MEEG 216
Engineering Mechanics
3 Cr.
Marks division:
Internal = 25%
• Internal examination (2 in no.) = 20%
• Assignment = 5%
External or Final Examination= 75%
The attendance must be 80%. If a student fails in both internal examinations and has an attendance less than 80%, he/she will be barred from taking external/final examination.
For syllabus, students are advised to visit the website of Mechanical Department and download from it. There can be changes in the syllabus during the course of study.
LEARNING OUTCOMES
At the end of this course, students will be able to
1. Explain fundamentals of engineering principles, concept of centre of gravity and moment of inertia, importance of frictional force in real world problems.
2. Analyze and explain the components of linear and rotational motion (displacement, velocity, acceleration) including graphs and their interrelationships
3. Apply different forces and work force problems including the fundamental force of gravity and Newton’s laws
4. Classify the different forms of energy and use the conservation of energy to work problems
5. Apply principle of energy and momentum, principle of virtual work to solve engineering problems.
COURSE CONTENTS
1. Introduction to Statics [8 hr]
Definition of force, transmissibility, superposition, parallelogram law, triangle law, action and reaction, reactions at supports, free body diagrams, resultant of forces, concurrent coplanar forces, forces in plane and space, equilibrium of forces, couple of forces.
2. Properties of Areas [8 hr]
Distributed forces, Centroid, Centre or gravity, area moment of inertia, polar moment of inertia, radius of gyration, product moment of inertia, principal axes and principal moments of inertia, Mohr’s circle of moment of inertia.
3. Introduction to Statics of Structures [4hr]
Equilibrium of members in a structure, equilibrium of trusses, methods of joint, methods of sections.
4. Friction [4hr]
Friction, the origin of friction, laws of friction, and application of friction to engineering problems. Friction in a wedge.
5. Introduction to Dynamics/Kinematics of Particles [6 hr]
Kinematics and kinetics, Kinematics of particles, rectilinear motion, curvilinear motion, projectiles, tangential and normal components, radial and transverse components, Newton’s second of motion, kinematics of a particle moving in a curve, banking and super-elevation.
6. Kinematics of Rigid Bodies [6hr]
Rotation of a rigid body about a fixed axis, uniformly accelerated rotation, velocity and acceleration of a rigid body in general plane motion, rectilinear and curvilinear translation, centroidal motion, and general motion.
7. Energy and Momentum methods [6hr]
Work and Energy methods for rectilinear translation, work Energy Principle, conservation of Energy, Impulse and momentum, Collision, direct impact, conservation of linear momentum.
8. Virtual work [4hr]
Virtual Displacement, Principle of virtual work, Applications of virtual work principle to machines, Mechanical efficiency, Work of a force/couple (springs, etc.), Potential energy and equilibrium.
References:
1. I.H.Shames, "Engineering Mechanics: Statics and Dynamics" Prentice Hall of India, 3rd Edition
2. F.P.Beer and Jhonston Jr. "Vector Mechanics for Engineers, Statics and Dynamics", Mc Graw-Hill, Singapore,1987, 11th Edition
3. Meriam J.L., "Mechanics: Part 1: Statics, Part 2: Dynamics", Wiley International, 2nd Edition
4. Synge, "Principles of Mechanics", Mc Graw- Hill, 3rd Edition
5. K.L.Kumar "Engineering Mechanics", TMH