Vibration Control Vibration Control Acceptable levels of vibrations

Vibration Control

Vibration Control • • Acceptable levels of vibrations Balancing of rotating machine Critical speed of rotating shaft Isolator design – Isolation with base motion – Isolation with fixed base • Vibration absorber design – Undamped absorber – Damped absorber 2

Acceptable levels of vibrations 3

Vibration Measurement • • • Zero to peak (zk) Peak to peak (pk-pk) Root mean square (RMS) Average Peak ratio Form factor (FF) 4

Vibration Measurement 5

Vibration Measurement 6

Vibration Measurement 7

Balancing of rotating machine Static balancing -Dynamic balancing 8

Balancing of rotating machine Static balancing 9

Balancing of rotating machine Static balancing 10

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Critical speed of rotating shaft 12

Critical speed of rotating shaft 13

Critical speed of rotating shaft 14

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Isolator design Isolation with fixed base 17

Isolator design Isolation with fixed base 18

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Isolator design Isolation with base motion 21

Isolator design Isolation with base motion 22

Isolator design Isolation with base motion 23

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Vibration Absorber • Undamped Vibration Absorber • Damped Vibration Absorber 30

Undamped Vibration Absorber 31

Undamped Vibration Absorber 32

Undamped Vibration Absorber 33

Undamped Vibration Absorber 34

Undamped Vibration Absorber 35

Undamped Vibration Absorber 36

Undamped Vibration Absorber 37

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