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MV1402 NAVAL ARCHITECTURE – II
UNIT I
Resistance: Types of resistance, frictional, residuary and total resistance, air, appendage, wave making, eddy and form resistances, model testing, propeller tests in open water, admiralty coefficient, fuel coefficient and consumption, sea trials – Problems.
UNIT II
Propellers: Types of propellers, apparent and real slip, wake, thrust, relation between powers, relation between mean pressure and speed, measurement of pitch, cavitation, built and solid propellers, interaction between the ship and propeller, hull efficiency, overall propulsive efficiency – Problems.
UNIT III
Rudder theory: Types of rudders, model experiments and turning trials, area and shape of rudder, position of rudder, stern rudders vs bow rudders, forces on rudder, torque on stock, angle of heel due to force on rudder, angle of heel when turning – Problems.
UNIT IV
Motion of ship on waves: Theory of waves, trochoidal waves, relationship between line of orbit centres and the undisturbed surface, sinusoidal wave, Irregular wave pattern, wave spectra, wave amplitudes, rolling in unresisting media, rolling in resisting media, practical aspects of rolling, Anti rolling devices, forces caused by rolling, pitching, heaving and yawing.
UNIT V
Ship Design: Design requirements, influence of nature of cargo on ship type, determination of principal dimensions, calculation of steel and outfit masses, the ship form, stability and trim, determination of scantlings of the structure, general arrangement, cost, design optimization.
TEXT BOOKS
1. K.J. Rawson and E.C. Tupper, “Basic Ship Theory” (Vol.II), 5th Edition, Butterworth Heinemann, London, 2001.
2. EricTupper, “Introduction to Naval Architecture”, 3rd Edition, Butter worth – Heinemann, London, 2001.
REFERENCES
1. Vikram Gokhale, N.Nanda, “Naval Architecture and Ship construction”, 1st Edition, Engee Enterprises, Mumbai, 2002.
2. Rawson, K.J.Tupper E.C, “Basic Ship theory”, 5th Edition, Butter worth – Heinemann, London, 2001.
3. Stokoe, E.A., “Reeds Naval Architecture for Marine Engineers”, 2nd Edition, Thomas Reed Publications, London, 1982.
4. G.N.Hatch, “Creative Naval Architecture”, 1st Edition, Thomas Reed Publications, London, 1971.
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