4 days MTM/PAVIB-E
- Supervisors and technical staff involved in the inspection and maintenance of rotating equipment.
- To provide the tools for evaluating machinery operating problems.
- To impart the knowledge and methods necessary for the organization and implementation of an efficient predictive maintenance program.
- To explain the capacity and limitations of different types of measurement devices: sensors, analyzers, software, etc.
- To recognize typical signatures of the most common mechanical defects.
- To decide the kind of signal treatments to apply in order to produce evidence of a specific defect and evaluate its severity.
- To implement a maintenance schedule for each machine, based on the type of machine and its importance in the production process.
Ways and means
- Study of industrial situations.
- Various illustrations of actual systems.
- Use of professional measurement software and/or test benches (when available).
- The practical approach makes the course suitable for full-time vibration specialists.
Basic definitions - Overall measurements 0.75 day
- Frequency and amplitude.
- Displacement, velocity, acceleration.
- Different types of vibration: periodic, random, shocks.
- Overall measurements: their limitations, severity charts, high frequency techniques for anti-friction bearings, practical recommendations.
Resonance 0.5 day
- Simple system behavior: amplitude and phase.
- Actual rotor and bearings systems.
- Critical speeds.
- Using phase to study resonance.
- Identifying and solving problems.
Tools for diagnosis 0.5 day
- FFT analyzers: Fourier transforms and actual plots
- Accelerometers, fixation methods
- Selecting analysis parameters: scales, units, windows
- Using special functions: zoom, cepstrum, envelope detection
- Using non-contacting probes for monitoring large machinery running on plain or tilt-pad bearings
Machinery defects and vibration signature 2 days
- Shaft and coupling misalignment.
- Antifriction bearings - Typical defaults.
- Plain or tilt pad bearings instabilities.
- Mechanical looseness, cracks, friction between rotor and stationary parts.
- Gears defaults.
- Electromagnetic defects of induction electric motors.
- Drive belt vibration.
Practical machinery vibration monitoring 0.25 day
- Vibration control policy: machinery improvement program.
- Different policies according to the type of machinery and its criticity.
- Developing an effective program: cooperation between specialists, mechanics and operators.