Simple harmonic motion is a type of motion which repeats itself after a specific interval of time. It is a repetitive motion in which the body keeps following a specific pattern of motion, in simple harmonic motion the object covers some distance about a central position called the mean position. The point at which the object reaches after covering the maximum distance is called the extreme position. The distance between the maximum position and the mean position is called amplitude of the motion.
However once this to and fro motion is started the body will always not touch the maximum or extreme position in reality its distance will start decreasing gradually. This simple harmonic motion is found in several objects, some very fine examples are the motion of pendulum and movements of an object tied to a spring. It is assumed that when any object with its one end tied to a fixed point is displaced from its position it can execute simple harmonic motion, and there is always some work done to displace the object initially which is then used to keep the object moving.
Damped motion on the other hand is a motion in which an attempt is made to reduce the amplitude of the vibrating body. So a damped simple harmonic motion is the motion in an object tied to a fixed point is displaced from its position, and it will start executing simpler harmonic motion. Once the motion is started through some external source or through the inheritance of the system the amplitude of the motion is damped.
However once this to and fro motion is started the body will always not touch the maximum or extreme position in reality its distance will start decreasing gradually. This simple harmonic motion is found in several objects, some very fine examples are the motion of pendulum and movements of an object tied to a spring. It is assumed that when any object with its one end tied to a fixed point is displaced from its position it can execute simple harmonic motion, and there is always some work done to displace the object initially which is then used to keep the object moving.
Damped motion on the other hand is a motion in which an attempt is made to reduce the amplitude of the vibrating body. So a damped simple harmonic motion is the motion in an object tied to a fixed point is displaced from its position, and it will start executing simpler harmonic motion. Once the motion is started through some external source or through the inheritance of the system the amplitude of the motion is damped.