IEC 60068-2-85:2019
(Main)Environmental testing - Part 2-85: Tests - Test Fj: Vibration - Long time history replication
Environmental testing - Part 2-85: Tests - Test Fj: Vibration - Long time history replication
IEC 60068-2-85:2019 demonstrates the adequacy of specimens to resist dynamic loads without unacceptable degradation of its functional and/or structural integrity when subjected to the specified vibration test requirements as defined by a time history (long time history replication). These can either be recorded in measurement exercises or generated artificially. In both cases, this method allows for generating a test tailored to very specific applications.
Essais d'environnement - Partie 2-85 : Essais - Essai Fj: Vibrations - Reproduction dans le temps par accélérogrammes
L'IEC 60068-2-85:2019 a pour objet de démontrer la capacité des spécimens à résister aux charges dynamiques sans dégradation inacceptable de leur intégrité de fonctionnement et/ou de structure, lorsqu'ils sont soumis aux exigences d'essais de vibrations spécifiées, définies par un accélérogramme (reproduction des vibrations dans le temps). Ces vibrations peuvent être enregistrées lors de sessions de mesure ou être générées artificiellement. Dans les deux cas, cette méthode permet de réaliser un essai adapté à des applications bien spécifiques.
General Information
Standards Content (Sample)
IEC 60068-2-85 ®
Edition 1.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-85: Tests – Test Fj: Vibration – Long time history replication
Essais d'environnement –
Partie 2-85: Essais – Essai Fj: Vibrations – Reproduction dans le temps par
accélérogrammes
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IEC 60068-2-85 ®
Edition 1.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-85: Tests – Test Fj: Vibration – Long time history replication
Essais d'environnement –
Partie 2-85: Essais – Essai Fj: Vibrations – Reproduction dans le temps par
accélérogrammes
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.040 ISBN 978-2-8322-7079-0
– 2 – IEC 60068-2-85:2019 © IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Requirements for test apparatus . 9
4.1 General . 9
4.2 Basic motion . 9
4.3 Cross-axis motion . 9
4.4 Mounting . 10
4.5 Measuring systems . 10
5 Severities . 10
6 Preconditioning . 10
7 Initial measurements and functional performance test. 10
8 Testing . 10
8.1 General . 10
8.2 Initial vibration response investigation . 11
8.3 Low-level excitation for equalization prior to testing . 12
8.4 Testing with specimen functioning . 12
8.5 Final vibration response investigation . 12
9 Recovery . 12
10 Final measurements and functional performance . 13
11 Information to be given in the relevant specification . 13
12 Information to be given in the test report. 13
Annex A (informative) Guidance . 15
A.1 General . 15
A.2 Requirements for testing . 15
A.2.1 Single-point control . 15
A.2.2 Controlled input testing . 16
A.2.3 Controlled response testing . 16
A.2.4 Verification parameters . 16
A.3 Testing procedures . 18
A.4 Equipment normally used with vibration isolators . 18
A.4.1 Transmissibility factors for isolators . 18
A.4.2 Temperature effect . 18
A.5 Test severities . 18
A.6 Equipment performance . 18
A.7 Initial and final measurements . 19
A.8 Frequency range . 19
Bibliography . 21
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENVIRONMENTAL TESTING –
Part 2-85: Tests – Test Fj: Vibration –
Long time history replication
FOREWORD
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International Standard IEC 60068-2-85 has been prepared by IEC technical committee 104:
Environmental conditions, classification and methods of test.
The text of this International Standard is based on the following documents:
FDIS Report on voting
104/833/FDIS 104/840/RVD
Full information on the voting for the
...
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