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BS ISO 20816-2:2017 Mechanical vibration. Measurement and evaluation of machine vibration - Land-based gas turbines, steam turbines and generators in excess of 40 MW, with fluid-film bearings and rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min and 3 >
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BS ISO 20816-2:2017 Mechanical vibration. Measurement and evaluation of machine vibration - Land-based gas turbines, steam turbines and generators in excess of 40 MW, with fluid-film bearings and rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min and 3, 2017
- National foreword
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Measurement procedures
- 4.1 General
- 4.2 Measurements of vibration of non-rotating parts
- 4.3 Measurements of vibration of rotating shafts
- 5 Evaluation criteria
- 5.1 General
- 5.2 Criterion I: Vibration magnitude
- 5.2.1 General
- 5.2.2 Vibration magnitude at rated speed under steady-state operating conditions
- 5.2.3 Operational limits for steady-state operation
- 5.2.4 Vibration magnitude during non-steady-state conditions (transient operation)
- 5.3 Criterion II: Change in vibration magnitude under steady-state conditions at rated speed
- 5.4 Supplementary procedures/criteria
- 5.5 Evaluation based on vibration vector information
- Annex A (normative) Evaluation zone boundaries for vibration of non-rotating parts
- Annex B (normative) Evaluation zone boundaries for vibration of rotating shafts
- Annex C (informative) Example of setting ALARM and TRIP values
- Annex D (informative) Cautionary notes about the use of vibration velocity criteria at low rotational speeds
- Annex E (informative) Evaluation zone boundary limits and bearing clearance
- Bibliography [Go to Page]
