Is it used in designing and manufacturing new shafts?

Can it be used in the normal maintenance environment, after the machinery installation?

This message has been edited. Last edited by: Josh,

Josh,
The answer is yes and yes. Modal analysis can be used as follows:
1) in the design phase to verify analytical model
2) in the manufacture phase to verify or prove there are no resonant structure problems or interval faults (cracks or voids)
3) in the installation phase to verify structural response or to diagnose high vibrations
4) to assist in diagnosis and correction of high vibrations found by Simple survey.

Modal analysis and the related Structure test methods are essential for anyone involved with machinery Vibrations.

Walt

There are methods of determining resonance that could be discussed.
Examples:
Impact testing
Modal hammers
Problems with balancing
Programs used to animate ODS and Modal data like ME-Scope

Excellent replies guys. We have used modal analysis several times to identify problems with large fans. It really helps people understand how a total system comes together to make a reliable asset.