12/30265145 DC : 0

Superseded

View Superseded by

BS ISO 21940-31 - MECHANICAL VIBRATION - ROTOR BALANCING - PART 31: SUSCEPTIBILITY AND SENSITIVITY OF MACHINES TO UNBALANCE

Available format(s)

Hardcopy , PDF

Superseded date

08-31-2013

Language(s)

English

Publisher

British Standards Institution

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Status	Superseded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	BS ISO 21940-31:2013

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