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1. Fundamental principles
1.1 Equipment and measurements
For further details, please refer to the section on "Necessary study resources" in .
Ideally, the measurement equipment records the raw vibration signal. Depending on the needs of the analysis, indicators calculated from this signal are then defined. The evolution of these indicators provides information on machine wear.
Measuring and storing the raw vibration signal is unfortunately not possible with today's equipment. This means that the technician has to plan the various indicators required to meet the objectives right from the start of the monitoring tour.
The quality of the subsequent analysis depends to a large extent on the care taken in preparing the round...
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Noise and vibration
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Fundamental principles
Preliminaries to monitoring
Bibliography
Software
Main analysis software available :
SENTINEL - (Bruël and Kjaer)
SURVAODIAG - (Steel Diagnostic)
Standardization
International Organization for Standardization (ISO)
- Vibrations mécaniques. Évaluation des vibrations des machines par mesurages sur les parties non tournantes. Partie 1 : Directives générales Partie 2 : Turboalternateurs installés sur fondation radier, excédant 50 MW Partie 3 : Machines industrielles de puissance nominale supérieure à 15 kW et de vitesse nominale entre 120 tr/min et 15 000 tr/min, lorsqu'elles sont...
Appendice
1. Mathematical background
1.1. Vibration: quantification, vocabulary
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Quantification
Like any movement, vibrations recorded during routes can be quantified by three fundamental quantities:
travel ;
the speed of this displacement ;
the acceleration...
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