12/30265145 DC : 0
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BS ISO 21940-31 - MECHANICAL VIBRATION - ROTOR BALANCING - PART 31: SUSCEPTIBILITY AND SENSITIVITY OF MACHINES TO UNBALANCE
Hardcopy , PDF
English
31-08-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Machine susceptibility classification
5 Modal sensitivity
6 Experimental determination of modal sensitivity
near resonance speed under operational conditions
7 Numerical values for the local sensitivity
8 Experimental determination of the local sensitivity
9 Damped unbalance sensitivity analysis
Annex A (informative) - Explanations of terms
Annex B (informative) - Example of polar plot diagram
procedure
Annex C (informative) - Examples of classification
according to modal sensitivity
Annex D (informative) - Example of mathematical
model applied unbalance
Bibliography
BS ISO 21940-31.
| Committee |
GME/21/5
|
| DocumentType |
Draft
|
| Pages |
27
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| 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 1940-1:2003 | Mechanical vibration — Balance quality requirements for rotors in a constant (rigid) state — Part 1: Specification and verification of balance tolerances |
| ISO 1925:2001 | Mechanical vibration — Balancing — Vocabulary |
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