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MECHANICALENGINEERING

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Curriculum&EvaluationSchemeV&VIsemester Page39

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SubjectCode:KME603TheoryofMachinesLTP:310Credits:4

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UnitI(09Hours)

Introduction,mechanismsandmachines,kinematicsandkinetics,typesoflinks,kinematicpairsand

theirclassification,typesofconstraint,degreesoffreedomofplanarmechanism,Grubler’sequation,

mechanisms,inversionoffourbarchain,slidercrankchainanddoubleslidercrankchain.

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Velocityanalysis:Introduction,velocityofpointinmechanism,relativevelocitymethod,velocitiesin

fourbarmechanism,instantaneouscenter.

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Accelerationanalysis:Introduction,accelerationofapointonalink,accelerationdiagram,Corioli’s

componentofacceleration,crankandslottedlevermechanism,.

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UnitII(10Hours)

Cams:Introduction,classificationofcamsandfollowers,camprofilesforknifeedge,rollerandflatfaced

followersforuniformvelocity,uniformacceleration

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Gearsandgeartrains:Introduction,classificationofgears,lawofgearing,toothformsandtheir

comparisons,systemsofgearteeth,lengthofpathofcontact,contactratio,minimumnumberofteeth

ongearandpiniontoavoidinterference,simple,compound,revertedandplanetarygeartrains,sunand

planetgeartrain.

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UnitIII(08Hours)

Forceanalysis:Staticforceanalysisofmechanisms,D’Alembert’sPrinciple,dynamicsofrigidlinkin

planemotion,dynamicforceanalysisofplanarmechanisms,pistonforceandcrankeffort.Turning

momentoncrankshaftduetoforceonpiston,Turningmomentdiagramsforsinglecylinderdouble

actingsteamengine,fourstrokeICengineandmulti‐cylinderengines,Fluctuationofspeed,Flywheel.

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UnitIV(09Hours)

Balancing:Introduction,staticbalance,dynamicbalance,balancingofrotatingmasses,twoplane

balancing,graphicalandanalyticalmethods,balancingofreciprocatingmasses,balancingofsingle

cylinderengine.

CourseOutcomes:ThestudentswillbeabletoBlooms

Taxonomy

CO1Understandtheprinciplesofkinematicsanddynamicsofmachines.K2

CO2Calculatethevelocityandaccelerationfor4‐barandslidercrankmechanism K3

CO3DevelopcamprofileforfollowersexecutingvarioustypesofmotionsK3

CO4Applytheconceptofgear,geartrainandflywheelforpowertransmissionK3

CO5Applydynamicforceanalysisforslidercrankmechanismandbalancerotating&

reciprocatingmassesinmachines.K3

CO6Applytheconceptsofgyroscope,governorsinfluctuationofloadandbrake&

dynamometerinpowertransmissionK3

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MECHANICAL ENGINEERING

Curriculum & Evaluation Scheme V & VI semester Page 39 Subject Code: KME (^603) Theory of Machines L T P : 3 1 0 Credits: 4 Unit I (09 Hours) Introduction, mechanisms and machines, kinematics and kinetics, types of links, kinematic pairs and their classification, types of constraint, degrees of freedom of planar mechanism, Grubler’s equation, mechanisms, inversion of four bar chain, slider crank chain and double slider crank chain. Velocity analysis: Introduction, velocity of point in mechanism, relative velocity method, velocities in four bar mechanism, instantaneous center. Acceleration analysis: Introduction, acceleration of a point on a link, acceleration diagram, Corioli’s component of acceleration, crank and slotted lever mechanism,. Unit II (10 Hours) Cams: Introduction, classification of cams and followers, cam profiles for knife edge, roller and flat faced followers for uniform velocity, uniform acceleration Gears and gear trains: Introduction, classification of gears, law of gearing, tooth forms and their comparisons, systems of gear teeth, length of path of contact, contact ratio, minimum number of teeth on gear and pinion to avoid interference, simple, compound, reverted and planetary gear trains, sun and planet gear train. Unit III (08 Hours) Force analysis: Static force analysis of mechanisms, D’Alembert’s Principle, dynamics of rigid link in plane motion, dynamic force analysis of planar mechanisms, piston force and crank effort. Turning moment on crankshaft due to force on piston, Turning moment diagrams for single cylinder double acting steam engine, four stroke IC engine and multi‐cylinder engines, Fluctuation of speed, Flywheel. Unit IV (09 Hours) Balancing: Introduction, static balance, dynamic balance, balancing of rotating masses, two plane balancing, graphical and analytical methods, balancing of reciprocating masses, balancing of single cylinder engine. Course Outcomes: The students will be able to Blooms Taxonomy CO1 Understand the principles of kinematics and dynamics of machines. K CO2 Calculate the velocity and acceleration for 4 ‐bar and slider crank mechanism K CO3 Develop cam profile for followers executing various types of motions K CO4 Apply the concept of gear, gear train and flywheel for power transmission K CO Apply dynamic force analysis for slider crank mechanism and balance rotating & reciprocating masses in machines.

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Apply the concepts of gyroscope, governors in fluctuation of load and brake & dynamometer in power transmission

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MECHANICAL ENGINEERING

Curriculum & Evaluation Scheme V & VI semester Page 40 Governors: Introduction, types of governors, characteristics of centrifugal governors, gravity controlled and spring controlled centrifugal governors, hunting of centrifugal governors, inertia governors. Effort and Power of governor Unit V (09 Hours) Brakes and dynamometers: Introduction, Law of friction and types of lubrication, types of brakes, effect of braking on rear and front wheels of a four wheeler, dynamometers, belt transmission dynamometer, torsion dynamometer, hydraulic dynamometer Gyroscope: Space motion of rigid bodies, angular momentum, gyroscopic couples, gyroscopic stabilization, ship stabilization, stability of four wheel and two wheel vehicles moving on curved paths. Text / Reference Books

Kinematics and dynamics of machinery: Wilson and Sadler, Third edition, Pearson.
Theory of Mechanisms and Machines: Amitabh Ghosh and Ashok Kumar Mallik, Third Edition Affiliated East‐West Press.
Theory of Machines and Mechanisms: Joseph Edward Shigley and John Joseph Uicker, Jr. Oxford University Press
Kinematics and dynamics of machinery: R L Norton, McGraw Hill
Theory of Machines: S.S. Rattan, McGraw Hill
Theory of Machines: Thomas Bevan, CBS Publishers. Suggested Software MechAnalyzer

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MECHANICAL ENGINEERING