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106. Engineering Mechanics
FIRST TERM:
1. INTRODUCTION:
Idealisation of Mechanics, concept of Rigid Body.
External Forces (Body forces & surface forces).
Laws of Mechanics. -2 lects.
2. VECTOR METHODS:
Equality aud Equivalence of vectors.
Free and Bound vectors. Priniciple of Transmissibility of forces
Moment of a force about a point and about a line.
Couple and moment of a couple. couple moment as a tree vector.
Addition and subtraction of couples -4 lects.
3. VARIOUS SYSTEMS OF FORCES:
Statically Equivalent Force systems.
Simplest Equivalent of a system of forces. -3 lects.
4. EQUILIBRIUM:
Force analysis, Free Body Diagram,
Equations of equilibrium and their applications to various system of forces.
Plane Trusses. -9 lects.
5. FRICTION:
Friction on dry surfaces.
Static , kinetic and rolling friction.
Applications to inclined planes, wedge and blocks and belts & pulleys. -6 lects.
SECOND TERM:
1. KINEMATICS AND KINETICS OF A PARTICLE..
Rectiinear and curvilinear translations.
Normal and tangential components of acceleration. Projectile.
Motion on a smooth vertical curve. -6 Lects.
2. IMPULSE AND MOMENTUM:
Linear Impulse and linear momentum.
Central- Impact of elastic, semi-elastic & plastic bodies. - 4 lects.
3. KINEMATICS AND KINETICS OF RIGID BODIES
Angular velocity and angular acceleration.
Effective Forces on a rigid body.
D'Alembert's Principle- Application to Highways and Railway tracks.
Instantaneous centre of zero velocity.
Compound pendulum. Centre of Percussion.
Rotation of Rigid bodies. Rolling motion. Plane motion of rigid bodies.
Simple application- Four bar mechanism. -12 lects
4. WORK, ENERGY AND POWER:
Work done by forces and couples,
Potential,Elastic and kinetic energy, work energy Conservation of energy.
Concept of power and efficiency.
LABORATORY WORK:
About eight experiments based on the theory covered under the subject.
Texts / References
1. Engineering Mechanics I.M. Shames
2. Vector Mechanics- (Statics and Dynamics) F.B. Beer & E.R. Johnston
3. Engineering Mechanics- S. Timisheno & T. Yong
4. Engineering Mechanics- Statics Vol-I & Dynamics Vol-Il by V.S. Mokashi.
(Tata McGraw-Hill)
5. Engg. Mechanics-Statics & Dynamics by Dr. A.K. Tayal.
Umesh Publication, Delhi.
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