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A body in free vibration vibrates due to an initial disturbance and is allowed to vibrate freely. The surrounding medium, such as air or moisture, will act as a resistance to the vibration of the body which will result in a decrement in the amplitude.
Viscous damping is damping that is proportional to the velocity of the system. That is, the faster the mass is moving, the more damping force is resisting that motion. Fluids like air or water generate viscous drag forces.
Viscous Damped Free Vibrations. Viscous damping is damping that is proportional to the velocity of the system. That is, the faster the mass is moving, the more damping force is resisting that motion. Fluids like air or water generate viscous drag forces. A diagram showing the basic mechanism in a viscous damper.
28 Ιουλ 2021 · While we assumed that the natural vibrations of the system eventually damped out somehow, leaving the forced vibrations at steady-state, by explicitly including viscous damping in our model we can evaluate the system through the transient stage when the natural vibrations are present.
Analysis of vibrations in one dimension: free and forced vibrations; undamped, viscous damped, and friction-damped.
