risk analysis. A variety of simplistic and advanced methodologies are compared with objectives to demonstrate their advantages and limitations. Realistic and typical examples for marine structures are used throughout the course in order to introduce real examples to students with their challenges of complexity which require solid and well-motivated assumptions.

Learning outcomes (after completion of the course the student should be able to)

- Describe regular and irregular waves in the frequency domain - Handle irregular waves from a statistical and probabilistic point of view - Make simple estimates of wave induced loads on floating structures - Make simple estimates of motions in waves - Show knowledge about derived responses in waves - Estimate the probability of the derived responses - Show knowledge about extreme motion response in waves - Use a modern computer software for ship motion analysis - Show knowledge on methods for ship manoeuvring analysis - Show knowledge about how to assess the course stability of a ship - Show knowledge how to analyze common ship manoeuvres - Show knowledge about background theory and simplifications for manoeuvring - Show knowledge of steering devices - Show knowledge about basic design principles for seakeeping and manoeuvring

Content

- Waves, wave spectra, regular and irregular waves, wave statistics, probability - Forces due to wave loads . Equations of motion for a floating structure - The seakeeping problem - Equations and approximations for seakeeping - Response due to wave loads in heave, pitch and roll for regular and irregular waves - Frequency domain analysis - Derived responses, velocities, accelerations, propeller emergence - Slamming - Parametric roll - The manoeuvring problem - Equations and approximations for manoeuvring - Course stability - Manoeuvring in deep and restricted water - Propeller, rudders and thrusters for manoeuvring

Organisation

The learning is accomplished by learning sessions where the contents of the course are presented together with examples, tutorials and the theoretical background. A computer software for ship motion analysis is introduced during the learning sessions. The software is used for an assignment on ship motions in waves. The learning is supported by visits to a wave laboratory and a ship manoeuvring simulator.

Literature

Carl-Erik Janson, Waves, Motions and Manoeuvring, Lecture notes based on: - Lars Bergdahl: Wave-induced loads and ship motions, Water Environment Technology, Chalmers, 2010. (Lecture notes) - Gilbert Dyne: Ship manoeuvring, Naval Architecture, Chalmers 2004. (Lecture notes) - A.R.J.M. Lloyd, SEAKEEPING Ship Behaviour in Rough Weather 1989 - Principles of Naval Architecture Vol III 1989 SNAME, Edward V. Lewis Editor. The lecture notes are distributed at the lectures.

Martin Schreuder: Printed lecture presentations distributed at lectures.

Examination including compulsory elements

Part A
Written examination

Part B
SSPA visit (attendance and report)
Bridge simulator assignment (attendance and report)
OCTOPUS ship motions assignment (report)
Inclining experiment (attendance and report)

The final grade is determined based on the grade of the written examination.

The course examiner may assess individual students in other ways than what is stated above if there are special reasons for doing so, for example if a student has a decision from Chalmers on educational support due to disability.