Simple harmonic motion can be described as an oscillatory motion in which the acceleration of the particle at any position is directly proportional to the displacement from the mean position. It is a special case of oscillatory motion.
The damping of a real system is a complex phenomenon involving several kinds of damping forces.
- The damping force opposes the motion of the body
- The magnitude of the damping force is directly proportional to the velocity of the body
- The direction of the damping force is opposite to the velocity.
- The damping force is proportional to the system’s velocity, and it is more when the system moves rapidly and less when the system slowly moves.