Question

What is damping and its types?

Answer 1

1. Damping is the method of removing energy in order to control vibratory motion like noise, mechanical oscillation, and alternating electric current.
2. In physics, damping is the process of dissipating energy to prevent vibratory motion such as mechanical oscillations, noise, and alternating electric currents.
3. Different types of damping:
   3.1 Mechanical damping: Mechanical dampening comes in a variety of forms.
   3.2 Friction: Friction, also known as dry or Coulomb damping in this context, results primarily from electrostatic forces of attraction between sliding surfaces and transforms mechanical energy of motion, or kinetic energy, into heat.
   3.3 Viscous damping: Energy losses in liquid lubrication between moving components or in a fluid-driven through a tiny hole by a piston, as in automotive shock absorbers, induce viscous damping. The relative velocity between the two ends of the damping device determines the viscous-damping force.
4. 
5. The above graph is between Amplitude and time.
6. When damping happens, the magnitude of wave's amplitude decrease with time.