Advanced Vibration Analysis - CAT IV
This course is targeted to solving complex vibration problems involving transient and forced vibrations, resonance, isolation and damping, advanced signal processing analysis, and torsional vibration analysis. This course is partial preparation for the ISO 18436-2:2014 Vibration Analyst Category IV Certification Exam.
Nov 10-13, 2020 Indianapolis, IN
Advanced Vibration Analysis
This course teaches a wide array of advanced vibration analysis techniques including two-channel analysis, advanced signal processing, modal analysis, operating deflection shape (ODS), synchronous time averaging, and torsional vibration. It is partial preparation for the ISO 18436-2:2014 Vibration Analyst Category IV Certification Exam. Workshops and demonstrations are scheduled throughout the training course to exemplify curricular theory and applications.
Course notes on signal processing and dual-channel analysis Workbook containing examples, workshop problems and the Body of Knowledge found in ISO 18436-2 Annex A.
Training course examination study guide
Certificate of completion
Tuesday – Friday, 8:00 a.m. – 5:00 p.m.
Optional Cat IV exam – Saturday, 8:00 a.m. – 12:00 p.m.
$2,395 USD Nonmember ($2300 VI Members)
$100 expidited materials fee for registrations received within 1 week of course starting.
RMS, coherent and non-coherent signals, peak detection, vector addition, filters, signal-to-signal noise ratio, and FFT calculations.
Workshop I: Signal Processing Introduction to the FFT A/D converters, dynamic range, FFT batch process, buffer fill times, averaging, and overlap.
Workshop II: FFT Basics and Filters FFT Topics Aliasing, windows, resolution, and demonstrations.
Workshop III: Aliasing, Windows, and Resolution FFT Accuracy Side-lobe areas; accuracy of rectangular, Hanning, and flat-top windows, window resolution, order spectra, correction of amplitude and frequency from bin location.
Workshop IV: Window Function and Order Spectra Beats and Modulation Time domain of digitized signals, beats, AM and FM modulation, suppressed carrier signals and enveloping, case histories.
Workshop V: Beats and Modulation
Time Series Averaging
Frequency synthesizers, averaging one signal and noise, averaging two signals, effect of synchronous time averaging on bearing defects and modulation, digital filers and the FFT as a brick wall filter, case histories of synchronous time averaging.
Workshop VI: Time Series Averaging Transient and Forced Harmonic Vibration Dual-Channel Basics Test methods, transfer functions, coherence, mass/spring model, real and imaginary displays, Nyquist and Bodé plots, basic mode shapes, and operating deflection shapes. Introduction to the Hilbert Transform
Workshop VII: Dual-Channel Analysis Damping Measurement and Calculation Half-power, real or imaginary plots, slope of phase shift, log decrement, dB decay of waterfall data, and demonstrations.
Workshop VIII: Damping Measurement Modal Testing Testing, analysis, natural frequencies, damping, and modes. Structural Measurements Vertical pumps, machine supports, floors, phase leads, turbine blades and fans, axial resonance on motors with sleeve bearings.
Workshop IX: Modal Testing
Training Examination Review
Training Examination on Course Content (2 hours)