Vibration Analysis
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
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
Two Minute Tips
The Physics Behind Vibration and Resonance
Our objective is to collect the vibration in order to identify the input—the force. From basic physics, if you have a mass and shake it by a force, it will vibrate corresponding to...
- Ali Al-Shurafa
- Saudi Aramco
10 Minute Talk
How Does Motion Amplification Work?
Motion amplification uses a camera and a collection system. We use the pixels of the camera as vibration sensors—each pixel becomes a vibration sensor. The idea here is that...
- Stuart Walker
- Reliability Maintenance Solutions Ltd
Two Minute Tips
Detecting Pump Faults Using Motion Amplification
I’ve used motion amplification in industry intensively over the last two years. We’ve had some great successes with it, and it’s changed the way I do my work. We used this technology on cooling water pumps that are…
- Stuart Walker
- Reliability Maintenance Solutions Ltd
Two Minute Tips
How Do Speed and Load Affect Bearing Life?
Bearing life is proportional to speed. If we double the speed, we halve the life. And the life is proportional to the cube of the load. In other words, the higher the load...
- Jason Tranter
- Mobius Institute
