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2003 Edition, December 17, 2003

Complete Document

AMERICAN NATIONAL STANDARD Guide for the Measurement and Evaluation of Vibration of Machine Shafts on Shipboard Machinery

Includes all amendments and changes through Reaffirmation Notice , January 17, 2019

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Product Details:

  • Revision: 2003 Edition, December 17, 2003
  • Published Date: January 17, 2019
  • Status: Active, Most Current
  • Document Language: English
  • Published By: Acoustical Society of America (ASA)
  • Page Count: 15
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

This American National Standard gives guidelines for applying shaft vibration evaluation criteria, under normal operating conditions, measured at or close to the bearings of some types of non-reciprocating shipboard machinery. These guidelines are presented in terms of both steady vibration amplitudes and changes in amplitudes which may occur in these steady values. 


The purpose of this standard is to provide specific guidance for assessing the severity of vibrations measured on rotating shafts of large shipboard machines with fluid film bearings, whenever such measurements are required, so as to insure smooth operation from the standpoint of mechanical suitability. 


This part applies to large shipboard machines with oil film bearings, such as main propulsion turbines and gears, and turbo-generators. It does not apply to machines with rolling element bearings. Machinery specifications should state when the measurement of relative shaft vibration is required. These guidelines apply to acceptance tests for new machinery, and in-situ testing for monitoring purposes.