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Troubleshooting: A Case Study of Electrostatic Discharge Affecting Rotor Dynamic Attributes
This article explains how to determine cause of journal bearing damage with erosion pattern as shown above. Introduction: As a machinery...

PS
Apr 22, 20244 min read
221 views
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How to Detect Bearing Damage in Screw Compressor through Demodulating Vibration Data
In this article, a case study of defective rolling element bearing detection will be discussed. Figure 1 - Bearing Inner Race The machine...

PS
Apr 12, 20243 min read
142 views
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Vibration mitigation of 260 MW Francis turbine and generator by turbine guide bearing gap adjustment
We were engaged to perform vibration measurement and analysis of a 260 MW Francis turbine and generator and recommended a solution to...

NK
Jun 15, 20232 min read
370 views
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One shot field balancing on 41 MW steam turbine with pipe strain problem
We were engaged to perform vibration measurement and analysis of a 41 MW steam turbine and generator as the excessive vibration amplitude...

NK
Jun 8, 20234 min read
217 views
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Torsional Vibration Measurement and Analysis on Flue Gas Blower
Recently, we did torsional vibration measurement on a disk-pack coupling of 315 kW induction motor driven flue gas blower. A strain gauge...

PS
Jun 24, 20221 min read
91 views
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Oil whip instability vibration in generator
A steam turbine-generator set was overhauled for about two (2) months before it was attempted to put back to services again. However,...
RC
Feb 9, 20224 min read
342 views
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Commissioning support and troubleshooting high vibration problem on a new steam turbine
This is our last job of year 2021 working on a new steam turbine – generator set during commissioning. Unit installation was completed...
RC
Jan 13, 20222 min read
113 views
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Vibration analysis on hydroturbine-generator set with high-speed camera
This is a case study of using motion amplification® (MA) technology to analyze vibration data of a small hydroturbine-generator set...
RC
Dec 7, 20212 min read
95 views
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Motion amplification of cooling water pipe
Crack is noticed at cooling water pipe of a large generator which is suspected due to excessive vibration. Motion amplification (MA) is...
RC
Oct 22, 20212 min read
65 views
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Air duct vibration analysis with motion amplification and fatigue assessment
This is a case study of vibration measurement and analysis on air duct of primary air fan installed at a new thermal power plant....
RC
Sep 20, 20211 min read
239 views
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Bump Test with Motion Amplification Camera
In general we perform bump/impact test to find natural frequency as rough test to prove if resonance problem exists. But however if we...
PS
Oct 28, 20192 min read
370 views
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The impossible is now possible : measuring pipe vibration inside the furnace
High vibration was observed at pipes installed inside the furnace in a refinery and this results in a concern of fatigue failure. This...
RC
Nov 26, 20181 min read
140 views
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Out of reach, yes we can!
One of the reasons we invested in Iris M Motion Amplification (MA) camera is for piping including its associated structures and...
RC
Jul 25, 20181 min read
93 views
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Motion amplification of agitator
An agitator installed in petrochemical plant is reported excessive vibration amplitudes measured at motor, gearbox and associated...
RC
Jun 2, 20182 min read
528 views
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Introduction to Piping Vibration Analysis
From our experience piping vibration problem is increasing demand for analysis and field troubleshooting which can be due to increasing...
RC
Feb 18, 20183 min read
1,696 views
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Big Loss Field Balancing
We were requested to witness field balancing on a primary air fan being performed by third party. They were using handheld vibration data...
PS
Jan 29, 20182 min read
131 views
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Solving resonance problem of cooling oil pipe
Cooling oil pipe of 700 MW transformer revealed excessive vibration amplitude measured at cooling oil pump at more than 200 microns, pp...
RC
Jan 26, 20181 min read
155 views
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