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Vibration Analysis

All machinery has vibration.  It is the job of a Wade Dynamics Vibration Analyst to determine what is within tolerance, and what is not acceptable. We use the latest in vibration testing equipment and software to determine the frequencies causing a machine to vibrate. The following is a list of problems that can be detected through vibration analysis:

Fan/Spindle Unbalance
Rotor Unbalance
Misalignment
Soft Foot
Deteriorating Bearing
Worn Belts
Worn Pulley
Worn Coupling
Worn Shaft
Bent Shaft
Cracked Foundation
Loose Foundation Bolts
Oil Whirl Instability
Blade/Vane Pass Frequency
Natural Resonant Frequency
Structural Resonance

All of these problems can be measured through spectral analysis at the machines bearings. A vibration spectrum on any bearing will have several "spikes" that are a result of the "thumps" that the vibration sensors pick up. These spikes may be associated with the different rotational speeds of the machine and may occur as exact multiples of the running speed of that piece of equipment. The problems listed above all occur at different multiples of running speed.

It is the job of a Wade Dynamics Vibration Analyst to calculate the amplitude and frequency of these spikes and to then determine what is over ISO tolerances and what corrective action is required.

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