Syllabus Kinematics and Theory of Machines - (BE04000171) Total Credits Assessment Pattern and Marks Total Marks Theory Tutorial / Practical ESE(E) PA/CA(M) PA/CA (I) PBL (I) ESE (V) 4 70 30 20 30 50 200 Sr. No. Content 1. Introduction Theory of machines and branches, Concepts of Kinematics, Types of Kinematic Links, classification of Kinematic Pairs, Kinematic Chains, Mobility and constraints, Mechanisms and machines, Kinematic Diagrams, Degrees of Freedom, Kutzbach’s criterion, Grubler’s criterion and Grashof’s Law for mechanisms. Kinematic Inversion of mechanisms, Four-bar mechanisms and inversions, Slider-Crank Chain Mechanisms and inversions, and double-slider mechanisms and inversions. Straight line motion mechanisms. Davis and Ackerman steering gear mechanisms. (Chapter - 1) 2. Velocity & Acceleration Analysis of Mechanisms Determination of velocities and accelerations using graphical and analytical techniques Instantaneous centre method, number of instantaneous centres and properties, Graphical and analytical velocity analysis of four bar pin jointed linkages and four-bar slider crank linkages, Acceleration -tangential & normal, Graphical and analytical acceleration analysis of four-bar pin jointed linkages and four-bar slider crank linkages. Graphical velocity and acceleration analysis of Whitworth, Crank-Slotted lever quick return motion mechanisms. Coriolis component of acceleration. (Chapters - 2, 3, 4) 3. Dimensional Synthesis of Mechanisms : Analytical methods Introduction to Function, Path and Motion generation, Applications.Two position synthesis, Three Position synthesis. Freudenstein's Equation for three position function generation, Chebyshev’s spacing for precision points, angle relationships. Analytical synthesis of Four-bar and slider crank mechanisms. (Chapter - 5) 4. Belts and Chains Types of belt drives, Velocity ratio, Slip, Pulley arrangement, Length of belt, Law of belting, Ratio of friction tension, Power transmitted, Centrifugal effects on belts, Maximum power transmitted, Creep in belts. Chains : Chain length, Angular speed ratio, Classification of chains. (Chapter - 6) 5. Gears & Gear Trains Fundamental law of gearing, involute and cycloid profiles, interference & undercutting, Simple gear train, Compound gear train and Epicyclic gear train and Compound Epicyclic gear train, Differential gearbox of an automobile. (Chapters - 7, 8) 6. Brakes and clutches Brakes : Classification, analysis of block, band, and internal expanding shoe brakes; braking torque; condition for self-locking and self-energizing; thermal aspects. Clutches : Types – single plate, multiple plate, cone and centrifugal clutches; torque transmission capacity under uniform pressure and uniform wear; efficiency and applications. (Chapters - 9, 10) 7. Cams & Followers Classification of cams and followers, Displacement diagrams – Simple Harmonic Motion, Uniform velocity and uniform acceleration, cycloidal, polynomial, Cam profile design with pressure angle and undercutting constraints. (Chapter - 11)
