Rotating
machinery often experiences high vibration,
bearing and seal failures, etc., that are caused
by rotor dynamic problems. These problems may
include simple unbalance or more difficult
problems such as rotor-bearing critical speeds or
lack of proper machining clearances. Finite
element based rotor-bearing analysis software can
be used to perform the calculations necessary to
assess rotor-bearing critical speeds, shaft
deflection due to unbalance, and bearing
performance. .........more
Finite
Element and Operating Deflection Shape
Modal
analysis and operating deflection shape testing
(ODS) are considered advanced vibration analysis
techniques. Where the analysis of vibration
usually only measures the response of a machine
or structure to unknown forces, modal analysis
provides a measure of the forces, natural
frequencies and mode shapes. .........more
