Naval Architecture II

At the end of this course, the students should be able to: 1. calculate and plot the hydrostatic parameters, form coefficients and stability curves; 2. explain the provisions of SOLAS convention in ship design and kitting; 3. calculate change of trim, draught due to loading, density change and flooding; 4. determine the factors of compartmentalization and loss of stability due to grounding; 5. calculate ship strength, deflections, ships and loading; and 6. analyse ship lines drawings, damaged stability and plotting of floodable length curves.

Ship body line design and calculation: ship’s body plan drawing, Bonjean diagram and hydrostatic curves calculations and plotting. Ship stability: calculation and plotting of cross curves of stability by conventional and computer methods. Ship subdivision and damaged stability: calculation and plotting of floodable length curves. SOLAS convention. Longitudinal stability and trim: longitudinal BM, moment to change trim by one cm. Change of L.C.B. with change of trim. Change of trim due to addition, removal or shift of weights. Change of draught due to density and flooding. Flooding calculations and floodable length curves. Factors of compartmentalisation. Loss of stability due to grounding. Docking stability. Pressure on chocks. Strength of ships: loading diagram (buoyancy and gravity loads); shearing force and bending moment diagrams. Determination of B.M., longitudinal strength, moment of inertia, section modulus and deflection of ship. Balancing ship on wave.