CAT 2 (e)

ISO CERTIFICATION

This option includes the certification exam, that follows the ISO 18436.2 standard.

The ISO 18436.2 exams for Category 2 are 100 multiple choice questions, the time given is 3 hours and the pass mark is 75%

Quick summary

The vibration Analyst "Intermediate: course is intended for personnel who have at least six months vibration analysis experience and a thorough understanding of vibration theory and terminology. The course provides an in-depth study of machinery faults and their associated spectrum, time waveform and phase characteristics. Additional topics covered include: signal processing, data collection, and corrective actions.

Detailed description

*   Review of maintenance practices

*   Review of condition monitoring technologies

*   Principles of vibration
         Complete review of basics
         Waveform, spectrum (FFT), phase and orbits
         Understanding signals: modulation, beating, sum/difference

*   Date Acquisition
         Transducer types: non-contact displacement proximity probes, velocity 
         sensors, and accelerators
         Transducer selection
         Transducer mounting and natural frequency
         Measurement point selection
         Common measurement errors

*   Signal processing
         Filters: low pass, band pass, high pass, band stop
         Sampling, aliasing, dynamic range
         Resolution, Fmax, data collection time
         Averaging: linear, overlap, peak hold, time synchronous
         Windowing and leakage

*   Vibration analysis
         Spectrum analysis
            Harmonics, sidebands, and the analysis methology
         Time waveform analysis
         Orbit analysis (introduction)
         Phase analysis: bubble programs and ODS
         Enveloping (demodulation), shock pulse, spike energy, peak vue

*   Fault analysis
         Natural frequencies and resonances
         Imbalance, eccentricity and bent shalf
         Misalignment, cocked bearing and soft foot
         Mechanical looseness
         Rolling element bearing analysis
         Analysis of induction motors
         Analysis of gears
         Analysis of belt driven machines
         Analysis of pumps, compressors and fans
         Lots of case studies and exercises for participants

*   Equipment testing diagnosis
         Impact testing (bump test)
         Phase analysis

*   Corrective action
         General maintenance repair activities
         Review of the balancing process
         Review of shaft alignment procedures

*   Runninga successful condition monitoring program
         Setting baselines
         Setting alarms: band, envelope/mask, statistical
         Setting goals and expections
         (avoiding common problems)
         Report generation
         Reporting success stories

*   Acceptance testing

*   Review of ISO standards