Tekwell’s rotating equipment vibration analysis is a diagnostic technique used to monitor and assess the condition of rotating machinery, such as electric motors, to identify issues related to imbalance, misalignment, bearing faults, and mechanical looseness. Vibration analysis helps prevent costly failures by detecting problems early.
How Vibration Analysis Works
Data Collection
- Sensors (accelerometers) are mounted on the electric motor housing or bearings.
- Sensors measure vibrations in multiple axes (horizontal, vertical, and axial).
- The data is collected in real-time or during periodic maintenance checks.
Signal Processing
- Vibration signals are converted into frequency spectra using tools like Fast Fourier Transform (FFT).
- Frequencies are analyzed to identify vibration patterns.
Analysis & Diagnosis (Each fault has a unique vibration signature)
- Imbalance: Vibration at 1x running speed (fundamental frequency).
- Misalignment: Vibration at 1x and 2x running speed.
- Bearing Defects: High-frequency noise and harmonics related to bearing fault frequencies.
- Mechanical Looseness: Broad frequency range vibrations and harmonics.
- Spectral analysis software helps identify the source and severity of issues.
Reporting & Recommendations
- After analysis, a report is generated detailing the vibration levels, fault diagnosis, and corrective actions.
- Common corrective actions include rebalancing, alignment adjustments, or replacing worn components.
Common Issues Detected with Vibration Analysis
- Imbalance: Uneven weight distribution around the rotor.
- Misalignment: Shafts not collinear or properly aligned.
- Bearing Wear: Faulty or worn bearings generating excessive vibration.
- Looseness: Mechanical components not properly secured.
- Resonance: Structural issues causing amplification of vibration at specific frequencies.
Applications
- Manufacturing plants
- HVAC systems
- Power generation
- Water treatment facilities
- Oil and gas industry
Vibration analysis is a critical component of a predictive maintenance strategy, helping industries reduce unplanned downtime and maintain equipment reliability.
Problems/Conditions Detectable by Vibration Analysis
- Faults in rotating equipment such as fans, pumps and gearboxes
- Misalignments
- Unbalanced loads
- Rolling element bearing faults
- Resonance conditions
Benefits of Vibration Analysis
- Reduces maintenance costs
- Reduces equipment downtime
- Increases equipment life
- Lowers repair costs
Need Vibration Analysis?
Email us at info@tekwellservices.com, give us a call at 800-829-7454, or complete our online Pump and Electric Motor Repair Form to set up vibration testing and analysis right now.