ISO INTERNATIONAL STANDARD 10055 First edition 1996-12-15 Mechanical vibration - Vibration testing requirements for shipboard equipment and machinery components Vibrations mécaniques - Exigences reguises pour les essais de vibrations des équipements de bord et des composants des machines ISO Reference number ISO10055:1996(E) without license from IHS Not for Resale ISO 10055:1996(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. international organizations, govern- mental and non-governmental, in liaison with IsO, also take part in the work.isO collaborates closelywith theInternational Electrotechnical Commission(lEC)onallmattersofelectrotechnicalstandardization. DraftInternational Standardsadopted bythetechnical committeesare circulated to the member bodies for voting. Publication as an Inter- national Standard requires approval by at least 75 % of the member bodies casting a vote International Standard iSO 10055 was prepared by Technical Committee iSO/TC 108, Mechanical vibration and shock, Subcommittee SC 2 Measurement and evaluation of mechanical vibration and shock as applied to machines, vehicles and structures. AnnexAofthisInternationalStandardisforinformationonly @1SO1996 All rights reserved. Unless otherwise specified, no part of this publication may be photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56. CH-1211 Geneve 20. Switzerland Printed in Switzerland CopyrightiIntemational Organizatin for Standardization ed without license from IHS Not for Resale @ ISO 1S0 10055:1996(E) Introduction All machinery installed aboard ship will ordinarily be subjected to a vibratory environment consisting of various frequencies and amplitudes and equipment must continue to function normally. Structural arrange- ments on board ships may result in machinery placed in areas which result in magnification of vibratory amplitudes and, therefore, many items imposed by the hull. is governed by the prime mover (such as a diesel engine) and by propeller and blade excitation (including harmonics). This range does not usually extend beyond 100 Hz. Vibration measurements for steady-state conditions are usually made in relatively quiet seas and during constant-speed operations. However, vibration values. Based on these considerations, the proposed test severities for vibration testingof shipboardequipment andmachinery components cannotbe interpreted as simulating normal environmental conditions, but as representing vibration values sufficiently large to obtain a reasonably high service life Copyriaht Intemational Oorganizatinfor Standardization ii Not for Resale