Name: BS ISO 21940-12:2016
Brand: BSI

Mechanical vibration. Rotor balancing Procedures and tolerances for rotors with flexible behaviour

Published date

04-30-2016

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Fundamentals of dynamics and balancing of
  rotors with flexible behaviour
5 Rotor configurations
6 Procedures for balancing rotors with flexible
  behaviour at low speed
7 Procedures for balancing rotors with flexible
  behaviour at high speed
8 Evaluation criteria
9 Evaluation procedures
Annex A (informative) - Cautionary notes concerning
        rotors when installed in-situ
Annex B (informative) - Optimum planes balancing - Low-speed
        three-plane balancing
Annex C (informative) - Conversion factors
Annex D (informative) - Example calculation of equivalent
        residual modal unbalances
Annex E (informative) - Procedures to determine whether
        a rotor shows rigid or flexible behaviour
Annex F (informative) - Method of computation of unbalance
        correction
Bibliography

Defines typical configurations of rotors with flexible behaviour in accordance with their characteristics and balancing requirements, describes balancing procedures, specifies methods of assessment of the final state of balance, and establishes guidelines for balance quality criteria.

Committee	GME/21/5
DevelopmentNote	Supersedes BS ISO 11342 & 15/30311781 DC. (04/2016)
DocumentType	Standard
PublisherName	British Standards Institution
Status	Current
Supersedes	15/30311781 DC : 0 BS ISO 11342:1998

Standards	Relationship
ISO 21940-12:2016	Identical

ISO 21940-14:2012	Mechanical vibration — Rotor balancing — Part 14: Procedures for assessing balance errors
ISO 2041:2009	Mechanical vibration, shock and condition monitoring Vocabulary
ISO 1925:2001	Mechanical vibration Balancing Vocabulary
ISO 21940-32:2012	Mechanical vibration — Rotor balancing — Part 32: Shaft and fitment key convention