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2. Preliminaries to monitoring
Before carrying out the measurements on the machines, it is essential to carefully prepare the route according to your objectives. This should result in :
a choice of machines to be monitored ;
precise knowledge of these machines;
a choice of the number and location of measurements carried out on each machine.
2.1 VIS" machine classification
In order to avoid unnecessary monitoring of machines that are not of vital importance, manufacturers often establish the following classification:
Vital machines: unduplicated machines whose failure brings production to a halt. Restoration costs and...
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Noise and vibration
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Preliminaries to monitoring
Monitoring tools
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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