Theory of Machines & Applications

 Definitions:-

The subject Theory of Machines may be defined as that branch of

Engineering-science, which deals with the study of relative motion

between the various parts of a machine, and forces which act on

them. The knowledge of this subject is very essential for an

engineer in designing the various parts of a machine.

Kinematics: The study of motion without regard to forces

More particularly, kinematics is the study of position, displacement,

rotation, speed, velocity, and acceleration.

Kinetics: The study of forces on systems in motion

A mechanism: is a device that transforms motion to some desirable pattern

and typically develops very low forces and transmits little power.

A machine: typically contains mechanisms that are designed to provide

significant forces and transmit significant power.

Application of Kinematics

Any machine or device that moves contains one or more kinematic elements

such

As linkages, … gears…. belts and chains.

Bicycle is a simple example of a kinematic system that contains a chain drive

to provide Torque

.An Automobile contains many more examples of kin-systems…

the transmission is full of gears….


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