mechanism. uNtT - l!! straight'Line Motion Mechanisms: Exact and approximate copied and ยท generated types - peauceilier
74
MECHANICAL ENGINEERING 2013.14
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD llYear B.Tech. ME-l! Sem L T/P/D C
4
J-t-
4
(A40309) KTNEMATTCS OF MACHINERY UNIT
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I
Mechanisms: Erements or Links fluid link
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- crassification - Rigid Link, frexibre and Types of kinematics pairs -Types of constiined motion-kinetic
chain-. Mechanism-machine-Structure - inversions of mechanism
inversions
UNIT
-
II
Kinematics:
or ld .in
of quadric cycle chain, single and double slider crank chains, Mechanical Advantage-Grubler's Criterion. Velocity and accereration
Determination of verocity and accereration of relative velocity method.
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-
Motion of link in machine
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Graphicar method -Apprication
Plane Motion of Body: rnstantaneous center of rotationcentrodes and axodes - Three centers in rine theorem Graphicar determinaiiln
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ot instantaneous center, determination of angurar veiocity of points and rinks by instantaneous cente method.
Kliens construction
- corioris
component of acceleration
accereration
- determination of corioris
mechanism.
uNtT
-
l!!
uW
Analysis of Mechanisms: Anarysis of srider crank chain for dispracementvelocity and accereration of srider Accereration diagram
-
roi
"-gir",
straight'Line Motion Mechanisms: Exact and approximate copied and peauceilier generated
nt
types - Hart - scott Russer -'Grasshopp"i Tchebicheffs and Robert Mechanism _ pantographs
steering Gears: conditions for correct steering
Ackerman's steering gear.
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Aj
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Davis steering gear,
Hooke.'s Joint: singre and doubre Hooke's joint -verocity ratio problems.
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-w"tt
-
apprication
UNIT- IV CAMS: Definitions of cam and folowers
- their uses - Types of folowers and cams - Terminorogy Types of forower motion Uniform verocitv, iimpre harmonic motion and uniform accereration and retardation. tvtaximum'vetocity and maximum accereration during outward and return strokes in the above 3 cases.
Analysis of Motion of Folrowers: Tangent cam with Rofler foilower - circurar arc cam with straight, concave and convex flanks.
MECHANICAL ENGINEERING 2013-1 4
UNIT _ V
- tyrys ..law of gearing' of motion - velocity of for transmission conOition for constant velocity ratio Higher Pair: Friction wheels and toothed gears sliding.
ld .in
worm geanng.
- Types - SimPle - compo n. Methods of finding train Selection of gear box - D automobile.
TEXT BOOKS:
2.
Theory of Machines and Mechanisms/JosEPH E. SHIGLEY/Oxford/ 3d Edition/lntemational Edition' Theory of Machines / Thomas Bevan/Pearson/3'd Edition'
Kinematics & Dynamics Of machinery/NortonffMH' Theory of Machines / Sadhu Singh / Pearson' / New Mechanism and Machine Theory / JS Rao and RV Duggipati Age.
