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Human Error in Maintenance
Human error, contributing to 20-30% of equipment failures, is a significant challenge in reliability and maintenance en…
Coherence to Show Correlation Between Two Spectrum
Coherence, a measure of linear relationship between two spectra, is useful in vibration analysis for machinery health m…
CHW Pump Bearing Outer Race Fault
Severe bearing wear was found on a motor, with non-synchronous harmonics and sub-synchronous sidebands indicating BPFO …
Bearing Fault Detection by Vibration Analysis and Machine Learning
Bearing Fault Detection by Vibration Analysis and Machine Learning
Ball Mill - Loose Bearing Housing on a High Voltage Motor
A catastrophic breakdown was avoided for a client’s production-critical machine. The Vibguard vibration system detected…
Ground Loops: What is causing that electrical noise
Electrical noise at 60 or 50 Hertz in data may be caused by ground loops, where the measurement system and sensors are …
Motor Stage 3 Ball Bearing Defect
The analysis identifies a 'stage 3' ball bearing defect on a motor NDE that is being closely monitored for the rate of …
Cooler Fan DE Bearing with BPFO
Spectrum analysis of DE cooler fan bearing shows BPFO and harmonics, overall vibration is 1.04 mm/s.
Polymer Plant Blower Bearing Looseness
A blower supplying nitrogen for polymer drying exhibited noise and vibration. After troubleshooting, the issue was trac…
Stator Looseness Trouble Analysis
Vibration in a reactor jacketing pump increased to 4g for two months, likely due to rotor bar passing frequency (RBPF).…
Cepstrum Analysis for Localized Fault Detection and Diagnosis
Cepstrum analysis, a technique for localized fault detection, involves power spectrum, logarithm, and inverse Fourier t…
Kurtosis Analysis for Diagnosing Faults in Reciprocating Compressors
Kurtosis analysis is valuable for diagnosing faults in reciprocating compressors, as it quantifies waveform peakedness …
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