Time and Frequency Analysis I
Display, use, and analysis of time domain, FFT analysis, modulation, clipping, pulsation, beats, side bands, spectrum shape, synchronous and nonsynchronous signals, and case histories.
Phase and Orbit Analysis
Phase measurement and analysis, orbit evaluation, loop rules, orbit analysis, case histories.
Workshop I: Machinery Vibration Analysis Techniques
Resonance and Critical Speed Testing
Interference diagrams, analyzer setup for impact and transient tests, test procedures, Bodé/polar plot evaluation, case histories.
Machine Condition Evaluation
Criteria, levels, maintenance actions, standards, evaluation of overall band, spectral, orbital, and time waveform, setting alarms, and examples.
Basic Vibration Control
Isolation, damping, resonance elimination, concepts, hardware, foundations, and pedestals.
Field Balancing Techniques
Single-plane, trial weight size and location, balance sensitivity, and phase lag.
Workshop II: Balancing Exercises
Workshop III: Vibration Control and Correction
Objectives, program development, permanent and periodic monitoring, and alternative techniques.
Rolling Element Bearing Analysis
Analytic techniques, identification of defects on balls/cages/races, corrosion, fatigue, excessive clearance, lack of lubrication, demodulation methods, condition evaluation.
Operating Speed Diagnostics
Unbalance, sub-synchronous instability, coupling problems, misalignment, oil whirl/whip, mechanical looseness, rubs, rotor bow, resonance, fluid-film bearings, and condition evaluation.
Pumps, Fans, Blowers, and Compressors
Pump impeller/casing/piping vibrations, natural frequencies, clearances, re-circulation, cavitation, performance curves, impellers, casings, shafts, foundations, isolated bases, piping, ducting, structural/acoustic resonance.
Workshop IV: Machine Analysis
Motor and Generator Diagnostics
Mechanisms, vibration/current measurements, stator/rotor faults, shorted end rings, broken rotor bars, air-gap variation, and variable-speed motors.
Gears and Gearboxes
Measurement and analysis, gear mesh, cracked/broken/chipped teeth, gearbox evaluation.
Workshop V: Fault and Condition Exercises
Training Examination on Course Content (2 hours)
Training Examination Review