STRENGTH OF MATERIALS AND THEORY OF MACHINES
RESOURCES AVAILABLE FOR S.M.T.M :
- SYLLABUS
- TEXT BOOKS
- PREVIOUS PAPER
- VIDEOS
SYLLABUS :
Simple stresses and strains – tensile, compressive and shear stresses. Elastic limit, Hook’s law, stress-strain relation, poission’s ratio, Moduli-relation among them. Stresses in bars of varying section, composite sections, temperature stresses. Change in modulus if all the lateral strains are prevented.
Shear Force Bending Moments– Definitions, cantilever- S.F and B.M diagrams, simply supported beams- pointed loads, uniformly distributed loads, S.F and B.M diagrams. Over hanging beams, point of contraflexure.
Simple Mechanisms: Link and element, lower and higher pairs, kinematic pairs, types, kinematic chain mechanisms with turning and sliding pairs, criteria, degrees of freedom, joint, Grubler’s criteria, inversion of single slider and double slider crank chains.
Mechanisms with lower pairs- pantograph, Exact straight line mechanisms: Scott-Russel mechanism, Peaucellier mechanism, Harts mechanism, , Approximate straight line mechanisms- Modified Scott Russel mechanism, Watt mechanism , Tchebicheff’s mechanism, Roberts mechanism, Grasshopper mechanism.
Friction and bearings- Friction definition, types, laws of Friction, limiting friction, limiting angle of Friction, angle of repose, Equilibrium of a body on a rough horizontal, Friction of a body on a rough inclined plane, friction between screw and nut, mechanical efficiency-friction in journal bearings, friction circle.
Text books:
- J.A.Taraporebala- Strength of materials
- S.B.Junnarkar- Machines of structures.
- Toft.L. and Kersy ,A.T.J- Theory of machines
DOWNLOADS :
TEXT BOOKS :
PREVIOUS PAPERS :
VIDEOS :
BEAM ENGINE MECHANISM :
COUPLING ROD OF LOCOMOTIVE :
SLIDER CRANK CHAIN :
PENDULUM PUMP MECHANISM :
OSCILLATING CYLINDER MECHANISM :
ROTARY ENGINE :
QUICK RETURN MECHANISM:
WHITWORTH QUICK RETURN MECHANISM:
ELLIPTICAL TRAMMEL:
SCOTCH YOKE:
OLDHAM COUPLING:
PANTOGRAPH :
SCOTT RUSSEL MECHANISM :
PEAUCELLIER MECHANISM :
HART MECHANISM :
GRASSHOPPER MECHANISM :
ROBERTS STRAIGHT LINE MECHANISM :