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ISO DIS 20816-1 2015 Edition, September 24, 2015 MECHANICAL VIBRATION - MEASUREMENT AND EVALUATION OF MACHINE VIBRATION - PART 1: GENERAL GUIDELINES
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Description / Abstract:
This part of ISO 20816 establishes general conditions and
procedures for the measurement and evaluation of vibration using
measurements made on rotating, nonrotating, and non-reciprocating
parts of complete machines. It is applicable to measurements of
both absolute and relative radial shaft vibration with regard to
the monitoring of radial clearances, but excludes axial shaft
vibration. The general evaluation criteria, which are presented in
terms of both vibration magnitude and change of vibration, relate
to both operational monitoring and acceptance. They have been
provided primarily with regard to securing reliable, safe, Iongterm
operation of the machine while minimizing adverse effects on
associated equipment. Guidelines are also presented for setting
operational limits.
NOTE 1 Evaluation criteria for different classes of machinery
will be included in other parts of ISO 20816 when they become
available. In the meantime, guidelines are given in Clause 5.
NOTE 2 The term "shaft vibration" is used throughout ISO 20816
because, in most cases, measurements are made on machine shafts.
However, ISO 20816 is also applicable to measurements made on other
rotating elements if such elements are found to be more suitable,
provided that the guidelines are respected.
For the purposes of ISO 20816, operational monitoring is
considered to be those vibration measurements made during the
normal operation of a machine. ISO 20816 permits the use of
different measurement quantities and methods, provided that they
are well defined and their limitations are set out, so that the
interpretation of the measurements is well understood.
The evaluation criteria relate only to the vibration produced by
the machine itself and not the vibration transmitted to it from
outside.
This part of ISO 20816 does not include consideration of
torsional vibration