Iso 2372 Vibration Standard

Iso 2372 Vibration Standard Iso 2372 Special techniques, which can indicate what the problem is at a more detailed level The raw data from a vibration transducer mounted on a test structure is obtained in time domain. The vibration signal in time domain is useful to the extent of finding out the overall vibration level.

Standard

ISO 2372-Vibration Severity Vibration Severity Range Limits (Velocity) From ISO 2372 Vibration Severity Ranges for Machines Belonging to: In/Sec (PK) MM/Sec (RMS) Class I 100 HP Class IV 100 HP 0.015 0.28 A A A A (Good) 0.025 0.45 0.039 0.71 B 0.062 1.12 B 0.099 1.80 C B 0.154 2.80 C B. Title: Vibration Standards Iso 2372 Author: OpenSource Subject: Vibration Standards Iso 2372 Keywords: vibration standards iso 2372, contents, garvin mgsb 3 metallic crescent electric supply company, 17 160 vibrations shock and vibration measurements iso, vibration meter, azima dli vibration reference, 2017 ashrae handbook fundamentals si pdf academia edu, surplus process equipment lab, iso. Iso 2372 Standard. Iso 2372 Vibration Standard. Special techniques, which can indicate what the problem is at a more detailed level The raw data from a vibration transducer mounted on a test structure is obtained in time domain. The vibration signal in time domain is useful to the extent of finding out the overall vibration level.

ISO 10816-1:1995

This standard has been revised by ISO 20816-1:2016

Abstract

Establishes the general conditions and procedures for the measurement and evaluation of vibration, using measurements made on the non-rotating parts of machines. The general evalution criteria relate to both operational monotoring and acceptance testing and have been established primarily with regard to securing reliable long-term operation of the machine. Replaces ISO 2372 and ISO 3945, which have been technically revised.


General information

  • Publication date : 1995-12
  • Number of pages : 19
  • :
    Measurement and evaluation of mechanical vibration and shock as applied to machines, vehicles and structures
  • ICS :
    Vibrations, shock and vibration measurements

Life cycle


  • Previously

  • Now

    ISO 10816-1:1995
    Stage: 95.99
    • 20
      Preparatory
    • 30
    • 40
      Enquiry
    • 50
      Approval
    • 60
      Publication
    • 90
      Review
    • 95
      Withdrawal
    Corrigenda / Amendments

  • Revised by

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Disclaimer: The author is not trying to present himself as an authority on all available CM standards. This blog post is simply an attempt to help those who may be unaware that such guidance exists or of the extent of such standards.

We previously introduced a series of international standards pertaining to condition monitoring of industrial equipment with vibration analysis in, This series ends with the numeric sequence of xx816-x. The original standards from 1974 (ISO 2372) and 1985 (ISO 3945) were replaced or superseded by ISO 10816-1 in 1995. 10816-1 was amended in 2009 and then replaced by ISO 20816-1 in 2016. Next (numerically) is the standard we also mentioned in our previous blog, 20816-2. The dash 2 standard covers the measurement and evaluation of vibration on large land-based gas or steam turbines and generators.

Standard

The subsequent standard in the series, the “dash 3” standard is the focus of this blog. This standard is titled:

INTERNATIONAL STANDARD ISO 10816-3

Mechanical vibration — Evaluation of machine vibration by measurements on non-rotating parts

Part 3: Industrial machines with nominal power above 15 kW and nominal speeds between 120 r/min and 15 000 r/min when measured in situ

ISO 10816-3 is the current standard in the series that covers a general range of equipment types and sizes. When first created it was the “catch-all” standard used for many types of machines (such as centrifugal pumps which are now covered by the dash 7 standard) that have since come to be covered by their own specific part of the series. The “10816” issuance of the dash 3 standard is still in force, but to be current it must be joined by a 2017 amendment, “Amendment 1”. This amendment actually modifies the scope of the standard, so it is critical to its being considered current.

The scope of this standard is quoted below from the ISO.org preview page (quotation in bold).

Iso 2372 Vibration Standards

Important Note: The scope shown in the preview cannot be considered current because it is modified by Amendment 1.

Scope:

Iso 2372 Vibration Standard Pdf

This part of ISO 10816 gives criteria for assessing vibration levels when measurements are made in situ. The criteria specified apply to machine sets having power above 15 kW and operating speeds between 120 r/min and 15 000 r/min.

The machine sets covered by this part of ISO 10816 include:

  • steam turbines with power up to 50 MW
  • steam turbine sets with power greater than 50 MW and speeds below 1 500 r/min or above 3 600 r/min (not included in ISO 10816-2)
  • rotary compressors
  • industrial gas turbines with power up to 3 MW
  • generators
  • electrical motors of any type
  • blowers or fans

NOTE: However, the vibration criteria presented in this part of ISO 10816 are generally only applicable to fans with power ratings greater than 300 kW or fans that are not flexibly supported. As and when circumstances permit, recommendations for other types of fans, including those with lightweight sheet metal construction, will be prepared. Until such time, classifications can be agreed upon between the manufacturer and the customer, using results of previous operational experience, see also ISO 14694[4].

The following are excluded from this part of ISO 10816:

  • land-based steam turbine generator sets with power greater than 50 MW and speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min, or 3 600 r/min (see ISO 10816-2)
  • gas turbine sets with power greater than 3 MW (see ISO 10816-4)
  • machine sets in hydraulic power generating and pumping plants (see ISO 10816-5)
  • machines coupled to reciprocating machines (see ISO 10816-6)
  • rotodynamic pumps including integrated electric motors, i.e. where the impeller is mounted directly on the motor shaft or is rigidly attached to it (see ISO 10816-7)
  • rotary positive displacement compressors (e. g. screw compressors)
  • reciprocating compressors
  • reciprocating pumps
  • submerged motor-pumps
  • wind turbines

The criteria of this part of ISO 10816 apply to in situ broad-band vibration measurements taken on the bearings, bearing pedestals, or housing of machines under steady-state operating conditions within the nominal operating speed range. They relate to both acceptance testing and operational monitoring. The evaluation criteria of this part of ISO 10816 are designed to apply to both continuous and non-continuous monitoring situations.

This part of ISO 10816 encompasses machines that may have gears or rolling element bearings but does not address the diagnostic evaluation of the condition of those gears or bearings.

The criteria are applicable only for the vibration produced by the machine set itself and not for vibration which is transmitted to the machine set from external sources.

To read the ISO’s preview of this standard, click here.