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Units, Definitions, quality of materials-forces acting on a machine, General problem of design- Effect of temperature-steady, sudden and impulsive loads-fatigue-wohler’s law - factors of safety, Resilience, sudden and impulsive loads-tables of strength etc -tension-compression-shearing-modulus of rigidity, Bending-moments of inertia-modulus of section-table of I, Z, etc-Tables and curves on shearing face, bending moments, deflection, Directions for practical work-Practical problem I -The knuckle joint, Bolts, Nuts, screws, Forms of screw threads. Applications of bolts, studs, nuts, etc. Stresses in bolts and Screws. Friction and efficiency of Screws. Number, size and pitch of cylinder cover studs, Practical Problem The screw jack, Compound stresses: bending combined with tension or compression. combined stresses. Struts and columns, Euler’s formula. Empirical formulae Rankine’s or gordon’s straight line formula, Cotters: Design of cottered joint-Gib and cotter-Taper of the cotter, The theory of the connecting rod, Practical problem III Strapped connecting rod, Practical problem IV The Naval type of connecting rod, Shafts and journals: Torsion. Strength of shafts. Twist of shafts. size ofshaft for given horse-power. Strenght of journals and pins. Table of bearing pressures combined turning and bending moments couplings and bolts, Friction and lubrication of bearings; General effect of friction. Dry and lubricated surfaces. Nominal or projected area of bearing work of friction value of u. Pressure in bearing forced lubrication. Anti-friction metal Thrust bearing, Notes on the design of crank shaft, cross-head pins, etc Practical problem V, Design of cylinders, Valve chests pistons, rods, pipes etc Bureau of steam engineering check for strenth of steel pistons, Design of cylindrical boilers, Screw propeller
