Ship Structures And Strength

At the end of this course, the students should be able to: 1. evaluate the loads, stresses and the strengths of structural members in ships and offshore facilities; 2. design and analyse the type of framing, shell plating, pillars and stiffeners for the different parts of a ship/offshore structure; 3. determine longitudinal bending moment and shear forces in still water, waves and on suspension; and 4. classify and calculate transverse strength, thermal stress and fatigue due to hull vibrations.

Loads acting on ship structure. Stresses in ship’s structure: hogging, sagging, racking, pounding, panting, etc., and strength members to counteract the same. Types of ship structures. Framing systems. Classification rules. Function of ship structural components. Double bottom. Single bottom. Shell plating. Frames. Decks. Bulkheads. Pillars. Girders. Hatch coamings. Machinery casings. Superstructures. Bossing and struts. Bilge Keels and fenders. Determination of longitudinal bending moment and shear forces in still water. Wave bending moment. Total bending moment. Hogging and sagging. Dynamic forces. Local stresses. Torsion. Function of ship structure. Girder section moduli and stress. Deflection of ships. Transversal strength. Thermal effects. Strength of structure components. Local strength. Fatigue. Local vibrations. Reducing of hull vibration.