Ship geometry

ID: 1427
Course type: vocational and applied
Course coordinator: Rudaković S. Stefan
Lecturers: Rudaković S. Stefan
Contact: Rudaković S. Stefan
Level of studies: B.Sc. (undergraduate) Academic Studies – Mechanical Engineering
ECTS: 6
Final exam type: oral
Department: Department of Naval Architecture

Lectures

  • Semester 4, position 4

Goal

The aim of the course is for students to master the fundamental knowledge of the ship's hull shape, its geometric characteristics and hydrostatics. In addition, students will get familiar with the basics of buoyancy of floating objects.

Outcome

1. The student will be able to use technical skills to interpret, utilize, and modify existing ship hull forms or independently establish new ones, and based on this, analyse and create the basic hydrostatic calculation of the ship; 2. The student will be able to select and apply appropriate computational and analytical techniques to solve problems of ship hydrostatics and buoyancy, considering the limitations of the applied techniques; 3. The student will be able to communicate effectively on complex engineering matters of the course subject with technical and non-technical audiences, evaluating the effectiveness of the methods used.

Theoretical teaching

Introductory lectures: Basic terms and elements of a ship, main dimensions, hull form coefficients, types of ships, units of measurement in shipbuilding. Lines plan: Coordinate system, display of the ship in three projections, requirements regarding the shape of the hull, CAD hull modeling, examples of lines plan of different types of vessels. Ship's hydrostatics: Basic geometric characteristics of cross-section and waterlines, concept of the curve of the sectional area, displacement volume and mass, center of gravity, center of buoyancy, center of flotation. Basics of ship buoyancy: Archimedes' law, conditions of flotation, buoyancy of fully immersed bodies, state of equilibrium, concept of metacenter, concept of metacenter height.

Practical teaching

Project I: Drawing of the lines plan using the traditional method. Project II: Hydrostatic calculations. Project III: CAD hull model. Practical calculations: Calculation of basic geometric characteristics of simple forms - surface of cross-section and waterlines, displacement volume and mass, surface centroid, centers of buoyancy and mass, area moment of inertia, initial metacenter height.

Attendance requirement

There are no special requirements for attendance.

Resources

[1] Rudaković, S., Handouts

Assigned hours

Total assigned hours: 75

Active teaching (theoretical)

New material: 30
Elaboration and examples (recapitulation): 0

Active teaching (practical)

Auditory exercises: 0
Laboratory exercises: 0
Calculation tasks: 5
Seminar paper: 0
Project: 25
Consultations: 0
Discussion/workshop: 0
Research study work: 0

Knowledge test

Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 0
Review and grading of the project: 11
Test: 2
Test: 0
Final exam: 2

Knowledge test (100 points total)

Activity during lectures: 0
Test/test: 15
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 0
Project: 55
Final exam: 30
Requirement for taking the exam (required number of points): 35

Literature

Letcher, J. S., The geometry of ships, The Society of Naval Architects and Marine Engineers, SNAME, Jersey City, NJ, USA, 2009.; Van Lammeren (ed.), W. P. A., Scheltema, H. R. F., Bakker, A. R., Buoyancy and stability of ships. Culemborg, Cologne: Technical Publications H. Stam, 1969.; Грубишић, И., Геометрија брода, дигитални уџбеник, https://www.fsb.unizg.hr/geometrija.broda, 2001.; Рибар, Б., Теорија брода, Машински факултет, Београд, 1987.; Biran, A., Ship Hydrostatics and Stability, Butterworth Heinemann, 2003.