A booklet about PeakVue™ - Illustration of its Wide Array of Applications in Fault Detection & Problem Severity Assessment (103 page booklet)
Highlights:
Stress Wave analysis is a powerful complementary tool that can detect a range of faults and problem conditions that Vibration Analysis alone might miss under certain conditions.
This publication serves as a “white paper” on the PeakVueTM analysis method which is actually a measure of “stress wave” activity in metallic components that are associated with impact, friction, fatigue cracking, lubrication, etc.
They generate faults in various components such as rolling element bearings and gears.
When components impact a series of stress waves will be generated that propagate away from the location of the defect in numerous directions.
The wave propagation introduces a ripple on the machine surface that causes a response output in a sensor detecting absolute motion such as an accelerometer or a strain gage.
This paper provides answers to:
What are stress waves?
How are they measured?
What are recommended measurement setups needed to ensure optimum PeakVue data is captured (proper high-pass filter, FMAX, # FFT lines, #time domain samples, etc.)?
How to choose the parameters that are dependent on the type of fault for which one is looking (cracked gear tooth versus generalized tooth wear, for example)?
How to specify meaningful PeakVue alarm levels to various machine components and operating speeds?
How studies have been conducted to determine the effect on PeakVue amplitudes of certain faults occurring on specific components and how they can generate very different amplitudes?
How certain faults might actually go undetected if the proper setup parameters are not chosen?
How Real World Case Histories are used to demonstrate the stress wave method?
