ENGINEERING MECHANICS:G205
THEORY/PRACTICAL:
| L 3 | T 0 | P 0 | Credit: 3 Curri. Ref. No.: G205 Prerequisite: G203 | Total marks: 100 |
| Total Contact hrs :60 Lecture: 45Tutorial:0 Practical:0 | Theory : 100= End Term Exam: 70+ P.A : 30 | |||
THEORY Total Periods :
| UNIT | TOPIC/SUB-TOPIC | HRS |
| 1 | INTRODUCTION Definition of Statics, Mechanics, Kinetics, Kinematics, Dynamics. Units of Measurement. Units Conversion Scalar and vector quantity | 3 |
| 2 | COMPOSITION & RESOLUTION OF FORCES Definition of force. Measurement and effect of force. Composition of forces. Methods of finding resultant of forces – Analytical and Graphical methods. Classification for forces Law of Parallelogram of forces, Concepts & equilibrium of forces in two dimension, Free body concept and diagram, Lami’s theorem, equation of equilibrium | 11 |
| 3 | CENTRE OF GRAVITY AND CENTROID & MOMENT OF INERTIA Difference between Centre of Gravity (C.G) and Centroid Methods of finding-out C.G. of simple geometrical plane figures. C.G. of standard solids: rod, rectangular prism, circular disk, circular cylinder ,hollow cylinder, circular cone, solid sphere, hollow sphere and composite solid. Centroid of standard shapes: rectangle, parallelogram, triangle, circle, quarter circle, semi circle, sector of a circle and composite area. Standard Sections: I-Section, C-Section, H-Section, T- Section, L-Section. Theorem of moment. Simple numerical problems on determination of C.G. & Centroid. Concept of moment of inertia and second moment of area. Radius of gyration. Theorem of perpendicular axis and parallel axis (without derivation). Second moment of area of common geometrical sections: Rectangle, Triangle, Circle (without derivation); Second moment of area for L,T and I section | 8 |
| 4 | FRICTION AND ITS APPLICATIONS Definition and Concept of Friction. Law of Friction, Co-efficient of friction, angle of friction, angle of repose. Types of friction. Screw Jacks – Friction, Relation between effort & load. Simple numerical problems | 4 |
| 5 | MOTION AND ITS APPLICATIONS Newton’s law of Motion – Applications Angular displacement, Angular Velocity, Angular Acceleration, Relative Velocity. Simple Engineering Problems | 3 |
| 6 | CURVILINEAR MOTION AND CENTRIPETAL FORCE Definition of Centripetal and Centrifugal forces. Importance of Super-elevation Expression. Simple Engineering Problem | 5 |
| 7 | WORK, POWER AND ENERGY Work done in rotation. Force displacement diagram. Work done in machines used for lifting. Definition of Power. Power of Engines & Pumps. Fly Wheels – Changes in speed and in Kinetic Energy. Simple Engineering Problems on work, Power and Energy. | 5 |
| 8 | SIMPLE MACHINES Definition of effort, Mechanical Advantage (MA). Velocity Ratio (V.R) efficiency of machine, Law of Machines. Screw Jack, Wheel & Axle, Rope & Pulley. Simple Calculations | 3 |
SUGGESTED LEARNING RESOURCES:
Reference Books :
1. R. K. Bansal A Text Book Engineering Mechanics Laxmi Publications
2. R. S. KhurmiA Text book of Engineering Mechanics S.Chand& Co Ltd.
3. S. Ramamurtham Engineering Mechanics & Strength of Materials DhanpatRai Publishing Co(P) Ltd.
4. Basudeb Bhattacharyya Engineering Mechanics Oxford University Press
5. Ali Hassan and R. A. Khan Fundamentals of Engineering Mechanics Acme Learning Pvt. Ltd.
6. J.L. Meriam and L.G. Kraige EngineeringMechanicsDynamics, John Wiley and Sons (Asia) Pvt. Ltd., Singapore, 2002.
7. I. H. Shames Engineering Mechanics Prentice-Hall of India Pvt. Ltd. New Delhi, 199
