ISO INTERNATIONAL STANDARD 8568 Second edition 2007-07-01 Mechanical shock Testing machines Characteristics and performance Chocs mécaniques - Machines d'essai Caractéristiques et performance Reference number ISO 8568:2007(E) @ISO2007 ISO 8568:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF fle can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTED DOCUMENT ?ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland = @ ISO 2007 - All rights reserved ISO 8568:2007(E) Contents Page Foreword 1 Scope 2 Normative references 3 Terms and definitions. 4 Performance 4.1 General. 4.2 Operation principles. 4.3 Test types .... 4.4 Shock-testing machine components. 5 Shock-testing machine specification 6 Requirements for shock-testing machines.. 6.1 General.... 6.2 Safety requirements 6.3 Table or carriage. 6.4 Hoisting or pre-loading ... 6.5 Braking systems ... 6.6 Reactionmass.... 6.7 Shock pulse-shaping devices and methods 7 Inspection of a shock-testing machine . 7.1 General.... 7.2 Preparation procedure ... 7.3 Example of an inspection procedure for a shock-testing machine operation Annex A (informative) Devices for shaping various pulse shapes ... 10 Annex B (informative) Shock-response spectra, shock synthesis and analysis .. Annex C (informative) Use of a vibration generator for producing a shock pulse.. Annex D (normative) Determination of uniformity of acceleration and relative transverse motion on the table of a shock-testing machine ... 20 Annex E (normative) Stray magnetic field. Bibliography 23 @Is0 2007-All rights reserved ii ISO 8568:2007(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been non-governmental,inliaisonwithIsO,also take partin the work.Iso collaborates closely withthe International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 8568 was prepared by Technical Committee ISO/TC 108, Mechanical vibration, shock and condition monitoring, Subcommittee Sc 6, Vibration and shock generating systems. This second edition cancels and replaces the first edition (isO 8568:1989), which has been technically revised @ ISo 2007 - All rights reserved INTERNATIONAL STANDARD ISO 8568:2007(E) Mechanical shock Testing machines Characteristics and performanc