Page 21 - Vibrations

Here is an example of two resonances.

You will observe the

first resonance has a

larger Q than the

second resonance.

There is a greater

degree of damping

on the second

resonance.

Why are vibrations bad? They are noise sources –

usually unwanted.

Vibration is caused by a displacement of a

mechanical component.

Whenever a mechanical component is displaced,

stress occurs.

If you stress an object it will eventually fracture

(break).

You have a SN curve,

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