BS-ISO-18437-3-2005.pdf
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1、BRITISH STANDARD BS ISO 18437-3:2005 Mechanical vibration and shock Characterization of the dynamic mechanical properties of visco-elastic materials Part 3: Cantilever shear beam method ICS 17.160 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 04:33:49 GMT+00:00 2006, Uncontrolled Copy, (c
2、) BSI BS ISO 18437-3:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 June 2005 BSI 14 June 2005 ISBN 0 580 46077 0 National foreword This British Standard reproduces verbatim ISO 18437-3:2005 and implements it as the UK national stand
3、ard. The UK participation in its preparation was entrusted by Technical Committee GME/21, Mechanical vibration and shock, to Subcommittee GME/21/5, Vibration of machines, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secre
4、tary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of Br
5、itish Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; pres
6、ent to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an insi
7、de front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 14, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun
8、 sheffieldun, na, Sun Nov 26 04:33:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 18437-3 First edition 2005-04-15 Reference number ISO 18437-3:2005(E) Mechanical vibration and shock Characterization of the dynamic mechanical properties of visco-elastic materials Part 3: Ca
9、ntilever shear beam method Vibrations et chocs mcaniques Caractrisation des proprits mcaniques dynamiques des matriaux visco-lastiques Partie 3: Mthode du faisceau par cisaillement en encorbellement BS ISO 18437-3:2005 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 04:33:49 GMT+00:00 2006, U
10、ncontrolled Copy, (c) BSI ii BS ISO 18437-3:2005 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 04:33:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Contents Page 1Scope 1 2Normative references 2 3Terms and definitions 2 4Test equipment (see Figure 1) 3 4.1Electro-dynamic vibration genera
11、tor . 3 4.2Force measurement 3 4.3Displacement transducer . 4 4.4Clamping system . 4 4.5Environmental chamber 5 4.6Computer . 5 5Operating procedure . 5 5.1Sample preparation and mounting 5 5.2Conditioning 6 5.3Cantilever shear beam analysis . 7 5.4Calibration and measurement 8 5.5Number of test pie
12、ces 8 5.6Temperature cycle . 8 6Analysis of results . 9 6.1Time-temperature superposition . 9 6.2Data presentation 9 6.3Test report 10 Annex A (informative) Linearity of resilient materials . 11 Annex B (informative) Time-temperature superposition 12 Bibliography . 14 BS ISO 18437-3:2005 Licensed Co
13、py: sheffieldun sheffieldun, na, Sun Nov 26 04:33:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv 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 c
14、arried out through ISO 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, governmental and non-governmental, in liaison with ISO, also take part in the wor
15、k. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare Inter
16、national Standards. Draft International Standards 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 th
17、e 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 18437-3 was prepared by Technical Committee ISO/TC 108, Mechanical vibration and shock. ISO 18437 consists of the following parts, under the general t
18、itle Mechanical vibration and shock Characterization of the dynamic mechanical properties of visco-elastic materials: Part 2: Resonance method Part 3: Cantilever shear beam method Part 4 (Impedance method) is under preparation. BS ISO 18437-3:2005 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov
19、26 04:33:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI v Introduction Visco-elastic materials are used extensively to reduce vibration magnitudes in structural systems through the dissipation of energy (damping) or isolation of components, and in acoustical applications that require a modification o
20、f the reflection, transmission, or absorption of energy. Such systems often require specific dynamic mechanical properties in order to function in an optimum manner. Energy dissipation is due to interactions on the molecular scale and is measured in terms of the lag between stress and strain in the
21、material. The visco-elastic properties (modulus and loss factor) of most materials depend on frequency, temperature and strain magnitude. The choice of a specific material for a given application determines the system performance. The goal of this part of ISO 18437 is to provide details on the princ
22、iple of operation of a cantilever shear beam method that avoids common clamping errors through the use of fixed ends, the measurement equipment, in performing the measurements, and analysing the resultant data. A further intent is to assist users of this method and to provide uniformity in the use o
23、f this method. This part of ISO 18437 applies to the linear behaviour observed at small strain magnitudes. BS ISO 18437-3:2005 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 04:33:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank BS ISO 18437-3:2005 Licensed Copy: sheffieldun sheffieldun,
24、na, Sun Nov 26 04:33:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Mechanical vibration and shock Characterization of the dynamic mechanical properties of visco-elastic materials Part 3: Cantilever shear beam method 1Scope This part of ISO 18437 defines a cantilever shear beam method for determini
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