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
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
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
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
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
Why Rotor Blade Failures in Steam Turbines Demand Attention: A Data-Driven Perspective
Steam turbines are the workhorses of thermonuclear power plants and large ships, but their efficiency and safety hinge on one critical component: the rotor blade. Last-stage rotor blades (LSRBs) are prone to failure due to prolonged exposure to high-speed wet steam (HSWs). These failures aren’t just costly—they can lead to catastrophic accidents, with fractured blades causing cascading damage to other components running at high speeds.
- Khalid Farooq Khattak
- Fauji Fertilizer Company Limited
Avoiding Bearing Failure Through Proper Grease Management
More than 60% of bearing failures are due to lubrication, and grease failures contribute more than the oil. Whenever the bearings are replaced in the housing, mostly the housing is fully packed with the grease without keeping empty space and started operating the bearing after the housing end cover is sealed.
- Pratap Kambley
- Caravan Reliability Services
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
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