Vibration Analysis
Two Minute Tips
Crest Factor in Vibration Analysis
The Crest Factor (CF) is a fundamental metric in vibration analysis, defined as the ratio of the peak amplitude of a time waveform to its root mean square (RMS) value This dimensionless ratio serves as an indicator of the severity of transient or impulsive events in a vibration signal.
- Muhammad Muneeb Babar
- Al Jouf Cement Company
Two Minute Tips
What is Resonance?
Resonance is a term that is familiar to everyone, but what is the phenomenon of resonance and what is the cause of resonance? Also, what is the "resonance frequency" that people often talk about?
- Bor-Tsuen Wang
- National Pingtung University of Science and Technology
Two Minute Tips
Understanding Vibration in Planetary Gears: Detection and Causes
Planetary gear systems are marvels of engineering, offering high torque density and efficiency. However, vibrations in these systems can signal underlying issues that, if left unchecked, may lead to costly failures.
- Motaz Abdelsalam Mohamed
- Mobius Institute
Two Minute Tips
Join Us at Reliable Plant Conference 2025!
The Reliable Plant Conference & Exhibition, co-located with the Machinery Lubrication Conference & Exhibition, is a 4-day event dedicated to the latest trends and tactics in maintenance and reliability. With expert-led learning sessions, access to cutting-edge tools and technologies offered by over 100 exhibitors, and powerful networking experiences, this is a can’t-miss event for anyone looking to transform their maintenance strategy.
- Noria Corporation
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
