resonance
White Papers
Torsional Issues: Stop Guessing and Measure the Problems Directly
Failure mechanisms such as misalignment, balance, or lubrication issues can cause machinery failure. Many of these problems can be identified using standard non-destructive testing (NDT) methods including vibration analysis, infrared thermography, and tribology....
- Trent Martz
- IVC Technologies
Webinars
Condition Monitoring of Rotary Screw Compressors with HD Technology
This webinar covers condition monitoring of rotary screw compressors designed for air compression. From a historical perspective, measuring the operating conditions of rotary compressors has been quite difficult...
- Håkan Hedlund
- SPM Instrument AB
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
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
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
Five Minute Facts
Some Common Symptoms of Resonance
As analysts, we follow a specific workflow to resolve a resonance problem. First, we detect high vibration from routine data…
- Ali Al-Shurafa
- Saudi Aramco
