ISO INTERNATIONAL STANDARD 10846-2 Second edition 2008-08-15 Acoustics and vibration Laboratory measurement of vibro-acoustic transfer properties of resilient elements - Part 2: Direct method for determination of the dynamic stiffness of resilient supports for translatory motion Acoustique et vibrations-Mesurage en laboratoire des proprietes de transfert vibro-acoustique des élements élastiques Partie 2: Methode directe pour la determination de la raideur dynamique entranslationdessupportsélastiques Reference number ISO 10846-2:2008(E) @ISO2008 Copyright Intern ational Organization for Standardization ISO10846-2:2008(E) PDFdisclaimer 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 noliabilityinthisarea. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file 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. COPYRIGHTPROTECTEDDOCUMENT ?ISO2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or isO's memberbody in the country of the requester. ISO copyright office Casepostale56.CH-1211Geneva20 Tel.+ 4122749 0111 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published inSwitzerland @ ISO 2008 -All rights reserved without license from IHS Not for Resale ISO 10846-2:2008(E) Contents Page Foreword. iv Introduction 1 Scope 2 Normative references 3 Terms and definitions.. 4 Principle... 6 5 Requirements for apparatus. 6 5.1 Normal translations.. 5.2 Transversetranslations 5.3 Suppression of unwanted vibrations... 11 6 Criteria for adequacy of the test arrangement. 12 6.1 Frequency range. 12 6.2 Measurement of blocking force.... 12 6.3 Flanking transmission..... 13 6.4 Unwanted input vibrations. 13 6.5 Accelerometers... 14 6.6 Force transducers. 14 6.7 Summation of signals... 14 6.8 Analysers.. 15 Test procedures.. 15 7.1 Installation of the test elements.. 15 7.2 Selection of force measurement system and output-force distribution plates 15 7.3 Mountingand connectionof accelerometers.... 15 7.4 Mounting and connections of the vibration exciter. 16 7.5 Source signal .. 16 7.6 Measurements.... 16 7.7 Test for linearity.. 17 8 Evaluation of test results... .18 8.1 Calculationofdynamictransferstiffness.. 18 8.2 One-third-octave-band values of thefrequency-averaged dynamic transfer stiffness 18 8.3 Presentation of one-third-octave-band results... 19 8.4 Presentationofnarrow-banddata.... 20 6 Information to berecorded 21 10 Test report 22 AnnexA(informative)Staticload-deflectioncurve Annex B(informative)Measurement uncertainty .24 Bibliography .28 CopyrightInternatinalOrganizationfrstandardizaion'ghtsreserved ii se fromIHS Not for Resa