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AS 3764-1990

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

The measurement and reporting of shipboard vibration data
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Withdrawn date

30-06-2017

Language(s)

English

Published date

01-01-1990

Preview

Sets out procedures for gathering and presenting data on hull vibration in single-shaft and multiple-shaft sea-going merchant ships, and for vibrations of propulsion-shaft systems as it affects hull vibration. This Standard is technically identical to and reproduced from ISO 4867:1984.

This International Standard establishes uniform procedures for gathering and presenting data:a) on hull vibration in single or multiple-shaft sea-going merchant ships;b) for vibration of propulsion-shaft systems as it affects hull vibration.Such data are necessary to establish uniformly the vibration characteristics of hull and propulsion-shaft systems and to provide a basis for design predictions, improvements and comparison against vibration reference levels.The procedures, where applicable, can also be used for inland ships and tug boats. In special cases, where objectionable vibration is found to exist, specific investigative studies may be required.This International Standard is concerned with:a) vibration of the main hull girder and superstructure excited by the propulsion system- at shaft rotational frequency,- at propeller blade rate, harmonics of blade rate and- at frequencies associated with the major components of machinery;b) excitation of the propulsion shaft and main machinery system.It does not deal with other aspects of ship vibration at this time. Local vibration is dealt with in ISO 4868.Anchor drop-and-snub tests in calm water may be an effective means of obtaining the first few vertical hull modes of vibration and their damping constants (see warning in 4.5.5).Detailed design information on the ship is required to assist in developing empirical constants useful in evaluating the vibration of hull and machinery vibratory characteristics.This International Standard gives general principles of vibration measurement on board ships to improve vibration engineering. Therefore, in individual cases, items to be measured may be selected or added to meet the aims of the vibration measurement of each ship.

Committee
AV-008
DocumentType
Standard
ISBN
0 7262 6106 8
Pages
18
PublisherName
Standards Australia
Status
Withdrawn

Standards Relationship
ISO 4867:1984 Identical

AS 3762-1990 Measurement and reporting of local vibration data of ship structures and equipment
AS 3763-1990 Mechanical vibration and shock - Guidelines for the overall evaluation of vibration in merchant ships

AS 3763-1990 Mechanical vibration and shock - Guidelines for the overall evaluation of vibration in merchant ships
AS 3762-1990 Measurement and reporting of local vibration data of ship structures and equipment

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