Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details.

Like this presentation? Why not share!

No Downloads

Total views

471

On SlideShare

0

From Embeds

0

Number of Embeds

171

Shares

0

Downloads

13

Comments

0

Likes

1

No embeds

No notes for slide

- 1. Week 1 Fundamentals of Engineering Mechanics: Objectivities of this class 1. Fundamentals of Engineering Mechanics - Definitions of Key Concepts 2. Statics - Fundamental Statics of a Rigid Body 3. Summary - Summary, Quiz, Real-life examples This class is lecturing in order of above objectivities.
- 2. 1. Introduction - What is Engineering Mechanics? – Engineering Mechanics Kinematics Kinetics DynamicsStatics Week 1 Fundamentals of Engineering Mechanics:
- 3. 1. Introduction - What is Engineering Mechanics? – Engineering Mechanics Kinematics Kinetics DynamicsStatics Week 1 Fundamentals of Engineering Mechanics: Branch of science which deals with the behavior of a body when the body is at rest or in motion. Divided in two branch with Statics and Dynamics.
- 4. 1. Introduction - What is Engineering Mechanics? – Engineering Mechanics Kinematics Kinetics DynamicsStatics Week 1 Fundamentals of Engineering Mechanics: Body is at rest. Body is in motion.
- 5. 1. Introduction - What is Engineering Mechanics? – Engineering Mechanics Kinematics Kinetics DynamicsStatics Week 1 Fundamentals of Engineering Mechanics: When the forces are also considered for the body in motion When the forces which cause the motion are not considered.
- 6. 2. Definitions(Key concepts) ◆ Vector Quantity: A quantity which is completely specified by magnitude and direction ex: velocity ,acceleration ◆ Scalar Quantity: A quantity, which is completely specified by magnitude only ex: mass ,length, temperature…. ◆ A Particle : A particle is a body of infinitely small volume and the mass of the particle is considered to be concentrated at a point Week 1 Fundamentals of Engineering Mechanics:
- 7. 2. Definitions(Key concepts) ◆ Law of Parallelogram of Forces : Used to determine the resultant of two forces acting at a point in a plane - If two forces, acting at a point be represented in magnitude and direction by the two adjacent sides of a parallelogram, then their resultant is represented in magnitude and direction by the diagonal of the parallelogram passing through that point. Week 1 Fundamentals of Engineering Mechanics:
- 8. 2. Definitions(Key concepts) ◆ Law of Parallelogram of Forces : * From C draw CD perpendicular to OA produced. Let Now a = Angle between two forces P and Q = LAOB Angle LDAC=LAOB = a Week 1 Fundamentals of Engineering Mechanics:
- 9. 2. Definitions(Key concepts) ◆ Law of Triangle of Forces: If three forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, they will be in equilibrium. ◆ Lami's Theorem : If three forces acting at a point are in equilibrium, each force will be proportional to the sine of the angle between the other two forces. Week 1 Fundamentals of Engineering Mechanics:
- 10. 2. Definitions(Key concepts) Week 1 Fundamentals of Engineering Mechanics:
- 11. 2. Definitions(Key concepts) ◆ System of Units: * C.G.S. System of units. Length is expressed in centimetre, mass in gram and time in second. The unit of force in this system is dyne * M.K.S. System of Units. Length is expressed in metre, mass in kilogram and time in second. * S.I. System of Units: Length is expressed in metre, mass in kilogram and time in second. The unit of force in this system is Newton and is represented N. Week 1 Fundamentals of Engineering Mechanics:
- 12. 2. Definitions(Key concepts) ◆ System of Units: <Relation between Newton and Dyne> Week 1 Fundamentals of Engineering Mechanics:

No public clipboards found for this slide

Be the first to comment