Question

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Define forced vibration and resonance......"in simple way"......​

Answer 1

A vibration which results from the application of a periodic force to a body capable of vibrating. The amplitude of forced vibrations becomes very great when resonance occurs, that is, when the frequency of the applied force equals the natural frequency of the vibrator, particularly if the damping is small, FREE VIBRATIONS.

In mechanical systems, resonance is a phenomenon that occurs when the frequency at which a force is periodically applied is equal or nearly equal to one of the natural frequencies of the system on which it acts. This causes the system to oscillate with larger amplitude than when the force is applied at other frequencies

Answer 2

Forced vibration is a type of vibration in which a force is repeatedly applied to a mechanical system.

resonance is the tendency of a system to vibrate with increasing amplitudes at some frequencies of excitation.

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