BS ISO 14839-2:2004
Current
The latest, up-to-date edition.
Mechanical vibration. Vibration of rotating machinery equipped with active magnetic bearings Evaluation of vibration
Hardcopy , PDF
English
13-10-2004
Important note : Users cannot be edited or removed once added to your Multi user PDF.
1 Scope
2 Normative references
3 Measurement and evaluation procedures
4 Evaluation criteria
Annex A (informative) Case study on an LP centrifugal
compressor equipped with active magnetic bearings
(AMBs)
Annex B (informative) Case study on current evaluation
Annex C (informative) Voltage saturation
Bibliography
Provides general guidelines for measuring and evaluating rotating machinery equipped with active magnetic bearings (AMBs) with respect to the following two indices: shaft vibratory displacement measured at or close to the AMBs; and working current and voltage measured in magnetic coils or power supply amplifiers.
| Committee |
GME/21/5
|
| DevelopmentNote |
Supersedes 03/303213 DC. (10/2004)
|
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This part of ISO14839 sets out general guidelines for measuring and evaluating rotating machinery equipped with active magnetic bearings (AMBs) with respect to the following two indices:
-
shaft vibratory displacement measured at or close to the AMBs, and
-
working current and voltage measured in magnetic coils or power supply amplifiers.
Both indices are measured under nominal operating conditions in house and/or on site. These guidelines are presented in terms of both steady-state running values of these indices and any magnitude changes which may occur in these steady-state operations.
This part of ISO14839 is applicable to industrial rotating machines generating or consuming nominal power greater than 15kW, and is not limited by size or operational rated speed (i.e. comprising turbo-compressors, turbo-pumps, steam turbines, turbo-generators, turbo-fans, electric drives and other rotors supported by AMBs). This part of ISO14839 establishes the vibration, current and voltage evaluation of the rotating machinery equipped with AMBs, specified by a comparatively large power capacity as described above, excluding small-scale rotors such as turbo-molecular pumps, spindles and flywheels.
This part of ISO14839 covers both AMB-equipped rigid rotors and AMB-equipped flexible rotors.
| Standards | Relationship |
| ISO 14839-2:2004 | Identical |
| ISO 7919-4:2009 | Mechanical vibration Evaluation of machine vibration by measurements on rotating shafts Part 4: Gas turbine sets with fluid-film bearings |
| ISO 7919-2:2009 | Mechanical vibration Evaluation of machine vibration by measurements on rotating shafts Part 2: Land-based steam turbines and generators in excess of 50 MW with normal operating speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min and 3 600 r/min |
| ISO 10814:1996 | Mechanical vibration Susceptibility and sensitivity of machines to unbalance |
| ISO 7919-1:1996 | Mechanical vibration of non-reciprocating machines Measurements on rotating shafts and evaluation criteria Part 1: General guidelines |
| ISO 7919-5:2005 | Mechanical vibration Evaluation of machine vibration by measurements on rotating shafts Part 5: Machine sets in hydraulic power generating and pumping plants |
| API 617 : 2014 | AXIAL AND CENTRIFUGAL COMPRESSORS AND EXPANDER-COMPRESSORS |
| ISO 7919-3:2009 | Mechanical vibration — Evaluation of machine vibration by measurements on rotating shafts — Part 3: Coupled industrial machines |
| ISO 10439:2002 | Petroleum, chemical and gas service industries Centrifugal compressors |
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