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  • 12/30265145 DC : 0

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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

    Available format(s):  Hardcopy, PDF

    Superseded date:  31-08-2013

    Language(s):  English

    Published date: 

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    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

    General Product Information - (Show below) - (Hide below)

    Comment Closes On
    Committee GME/21/5
    Document Type Draft
    Publisher British Standards Institution
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    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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