KINEMATICS OF MACHINERY

UNIT-I
Mechanisms : Elements or Links , Classification, Rigid Link, flexible and fluid link, Types of kinematic pairs , sliding, turning, rolling, screw and spherical pairs lower and higher pairs, closed and open pairs, constrained motion, completely, partially or successfully constrained and incompletely constrained .
Machines : Mechanism and machines, classification of machines, kinematic chain , inversion of mechanism, inversion of mechanism , inversions of quadric cycle, chain , single and double slider crank chains.

UNIT-II
Straight Line Motion Mechanisms: Exact and approximate copiers and generated types Peaucellier, Hart and Scott Russul Grasshopper Watt T. Chebicheff and Robert Mechanisms and straight line motion, Pantograph.
Steering Mechanisms: Conditions for correct steering Davis Steering gear, Ackermans steering gear velocity ratio.
Hookeâ??s Joint: Single and double Hookes joint Universial coupling application problems.

UNIT-III
Kinematics: Velocity and acceleration - Motion of link in machine - Determination of Velocity and acceleration diagrams - Graphical method - Application of relative velocity method four bar chain.
Analysis of Mechanisms: Analysis of slider crank chain for displacement , velocity and acceleration of slider - Acceleration diagram for a given mechanism, Kleins construction, Coriolis acceleration, determination of Coriolis component of acceleration.
Plane motion of body: Instantaneous center of rotation, centroids and axodes - relative motion between two bodies - Three centres in line theorem - Graphical determination of instantaneous centre, diagrams for simple mechanisms and determination of angular velocity of points and links.

UNIT-IV
Cams: Definitions of cam and followers their uses Types of followers and cams Terminology Types of follower motion - Uniform velocity Simple harmonic motion and uniform acceleration. Maximumm velocity and maximum acceleration during outward and return strokes in the above 3 cases.
Analysis of motion of followers: Roller follower circular cam with straight, concave and convex flanks.

UNIT-V
Gears: Higher pairs, friction wheels and toothed gears types law of gearing, condition for constant velocity ratio for transmission of motion, Form of teeth: cycloidal and involute profiles. Velocity of sliding phenomena of interferences. Methods of interference. Condition for minimum number of teeth to avoid interference, expressions for arc of contact and path of contact - Introduction to Helical, Bevel and worm gearing.
Gear Trains: Introduction - Train value - Types - Simple and reverted wheel train
Epicycle gear Train. Methods of finding train value or velocity ratio - Epicycle gear trains. Selection of gear box-Differential gear for an automobile.

TEXT BOOKS:
1. Theory of Machines by Thomas Bevan/ CBS
2. Theory of machines/ PL. Balaney/khanna publishers.
3. Theory of Machines and Mechanisms/S.S.Rattan/Tata McGraw Hill Publishers
REFERENCE BOOKS:
1. The theory of Machines /Shiegley/ Oxford.
2. Mechanism and Machine Theory / JS Rao and RV Dukkipati / New Age International
Publishers
3. Theory of Machines / R.K Bansal/Fire Wall media Publisher