Each Vibration Analysis course offered by IES follows the Vibration Analyst Certification Program as prescribed by the Mobius Institute.  Mobius Institute Board of Certification (MIBoC) is providing globally recognized certification to Category I-IV vibration.

Objectives:

 

At the end of VCAT II course, participants will have a clear understanding of:

• How a well-designed program and a reliability centered maintenance approach improve the OEE and therefore the bottom line
• The condition monitoring technologies: acoustic emission, infrared analysis (thermography), oil analysis, wear particle analysis, & motor testing via supplementary training
• How machines work; via supplementary selfstudy using the “Equipment Knowledge” section
• How to select the correct measurement location and axis, and collect good, repeatable measurements
• What the Fmax, resolution, averaging and other analyzer settings mean, and how to select the optimum settings for a wide variety of machine types
• How to analyze vibration spectra, time waveforms, envelope (demodulation), and phase measurements
• How to diagnose: unbalance, eccentricity, misalignment, bent shaft, cocked bearing, looseness, rolling element bearings faults, journal bearing faults, gearbox faults, resonance, and other conditions
• How to set alarm limits manually and with statistics
• How to balance and align a machine and correct a resonance condition.

 

Scope:

This course covers:

• Vibration Principles: -

• Basic motion
• Period, frequency
• Amplitude (peak to peak, RMS)
• Measurements (Displacement, velocity, Acceleration)
• Units, and unit conversations
• Time orbital and frequency domains vectors, modulation
• Natural frequency, resonance, critical speeds
• Shaft and casing vibration

• Data Acquisition: -

• Instrumentation (and AC quire readings)
• Transducers
• Sensor mounting, mounting natural frequency
• Fmax AC question time
• Proximity sensor conventions
• Triggering
• Test planning
• Test procedures
• Recognition of poor data
• Vibration system calibration

• Signal Processing: -

• Analogue and digital, sampling
• FFT application
• Windows (uniform, hanning, flat-top)
• Filters (low pass, high pass, band pass, tracking)
• Anti – aliasing
• Band- width, resolution
• Noise reduction
• Averaging (linear, synchronous time, exponential)
• Dynamic range
• Run-out compensation

• Condition Monitoring: -

• Vibration severity
• Alarm set-up (Narrowband, Envelope)
• Baseline /task planning
• Alternate technologies (e.g., oil analysis, wear Debris analysis, infrared Thermography, Motor Current Analysis, Acoustic Emission)
• Recognition of baseline variations
• Alarm and trip level determination
• Integrated health analysis

• Fault Analysis: -

• Basic spectrum analysis
• Spectral harmonics and sidebands
• Time waveform analysis
• Phase analysis
• Transient analysis
• Orbital analysis
• Shaft center- line analysis
• Enveloping
• Mass unbalance
• Misalignment
• Concentricity errors
• Mechanical looseness
• Rubs
• Instabilities
• Shaft bow
• Bearing (rolling element, journal) defects
• Electrical motor defects
• Gearbox defects
• Resonance and critical speeds

• Corrective Action Recognition: -

• Shaft alignment
• Concentricity
• Balancing
• Basic maintenance action
• Lubrication

• Equipment Testing and Diagnostics: -

• Impact testing
• Forced response testing (e.g., Coherence, Transfer function)
• Modal analysis
• Process safety

• Reporting and Documentation: -

• Vibration CM reports
• Machine history records
• Decision making and recommend action

• Fault Severity Determination: -

• Levels (Overall, Narrowband, component)
• Spectrum analysis
• Time waveform and orbit analysis
• Severity chart, Graphs, Formulae

• Theoretical Rotor and Bearing Dynamics: -

• Rotor characteristics
• Bearing characteristics

• Field Balancing: -

• Single-plane
• Two-plane

Target Audience:

All maintenance crew and maintenance supervisors.

 

Test:

A multiple-choice test is administered at the conclusion of the program. Incorrectly answered questions will be reviewed with student to ensure understanding before completion of course.

 

Course Materials:

All participants are issued a Training Manual (Student Guide).

 

Course Completion Certificate:

Program participants who successfully complete the course are issued a certificate of completion.