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JNTU 2007-2008 III YEAR I SEM. B. TECH. AME - DYNAMICS OF MACHINERY
Posted Date: 09 Dec 2007 Resource Type: Articles/Knowledge Sharing Category: Syllabus
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Posted By: Sri Member Level: Gold
Rating:  Points: 1
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2007-08
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY
HYDERABAD
III Year B.Tech. AME I Semester T P C
4+1* 0 4
DYNAMICS OF MACHINERY
UNIT – I
PRECESSION : Gyroscopes, effect of precession motion on the stability of moving vehicles such as
motor car, motor cycle, aero planes and ships. Static and dynamic force analysis of planar
mechanisms.
UNIT – II
FRICTION : Inclined plane, friction of screw and nuts, pivot and collar, uniform pressure, uniform wear,
friction circle and friction axis : lubricated surfaces, boundary friction, film lubrication.
UNIT –III
Clutches: Friction clutches- Single Disc or plate clutch, Multiple Disc Clutch, Cone Clutch, Centrifugal
Clutch.
BRAKES AND DYNAMOMETERS : Simple block brakes, internal expanding brake, band brake of
vehicle. Dynamometers – absorption and transmission types. General description and methods of
operations.
UNIT – IV
TURNING MOMENT DIAGRAM AND FLY WHEELS : Turning moment – Inertia Torque connecting
rod angular velocity and acceleration, crank effort and torque diagrams – Fluctuation of energy – Fly wheels
and their design.
UNIT-V
GOVERNERS : Watt, Porter and Proell governors. Spring loaded governors – Hartnell and hartung with
auxiliary springs. Sensitiveness, isochronism and hunting.
UNIT – VI
BALANCING : Balancing of rotating masses Single and multiple – single and different planes.
UNIT –VII
Balancing of Reciprocating Masses: Primary, Secondary, and higher balancing of reciprocating masses.
Analytical and graphical methods. Unbalanced forces and couples – examination of “V” multi cylinder in
line and radial engines for primary and secondary balancing, locomotive balancing – Hammer blow,
Swaying couple, variation of tractive efforts.
UNIT – VIII
VIBRATION : Free Vibration of mass attached to vertical spring – oscillation of pendulums, centers of
oscillation and suspension. Transverse loads, vibrations of beams with concentrated and distributed
loads. Dunkerly’s methods, Raleigh’s method. Whirling of shafts, critical speeds, torsional vibrations, two
and three rotor systems. Simple problems on forced damped vibration Vibration Isolation & Transmissibility
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