Vibration Analysis
Two Minute Tips
Cavitation: Definition, How to Detect and How to Prevent
Cavitation occurs when the liquid in a pump turns to a vapor at low pressure. It occurs because there is not enough pressure at the suction end of the pump, or insufficient Net Positive Suction Head available (NPSHa). When cavitation takes place, air bubbles are created at low pressure.
- Wael Salman
- Dietsmann France
Case Studies and Stories
Vibration Analysis Report of Chilled Water Pump
Due to unexpectedly high vibration levels in a newly commissioned chilled water pump located at Tampines Mall, Alstern Technologies Singapore Pte Ltd engaged SPM to conduct a comprehensive vibration analysis. This analysis involved on-site testing, including run-up and coast-down tests.
- Aung Zay Yar Min
- SPM Instrument
Two Minute Tips
Understanding Critical Speed in Rotating Machinery
This article explains the concept of critical speed in the world of mechanical engineering and key points such as natural frequency, resonance and avoidance.
- Motaz Abdelsalam Mohamed
- Mobius Institute
Two Minute Tips
Vibration Monitoring for Paper Machines
Every minute of unplanned downtime for a paper machine represents lost revenue. Maintenance and reliability engineers monitor vibration to avoid costly repairs and breakdowns by detecting early warnings of faults such as imbalance, misalignment, looseness, and lubrication issues.
- Peter Eitnier
- Wilcoxon Sensing Technologies
Two Minute Tips
What’s the Better Bearing: Shield or Sealed?
Very frequently, I receive a common question from customers and followers: Which bearing is best, shielded or sealed? To provide better understanding, I created a simple document that compares shielded bearings and sealed bearings.
- Pratap Kambley
- Caravan Reliability Services
Two Minute Tips
Understanding Piping Vibration: Types, Detection, and Solutions
Piping vibration is a critical issue that can affect the integrity and performance of industrial systems. Let's explore the different types of piping vibrations, how to detect them, and effective solutions...
- Motaz Abdelsalam Mohamed
- Mobius Institute
Case Studies and Stories
Vibration Spectrum Analysis on Chiller Unit
A call for vibration survey was performed to identify vibratory force that has within the chiller motor and compressor at different vibration location on system.
- Aung Zay Yar Min
- SPM Instrument
Five Minute Facts
Following Bearing Damage Progression to Failure Mode
When vibration enveloping was introduced several decades ago, it became possible to detect damages in earlier stages than before, and it then became relevant to talk about realistic pre- warning times.
- Ron Kittle
- SPM Instrument Inc
Interviews
Adding Ultrasound Monitoring to Bearing CBM
Peter Eitnier of Wilcoxon talks about why vibration monitoring practitioners are adding ultrasound to their CBM program and how precision lubrication can extend the life of bearings.
- Peter Eitnier
- Wilcoxon Sensing Technologies
