Postgraduate

Modules

Modules

MAR8072 : Fundamentals of Naval Architecture

Semesters
Semester 1 Credit Value: 20
ECTS Credits: 10.0

Aims

• The general field of marine technology;
• Naval architectural principles and concepts;
• Metacentric theory and ship stability;
• The concepts of initial and static stability;
• The presentation of stability information;
• The evaluation of stability;
• Develop an understanding of the implications of ship stability in design and operation.
• Introduce the concepts of dynamic stability in terms of case studies including relevant regulations.
• Introduce the fundamental concepts of seakeeping including motion of a floating body subject to regular and irregular waves.
• Introduce the fundamental concepts of added mass and fluid damping and consider method of obtain the necessary terms using experimental and empirical methods.
• Consider motion response including likely displaced position, velocity and/or accelerations, in terms of probability formula.
• To deliver knowledge and skills to undertake finite element analysis for frame and plated structures.
• Physical phenomena, basic fluid mechanics and relevant theory of resistance and propulsion.
• Introduction to the numerical and experimental techniques used to estimate hull resistance.

Outline Of Syllabus

Archimedes principles; establishing equilibrium; basic naval architectural terms and concepts; basic hydrostatic quantities; calculation of waterplane area, LCF, transverse and longitudinal second moment; calculation of displaced volume, KB and LCB; Metacentric theory and stability; calculation of metacentric radius; calculation of metacentric height and righting level; calculation of KG; influence of adding or removing mass. Ship stability; hydrostatic particulars, tabular and graphical presentation; calculation of centres of gravity; shift of centre of gravity due to adding, moving, or removing a mass; special cases; a suspended load, tanks and free surface effect; flooding calculations; added mass and lost buoyancy methods; longitudinal stability and trim; draught analysis; hogging and sagging, the layer correction; the inclining experiment; introduction to static stability, the Wall Sided formula, cross curves of stability, curves of static stability; stability evaluation; IMO criteria, the Stability Booklet. Relationship of principle parameters to displacement and stability; Static stability including the presentation of heeling lever arms; energy methods and dynamic stability;
standard stability cases: the loll ship, wind heeling, crane ships.

Introduction to the study of ship motions in waves including: the 6 degrees-of-freedom systems; description of regular waves; derivation of the equations of motion. Introduction to motion of floating bodies in regular waves including the concepts of added mass, fluid damping, restoring forces and wave excitation forces. Introduction to irregular waves and ocean wave statistic. Introduction to methods used for finding the necessary terms including strip theory and seakeeping experiments. Development of the translation motion (heave) predictions and introduction to rotation motions including pitching and rolling motion. Introduction to various types of seakeeping event and to the probability of an even occurring, including: the normal probability density function; significant amplitudes; joint probabilities.

Introduction to the fundamentals of structural response analysis; ship frame analysis and grillage analysis; structural finite element analysis. Equivalent nodal loads; beam-bracket compatibility and stiffener-plate compatibility; sub-structure technique.

Modelling Ship Flows; Ship Resistance by ITTC Methods; Ship resistance by Froude's approach; Ship resistance from Existing experimental Data.

Teaching Methods

Teaching Activities
Category Activity Number Length Student Hours Comment
Scheduled Learning And Teaching ActivitiesLecture301:0030:00N/A
Guided Independent StudyAssessment preparation and completion125:0025:00Examination revision
Guided Independent StudyAssessment preparation and completion13:003:00Examination
Guided Independent StudyAssessment preparation and completion154:0054:00Studying distance learning material
Guided Independent StudyDirected research and reading154:0054:00General reading and writing up lecture notes
Guided Independent StudyDirected research and reading124:0024:00Distribution of distance learning material
Scheduled Learning And Teaching ActivitiesPractical32:006:00Finite element computer class
Scheduled Learning And Teaching ActivitiesDrop-in/surgery41:004:00Drop-in clinic for distance learning section
Total200:00
Teaching Rationale And Relationship

Lecture notes and pre-reading materials given out on BlackBoard together with recap content will familiarise students with the basic concepts of naval issues. Lectures will formalise learning related to the fundamental subject of naval architecture and specifically ship stability and motion in waves together with ship structures.

Lectures are used to communicate the fundamentals of ship motions in waves (IKO1-13).
Seminars are used for in-depth examination of some key issues (ISO1-14), with formative assessment used for examination of key issues (ISO7-8).

The Graduate Skills Framework entries indicated as 'A' are also assessed in this way.

Assessment Methods

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

Exams
Description Length Semester When Set Percentage Comment
Written Examination1801A80N/A
Other Assessment
Description Semester When Set Percentage Comment
Written exercise1M20Finite Element Tutorial
Assessment Rationale And Relationship

Knowledge of the concepts, processes and algorithms and the associated regulatory framework associated with ships stability is assessed in the examination (IKO1-IKO17).

Reading Lists

Timetable