IEC 61373:2010

Railway applications - Rolling stock equipment - Shock and vibration tests

IEC 61373:2010 specifies the requirements for testing items of equipment intended for use on railway vehicles which are subsequently subjected to vibrations and shock owing to the nature of railway operational environment. To gain assurance that the quality of the equipment is acceptable, it has to withstand tests of reasonable duration that simulate the service conditions seen throughout its expected life. The main technical changes with regard to the previous edition are as follows:
- change of the method to calculate the acceleration ratio;
- addition of the notion of partially certified against this standard;
- addition of guidance for calculating the functional RMS value from service data or the RMS value from ASD levels.

Applications ferroviaires - Matériel roulant - Essais de chocs et vibrations

La CEI 61373:2010 spécifie les exigences d'essai des matériels destinés à être utilisés sur les véhicules ferroviaires soumis à des vibrations et à des chocs dus à la nature de l'environnement d'exploitation ferroviaire. Pour s'assurer que la qualité d'un matériel est acceptable, celui-ci doit résister à des essais d'une durée raisonnable qui simulent les conditions de service auxquelles il est exposé tout au long de sa vie. Les principaux changements techniques par rapport à l'édition précédente sont les suivants:
- changement de la méthode pour calculer le taux d'accélération;
- ajout de la notion de certification partielle par rapport à la norme;
- ajout de recommandations pour le calcul de la valeur efficace fonctionnelle à partir des données de service, ou de la valeur efficace à partir des niveaux d'ASD.

General Information

• Status: Published
• Publication Date: 30-May-2010
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: TC 9 - Electrical equipment and systems for railways
• Drafting Committee: MT 61373- - TC 9/MT 61373-
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jun-2010
• Completion Date: 31-May-2010

Relations

• Corrected By: IEC 61373:2010/COR1:2011 - Corrigendum 1 - Railway applications - Rolling stock equipment - Shock and vibration tests
• Effective Date: 05-Sep-2023
• Revises: IEC 61373:1999 - Railway applications - Rolling stock equipment - Shock and vibration tests
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61373 ®
Edition 2.0 2010-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Rolling stock equipment – Shock and vibration tests

Applications ferroviaires – Matériel roulant – Essais de chocs et vibrations

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IEC 61373 ®
Edition 2.0 2010-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Rolling stock equipment – Shock and vibration tests

Applications ferroviaires – Matériel roulant – Essais de chocs et vibrations

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
V
CODE PRIX
ICS 45.060 ISBN 978-2-88910-944-9
– 2 – 61373 © IEC:2010
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references.8
3 Terms and definitions .9
4 General .10
5 Order of testing.11
6 Reference information required by the test house.11
6.1 Method of mounting and orientation of equipment under test .11
6.2 Reference and check points.11
6.2.1 Fixing point.11
6.2.2 Check point .12
6.2.3 Reference point .12
6.2.4 Measuring point .12
6.3 Mechanical state and functioning during test .12
6.3.1 Mechanical state.12
6.3.2 Functional tests .13
6.3.3 Performance tests.13
6.4 Reproducibility for random vibration tests.13
6.4.1 Acceleration spectral density (ASD) .13
6.4.2 Root mean square value (r.m.s.) .13
6.4.3 Probability density function (PDF) .13
6.4.4 Duration.13
6.5 Measuring tolerances.14
6.6 Recovery .14
7 Initial measurements and preconditioning.14
8 Functional random vibration test conditions.14
8.1 Test severity and frequency range .14
8.2 Duration of functional vibration tests .15
8.3 Functioning during test .15
9 Simulated long-life testing at increased random vibration levels.15
9.1 Test severity and frequency range .15
9.2 Duration of accelerated vibration tests .15
10 Shock testing conditions .16
10.1 Pulse shape and tolerance.16
10.2 Velocity changes .16
10.3 Mounting .16
10.4 Repetition rate.16
10.5 Test severity, pulse shape and direction.16
10.6 Number of shocks.17
10.7 Functioning during test .17
11 Transportation and handling.17
12 Final measurements .17
13 Acceptance criteria .17
14 Report .17

61373 © IEC:2010 – 3 –
15 Test certificate.18
16 Disposal .18
Annex A (informative) Explanation of service measurements, measuring positions,
methods of recording service data, summary of service data, and method used to obtain
random test levels from acquired service data .
Annex B (informative) Figure identifying general location of equipment on railway
vehicles and their resulting test category .32
Annex C (informative) Example of a type test certificate .33
Annex D (informative) Guidance for calculating RMS values from ASD values or levels.34

Figure 1 – Gaussian distribution .9
Figure 2 – Category 1 – Class A – Body-mounted – ASD spectrum .19
Figure 3 – Category 1 – Class B – Body-mounted – ASD spectrum .20
Figure 4 – Category 2 – Bogie mounted – ASD spectrum .21
Figure 5 – Category 3 – Axle mounted – ASD spectrum .22
Figure 6 – Cumulative PDF tolerance bands .23
Figure 7 – Shock test tolerance – Bands half sine pulse .24
Figure A.1 – Standard measuring positions used for axle, bogie (frame) and body .25
Figure A.2 – Typical fatigue strength curve .29
Figure B.1 – General location of equipment on vehicles .32
Figure D.1 – ASD spectrum.35

Table 1 – Test severity and frequency range for functional random vibration tests.14
Table 2 – Test severity and frequency range.15
Table 3 – Test severity, pulse shape and direction.16
Table A.1 – Environment data acquisition summary of the test parameters/conditions.26
Table A.2 – Summary of the r.m.s. acceleration levels obtained from the questionnaire .28
Table A.3 – Test levels obtained from service data using the method shown in Clause A.4 .31

– 4 – 61373 © IEC:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
RAILWAY APPLICATIONS –
ROLLING STOCK EQUIPMENT –
SHOCK AND VIBRATION TESTS
FOREWORD
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