Module Catalogue

MAR2121 : Marine Structures I

  • Offered for Year: 2017/18
  • Module Leader(s): Professor Bob Dow
  • Lecturer: Dr Burak Cerik
  • Owning School: Engineering
  • Teaching Location: Singapore
Semesters
Semester 1 Credit Value: 10
Semester 2 Credit Value: 10
ECTS Credits: 10.0

Aims

To develop knowledge and understanding of:
A1. The global response of ship as a beam in still water and poised on a wave
A2. The resulting forces, moments and stresses
A3. The calculation and development of midship section
A4. The statistical nature of hull bending in waves
A5. Response of slender elements in compression
A6. Ship structural components and materials in structural design and analysis.
A7. To increase awareness of structural and related principles and concepts
A8. To develop the knowledge and skills to undertake ship structural design and analysis

The module provides an awareness of structural principles and their application to marine related problems. Topics include: static equilibrium; beams, trusses; forces on a ship; longitudinal ship strength in still water and wave, shear force, bending moment and related stresses; statistical approach to wave bending; shear deflection, stress and lag; materials of construction; elastic strut buckling; connections.

Outline Of Syllabus

Introduction to forces acting on a ship at sea; a quasi static approaches to longitudinal strength; determining equilibrium; calculation of weight, buoyancy, shear force and bending moment; determining design bending moment and shear force; classification society requirements; calculation of bending stress distribution; calculation of shear tress distribution; the influence of shear strain and stress on longitudinal stress (shear lag); calculation of hull deflection; introduction of shear strain and stress on longitudinal stress (shear lag); calculation of hull deflection; introduction to transverse and local strength; buckling of struts and fundamental assumptions; Euler and Rankine-Gordon methods; strain gauge recording of stress of a ship at sea; statistical interpretation of the stress record; prediction probability of stress level exceedance; different steel types used in the marine industry; the evaluation of trusses by the method of nodes and method of sections.

Structural configurations; elastic beam theory; indeterminate beams; stiffened panels; transverse and local strength; continuous beams; composite materials; composite construction; 2-D stress and strain; principle stresses/strain; strain gauge rosettes; transverse and local strength; temperature effects; finite elements; introduction to ship vibration; propeller hull interaction forces; machinery excitation; estimation of natural frequencies and amplitudes of hull vibration; design considerations.

Teaching Methods

Teaching Activities
Category Activity Number Length Student Hours Comment
Guided Independent StudyAssessment preparation and completion120:0020:00Coursework
Guided Independent StudyAssessment preparation and completion13:003:00Examination
Guided Independent StudyAssessment preparation and completion124:0024:00Examination revision
Scheduled Learning And Teaching ActivitiesLecture481:0048:00N/A
Scheduled Learning And Teaching ActivitiesPractical121:3018:00Coursework preparation sessions
Scheduled Learning And Teaching ActivitiesSmall group teaching61:006:00Tutorials
Guided Independent StudyIndependent study181:0081:00General revision, general reading and consolidating of lecture notes
Total200:00
Teaching Rationale And Relationship

The use of lectures as the principle teaching method is an effective means to provide students with the acquisition of the sizeable knowledge and base facilitate the understanding of the module material (IKO1-20)

Practical sessions provide the forum for the knowledge and understanding developed through formal lectures to be integrated into a coursework exercise to load an idealised bulk carrier with a specified amount of cargo, evaluate the resulting loads, forces and moments and suggest midship section scantlings (ISO1-2)
The exercise also provides a platform to exercise team - working and management, planning, problem solving and numeracy skills (ISO1-2)

1. Lectures are designed to convert the underlying concepts and knowledge of marine structural design and analysis (IKO1-IKO20) and the professional skills required to solve structural problems (ISO1-ISO13).
2. Tutorials support the students' self study in reading around the lecture material and learning to solve marine structural problems posed by the tutorial questions (ISO1-ISO13).
3. Practical sessions are a mix of supervised and self-organising activities in which the students develop intellectual and problem-solving skills to design and analyse marine structures (ISO12-ISO13).
4. Independent study gives time for students to read recommended references (IKO1-IKO20) and practise their professional skills (ISO1-ISO13).

Assessment Methods

The format of resits will be determined by the Board of Examiners

Exams
Description Length Semester When Set Percentage Comment
Written Examination1202A40N/A
Written Examination1201A40N/A
Exam Pairings
Module Code Module Title Semester Comment
MAR2021Marine Structures I2N/A
Other Assessment
Description Semester When Set Percentage Comment
Report1M20Coursework taking a maximum of 20 hours
Assessment Rationale And Relationship

The written examination will assess the breadth of knowledge, understanding and ability to perform related ship strength calculations. This medium also allows students to demonstrate intended learning outcomes across a wide range of topics from the syllabus.
The coursework provides students with the opportunity to demonstrate written communication, teamwork, planning, organisation, initiative, problem solving and acquisition of learned skills.

Reading Lists

Timetable