13. Marine Engineering - Strength of Materials (Management Level)
Updated 11 August 2023
Marine Engineering - STCW III/2 CoC | |||
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Competency/ Module: Marine Engineering: Strength of Materials (Management Level) | |||
Knowledge, understanding and proficiency | Recommendation of working group regarding the outcome and objective. | Rationale | Action required |
Outcome1: Explain terminology as used in strength of materials and solve related problems. | Modernise | Modern and future materials and fuels may interact in different ways to those currently used and these interactions should be taught. | Include information on modern/ future materials including their interaction with future fuels. |
1.1 Direct stress and strain, shear stress and strain, modulus of elasticity “E”, factor of safety and proof stress | Contextualise | It is important to make sure Cadets clearly understand how the outcome relates to work at sea and it is essential to make sure that this context is given with reference to current and future seagoing technologies and practices. | Use of practical examples/ simulation/ loading computer software to show these theories in practice. |
1.2 Stresses in simple and stepped bars subjected to linear thermal strain | Keep | Relevant | None |
1.3 Temperature change on composite members | Keep | Relevant | None |
1.4 Differential thermal expansion and contraction | Keep | Relevant | None |
1.5 Compound bars subjected to both direct loading and temperature change | Keep | Relevant | None |
Outcome 2: Explain and solve problems relating to shear forces and bending moments on simply supported and cantilever beams | Contextualise | It is important to make sure Cadets clearly understand how the outcome relates to work at sea and it is essential to make sure that this context is given with reference to current and future seagoing technologies and practices. | Use of practical examples/ simulation/ loading computer software to show these theories in practice, where appropriate within this outcome. |
2.1 Support reactions for beams subjected to point or uniformly distributed loads | Keep | Relevant | None |
2.2 Shear force and bending moment diagrams for simply supported and cantilever beams | Keep | Relevant | None |
2.3 Point of contraflexure | Keep | Relevant | None |
2.4 Uniformly varying distributed loading | Keep | Relevant | None |
2.5 Bending Equation | Keep | Relevant | None |
2.6 Section modulus “Z” | Keep | Relevant | None |
Outcome 3: Explain and solve problems on the theory of torsion involving circular sections and close coiled helical springs | Contextualise | It is important to make sure Cadets clearly understand how the outcome relates to work at sea and it is essential to make sure that this context is given with reference to current and future seagoing technologies and practices. | Use of practical examples/ simulation/ loading computer software to show these theories in practice, where appropriate within this outcome. |
3.1 Assumptions for deriving the torsion theory | Keep | Relevant | None |
3.2 Torsion equation | Keep | Relevant | None |
3.3 Power transmitted by a rotating shaft | Keep | Relevant | None |
3.4 Torsional stiffness | Keep | Relevant | None |
3.5 Relationship between torque transmitted by a shaft and shear force induced in the coupling bolts | Keep | Relevant | None |
3.6 Formula for stress and deflection of a helical spring subjected to an axial load | Keep | Relevant | None |
3.7 Design of helical springs | Keep | Relevant | None |
Outcome 4: Explain and solve problems on elastic strain energy and stresses on oblique planes of stressed material | Contextualise | It is important to make sure Cadets clearly understand how the outcome relates to work at sea and it is essential to make sure that this context is given with reference to current and future seagoing technologies and practices. | Use of practical examples/ simulation/ loading computer software to show these theories in practice, where appropriate within this outcome. |
4.1 Strain energy and resilience | Keep | Relevant | None |
4.2 Expression for elastic strain energy | Keep | Relevant | None |
4.3 Impact Loading | Keep | Relevant | None |
4.4 Conversion of PE and KE into strain energy to determine maximum instantaneous stress deformation | Keep | Relevant | None |
4.5 Expression for strain energy of a helical spring | Keep | Relevant | None |
Proposal submitted by: | Any other outcomes for this competency, above and beyond STCW which would be needed due to use of modern technology and impact of future fuels onboard: | ||
Objective | Reason Why | Action required | |
Cadet Training & Modernisation Working Group | Include Human Element Factors throughout the syllabus | To provide seafarers with a contextualised understanding of the Human Element in the maritime industry, showing how they can put theory into practice in the work they carry out at sea. | Raise awareness throughout the Cadet’s training of the areas in which human element factors will have an impact. Recommendations on where this can be included have been noted throughout the entire syllabus. Not every template has Human Element Factor recommendations but please do add any you feel may have been missed. |
Cadet Training & Modernisation Working Group | Include Data Science skills throughout the syllabus | Data Science Skills (Comprehension, Analysis, Presentation, etc…) are already required within much of the syllabus. A further, specific focus on these skills needs to be taught where relevant. | A specific topic will need to be introduced to improve Cadets’ Data Science skills. Practical application of data science skills should be highlighted throughout the syllabus. Not every template has Data Science recommendations but please do add any you feel may have been missed. |
Cadet Training & Modernisation Working Group | Ensure all outcomes are contextualised to help Cadets understand what they are learning in relation to what they will experience at sea. | While some outcomes are intrinsically linked to work carried out at sea, some need to be contextualised to show how they apply to work on board. Where this is the case, it is important to make sure Cadets clearly understand how the outcome relates to work at sea and it is essential to make sure that this context is given with reference to current and future seagoing technologies and practices. | Where outcomes do not specifically cover a topic which relates to work carried out at sea, more must be done to contextualise the outcome and make it relevant to the maritime industry, giving specific shipping examples of how the outcome may be applied in a modern shipping context. Not every template has contextualisation recommendations but please do add any you feel may have been missed. |