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Normas DIN – AENOR
DIN ISO 7919-3:2018-01

DIN ISO 7919-3:2018-01

Mechanical vibration - Evaluation of machine vibration by measurements on rotating shafts - Part 3: Coupled industrial machines (ISO 7919-3:2009 + Amd.1:2017)

Vibrations mécaniques - Évaluation des vibrations des machines par mesurages sur les arbres tournants - Partie 3: Machines industrielles couplées (ISO 7919-3:2009 + Amd.1:2017)

Mechanische Schwingungen - Bewertung der Schwingungen von Maschinen durch Messungen an rotierenden Wellen - Teil 3: Gekuppelte industrielle Maschinen (ISO 7919-3:2009 + Amd.1:2017)

Fecha:
2018-01 /Active
Equivalencias internacionales:

ISO 7919-3 AMD 1 (2017-07)

ISO 7919-3 (2009-02)

Relación con otras normas DIN:
Resumen:
This standard provides specific guidance for assessing the severity of radial vibration measured on the shafts of coupled industrial machines with fluid-film bearings in situ. It applies to coupled industrial machines with fluid-film bearings, having maximum continuous rated speeds in the range 1000 r/min to 30000 r/min and not being limited by size and power (with certain restrictions), comprising - steam turbines and generators with outputs less than or equal to 40 MW; - steam turbines and generators with outputs greater than 40 MW and speeds other than 1500 r/min, 1800 r/min, 3000 r/min or 3600 r/min (although generators seldom fall into this category); - rotary compressors; - industrial gas turbines with outputs less than or equal to 3 MW; - turbofans; - electric drives and associated gears, where relevant; - rotodynamic pumps (turbo pumps). Two criteria are provided for assessing the machine vibration when operating under steady state conditions. One criterion considers the magnitude of the observed vibration; the second considers changes in the magnitude. In addition, different criteria are provided for transient operating conditions, such as run-up and coast-down. The evaluation procedures presented in this part of ISO 7919 are based on broad-band measurements. The following are excluded from this part of ISO 7919: - steam turbines and/or generators with outputs greater than 40 MW and speeds of 1500 r/min, 1800 r/min, 3000 r/min or 3600 r/min (see ISO 20816-2); - gas turbine sets with outputs greater than 3 MW (see ISO 7919-4 and ISO 20816-2); - machine sets in hydraulic power generating and pump-storage plants (see ISO 20816-5); - rotodynamic pumps including integrated electric motors, i.e. where the impeller is mounted directly on the motor shaft or is rigidly attached to it (see ISO 10816-7); - submerged motor-pumps; - reciprocating pumps; - rotary positive displacement compressors (e. g. screw compressors); - reciprocating compressors; - wind turbines.
Keywords:
Acoustics, Coupled, Coupling, Estimation, Evaluations, Generating sets, Industrial, Industrial machines, Machines, Measurement, Measuring techniques, Rotary engines, Rotating machines, Shafts (rotating), Steam turbines, Steam turbo sets, Testing, Turbine sets, Vibration, Vibration engineering, Vibration measurement, Vibration tests
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