Vibration Analysis
Five Minute Facts
Resonance Solutions: Reduce Exciting Forces
We've confirmed resonance after collecting data. Now, we need a solution. Let's go back to basic physics; we can focus on the frequency or the amplitude...
- Ali Al-Shurafa
- Saudi Aramco
Five Minute Facts
Resonance Separation Margin
For separation margin, we want to quantify for the x-axis how far we are from the natural frequency. The concept is very easy: you identify the running speed...
- Ali Al-Shurafa
- Saudi Aramco
Case Studies and Stories
Hear Failure from Miles Away
Experienced maintenance professionals can understand if a machine is healthy or not by walking up to it and using their senses – hearing, touch, smell, and sight. But this skill doesn’t scale when there are more plants than experts. This case study – a TechINSIGHT – shows how IoT maintenance solutions are helping machine analysts be in multiple places at once...
- Brett Burger
- National Instruments
Two Minute Tips
Resonance Testing Methods
If you suspect resonance, you can confirm it through specialized tests. Some tests, such as mathematical modeling and variable-frequency shaker, are not so common in plant work. But the other two are more common, and these are...
- Ali Al-Shurafa
- Saudi Aramco
Two Minute Tips
Your Accelerometer Questions Answered
Whether you’re new to vibration monitoring and considering which accelerometers are appropriate for your application or are simply replacing existing accelerometers, selecting the right equipment for your requirements is critical to the effectiveness of the vibration monitoring process…
- Chris Hansford
- Hansford Sensors
Two Minute Tips
What Is Your Bearing Risk Appetite?
One question is, how much does it matter that we know how much life exists in our bearings? Ask yourself, what happens if it fails? How much does it affect the plant...
- Jason Tranter
- Mobius Institute
10 Minute Talk
Suspect Resonance? Check What the Machine Is Sitting on
The motor in this case study was brought in for a routine PM during the plant’s scheduled downtime. During the run test, they experienced very high vibration, but nothing else was abnormal…
- Ali Al-Shurafa
- Saudi Aramco
10 Minute Talk
Diagnosing and Correcting Resonance in a Vertical Seawater Pump
This case involves a vertical cooling seawater pump in a power plant. The speed is 600 rpm, and it had no noise or operational issues. The current was normal, but they received…
- Ali Al-Shurafa
- Saudi Aramco
Two Minute Tips
Condensate Water Pump Resonance Caused by a Bearing Defect
This case involves a motor-driven vertical condensate water pump. A couple of weeks after commissioning, we noticed a severe increase in vibration…
- Ali Al-Shurafa
- Saudi Aramco
