- •International Maritime Organization contents
- •Introduction 1
- •11 18 39
- •119 123 140
- •185 195
- •3.1 Control trim, stability and stress
- •3.1.1.1 Shipbuilding materials
- •3.1.1.2 Welding
- •3.1.1.3 Bulkheads
- •3.1.1 Fundamental priinciples of ship constuction, trim and stability
- •Annex 3 - Example of a Lesson Plan for Annex 2
- •Training Area: 3.1.1 Fundamental principles of ship construction, trim and stability
3.1.1.1 Shipbuilding materials
3.1.1.2 Welding
3.1.1.3 Bulkheads
Following each numbered area of Required performance there is a list of activities that the trainee should complete and which collectively specify the standard of competence that the trainee must meet. These are for the guidance of teachers and instructors in designing lessons, lectures, tests and exercises for use in the teaching process. For example, under the topic 3.1.1.1, to meet the Required performance, the trainee should be able to:
state that steels are alloys of iron, with properties dependent upon the type and amounts of alloying materials used
state that the specifications of shipbuilding steels are laid down by classification societies
state that shipbuilding steel is tested and graded by classification society surveyors who stamp it with approval marks
and so on.
IMO references (Rx) are listed-in the column to the right-hand side. Teaching aids (Ax), videos (Vx) and textbooks (Tx) relevant to the training outcome and required performances are placed immediately following the TRAINING OUTCOME title.
It is not intended that lessons are organized to follow the sequence of Required performances listed in the tables. The syllabus tables are organized to match with the competence in the STCW Code Table A-ll/2. Lessons and teaching should follow college practices- It is not necessary, for example, for shipbuilding materials to be studied before stability. What is necessary is that all the material is covered and that teaching is effective to allow trainees to meet the standard of the Required performance.
FUNCTION 3: CONTROLLING THE OPERATION OF THE SHIP AND
CARE FOR PERSONS ON BOARD AT THE MANAGEMENT LEVEL
COMPETENCE 3.1 Control trim, stability and stress IMO reference
3.1.1 Fundamental priinciples of ship constuction, trim and stability
Textbooks: T11, T12, T35, T58, T69
Teaching aids: A1, A4, V5, V6, V7
Required performance:
1.1 Shipbuilding materials(3 hours) R1
states that steels are alloys of iron, with properties dependent upon the type and amounts of alloying materials used
states that the specifications of shipbuilding steels are laid down by classification societies
states that shipbuilding steel is tested and graded by classification society surveyors, who stamp it with approval marks
explains that mild steel, graded A to E, is used for most parts of the ship
states why higher tensile steel may be used in areas of high stress, such as the sheer strake
explains that the use of higher tensile steel in place of mild steel results in a saving of weight for the same strength
explains what is meant by:
- tensile strength
- ductility
- hardness
– toughness
defines strain as extension divided by original length
sketches a stress-strain curve for mild steel explains:
- yield point
- ultimate tensile stress
- modulus of elasticity
explains that toughness is related to the tendency to brittle fracture
explains that stress fracture may be initiated by a small crack or notch in a plate
states that cold conditions increase the chances of brittle fracture
states why mild steel is unsuitable for the very low temperatures involved in the containment of liquefied gases
lists examples where castings or forgings are used in ship construction
explains the advantages of the use of aluminium alloys in the construction of superstructures
states that aluminium alloys are tested and graded by classification society surveyors
explains how strength is preserved in aluminium superstructures in the event of fire
describes the special precautions against corrosion that are needed where
aluminium alloy is connected to steelwork