EN 61373:1999
(Main)Railway applications - Rolling stock equipment - Shock and vibration tests
Railway applications - Rolling stock equipment - Shock and vibration tests
Specifies the requirements for testing items of equipment intended for use on railway vehicles which are subsequently subjected to vibrations and chock owing to the nature of railway operational environment.
Bahnanwendungen - Betriebsmittel von Bahnfahrzeugen - Prüfungen für Schwingen und Schocken
Applications ferroviaires - Matériel roulant - Essais de chocs et vibrations
Spécifie les prescriptions 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.
Železniške naprave – Oprema voznih sredstev – Preskusi na udarce in vibracije (IEC 61373:1999)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-december-1999
Železniške naprave – Oprema voznih sredstev – Preskusi na udarce in vibracije
(IEC 61373:1999)
Railway applications - Rolling stock equipment - Shock and vibration tests
Bahnanwendungen - Betriebsmittel von Bahnfahrzeugen - Prüfungen für Schwingen und
Schocken
Applications ferroviaires - Matériel roulant - Essais de chocs et vibrations
Ta slovenski standard je istoveten z: EN 61373:1999
ICS:
29.280 (OHNWULþQDYOHþQDRSUHPD Electric traction equipment
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
NORME
CEI
INTERNATIONALE
IEC
INTERNATIONAL
Première édition
STANDARD
First edition
1999-01
Applications ferroviaires –
Matériel roulant –
Essais de chocs et vibrations
Railway applications –
Rolling stock equipment –
Shock and vibration tests
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Commission Electrotechnique Internationale
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International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue
61373 © IEC:1999 – 3 –
CONTENTS
Page
FOREWORD . 7
INTRODUCTION . 9
Clause
1 Scope. 11
2 Normative references. 13
3 Definitions. 15
4 General. 15
5 Order of testing . 17
6 Reference information required by the test house . 17
6.1 Method of mounting and orientation of equipment under test . 17
6.2 Reference and control points. 17
6.2.1 Fixing point. 19
6.2.2 Control point. 19
6.2.3 Reference point. 19
6.2.4 Response point (measuring points). 19
6.3 Mechanical state and functioning during test. 21
6.3.1 Mechanical state. 21
6.3.2 Functional tests. 21
6.3.3 Performance tests . 21
6.4 Reproducibility for random vibration tests . 21
6.4.1 Acceleration spectral density (ASD). 21
6.4.2 Root Mean Square Value (r.m.s.). 23
6.4.3 Probability density function (PDF) . 23
6.4.4 Duration. 23
6.5 Measuring tolerances. 23
6.6 Recovery. 23
7 Initial measurements and preconditioning . 23
8 Random vibration test conditions . 25
8.1 Test severity and frequency range. 25
8.2 Duration of functional vibration tests. 25
8.3 Functioning during test. 25
9 Simulated long life testing at increased random vibration levels . 27
9.1 Test severity and frequency range. 27
9.2 Duration of accelerated vibration tests. 27
61373 © IEC:1999 – 5 –
Clause Page
10 Shock testing conditions. 27
10.1 Pulse shape and tolerance . 27
10.2 Velocity changes. 29
10.3 Mounting. 29
10.4 Repetition rate. 29
10.5 Test severity, pulse shape and direction . 29
10.6 Number of shocks . 29
10.7 Functioning during test . 29
11 Transportation and handling . 31
12 Final measurements. 31
13 Acceptance criteria. 31
14 Report.31
15 Attestation of testing . 33
16 Disposal. 33
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. 47
Annex B (informative) Guidance for deriving design levels from random vibration
test data. 61
Annex C (informative) Figure identifying general location of equipment on
railway vehicles and their resulting test category. 75
Annex D (informative) Example of type test attestation . 77
61373 © IEC:1999 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_________
RAILWAY APPLICATIONS –
ROLLING STOCK EQUIPMENT –
SHOCK AND VIBRATION TESTS
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61373 has been prepared by IEC technical committee 9: Electric
railway equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
9/475/FDIS 9/509/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
Annexes A, B, C and D are for information only.
61373 © IEC:1999 – 9 –
INTRODUCTION
This standard covers the requirements for random vibration and shock testing items of
mechanical, pneumatic, electrical and electronic equipment/components (hereafter only
referred to as equipment) to be fitted on to railway vehicles. Random vibration is the only
method to be used for equipment/component approval.
The tests contained within this standard are specifically aimed at demonstrating the ability of
the equipment under test to withstand the type of environmental vibration conditions normally
expected for railway vehicles. In order to achieve the best representation possible, the values
quoted in this standard have been derived from actual service measurements submitted by
various bodies from around the world.
This standard is not intended to cover self-induced vibrations as these will be specific to
particular applications.
Engineering judgement and experience is required in the execution and interpretation of this
standard.
This standard is suitable for design and validation purposes; however, it does not exclude the
use of other development tools (such as sine sweep), which may be used to ensure a
predetermined degree of mechanical and operational confidence. To assist product design for
compliance with this standard, guidance is given in annex B which allows comparison with
alternative design methods.
The test levels to be applied to the item under test are dictated only by its location on the train
(i.e. axle, bogie or body-mounted).
It should be noted that these tests may be performed on prototypes in order to gain design
information about the product performance under random vibration. However, for attestation of
testing purposes the tests have to be carried out on equipment taken from normal production.
61373 © IEC:1999 – 11 –
RAILWAY APPLICATIONS –
ROLLING STOCK EQUIPMENT –
SHOCK AND VIBRATION TESTS
1 Scope
This International Standard 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 item is
acceptable, it has to withstand tests of reasonable duration that simulate the service conditions
seen throughout its expected life.
Simulated long-life testing can be achieved in a number of ways each having their associated
advantages and disadvantages, the following being the most common:
a) amplification: where the amplitudes are increased and the time base decreased;
b) time compression: where the amplitude history is retained and the time base is decreased;
c) decimation: where time slices of the historical data are removed when the amplitudes are
below a specified threshold value.
The amplification method as stated in a) above, is used in this standard and together with the
publications referred to in clause 2; it defines the default test procedure to be followed when
vibration testing items for use on railway vehicles. However, other standards do exist and may
be used with prior agreement between the manufacturer and the customer. In such cases
attestation of testing against this standard will not apply. Where service information is available
comparison with the standard can be performed using the method outlined in annex A.
Whilst this standard is primarily concerned with railway vehicles on fixed rail systems, its wider
use is not precluded. For systems operating on pneumatic tyres, or other transportation
systems such as trolleybuses, where the level of shock and vibration clearly differ from those
obtained on fixed rail systems, the supplier and customer can agree at the tender stage, the
test levels. It is recommended that the frequency spectra and the shock duration/amplitude be
determined using the guidelines set out in annex A. Items tested at levels outside those quoted
in this standard can not be certified a
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