VCAT-II CANDIDATE PROFILE
This course is intended for the vibration analyst who will:
- Collect vibration data
- Validate that the data is good
- Set up the analyzer for routine data collection and special tests
- Diagnose most of the common fault conditions
- Perform special tests to validate unbalance, misalignment, resonance, looseness, and other conditions
- Know how to perform precision shaft alignment and balancing
- Use the training and certification as the next step in a rewarding career as a vibration analyst
Duration
38 hours, typically over five days
Compliance
- Training: ISO 18436-2
- Certification: ISO 18436-2, ISO/IE 17024
Exam
- 3 hours
- 100 multiple-choice questions
- 70% passing grade
- Can be taken online or in-person at the course
Certification requirements
- Training course completed
- 18-months of practical vibration analysis work experience, verified by supervisor/manager
- Pass the exam
- Valid for 5 years
What will you gain from taking this course?
There is a great deal to learn, but it will help you to perform your role with confidence. In this course you will:
- Increase your knowledge on maintenance practices, condition monitoring, and the common condition monitoring technologies
- Increase your knowledge about data collection, testing techniques, sensor types, and so on
- Learn a great deal about signal processing and the settings of your vibration analyzer
- Increase your knowledge of spectrum analysis, time waveform analysis, and phase analysis
- Understand why phase analysis and time waveform analysis are both critical tools used by the vibration analyst
- Learn common failure modes and how to detect them, including unbalance, misalignment, looseness, resonance, pump/fan/compressor vane, and flow issues, cavitation, turbulence, gearbox failures, rolling element bearing failure, and more
- Learn high-frequency bearing and gear fault detection techniques: demodulation, enveloping, shock pulse, PeakVue, Spike Energy, and others
- Be able to use spectra, phase readings, time waveforms, bump and impact tests, to test for looseness, resonance, and other conditions
- Learn precision shaft alignment and soft foot correction
- Learn single and two-plane balancing
- Learn the basics of setting alarm limits: band alarms, and mask/envelope alarms
Pre-study
- Access to the Learning Zone upon registration and payment. For online distance learning, access to the learning platform for four months from registration and payment
- Complete set of videos covering every topic
Post-study
- Continue to access the Learning Zone 4 months after the course completion or upgrade for a lifetime with Lifelong Learning (LLL)
- Continue learning for free on WWW.MOBIUSCONNECT.COM with online forums, webinars, tutorials, etc.
TOPICS COVERED - CATEGORY II
Review of maintenance practices
Review of condition monitoring technologies
Principals of vibration
- Complete review of basics
- Waveform, spectrum (FFT), phase and orbits
- Understanding signals: modulation, beating, sum/difference
Data acquisition
- Transducer types: Non-contact displacement Proximity probes, velocity sensors, and accelerometers
- Transducer selection
- Transducer mounting and natural frequency
- Measurement point selection
- Following routes, and test planning
- 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 • Time waveform analysis (introduction)
- Orbit analysis (introduction)
- Phase analysis: bubble diagrams and ODS
- Enveloping (demodulation), shock pulse, spike energy, PeakVue
Fault analysis
- Natural frequencies and resonances
- Unbalance, eccentricity and bent shaft
- 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
Equipment testing and diagnostics
- Impact testing and bump tests
- Phase analysis
Corrective action
- General maintenance repair activities
- Review of balancing process
- Review of shaft alignment
Setting alarm limits
- Setting baselines
- Setting alarms: band, envelope/mask, statistical
Acceptance testing
Review of relevant ISO standards