IEC TR 62131-3:2011

Environmental conditions - Vibration and shock of electrotechnical equipment - Part 3: Equipment transported in rail vehicles

IEC/TR 62131-3:2011(E) reviews the available dynamic data relating to electrotechnical equipment transported by rail vehicles. The intent is that from all the available data an environmental description will be generated and compared to that set out in IEC 60721. For each of the sources identified the quality of the data is reviewed and checked for self consistency. The process used to undertake this check of data quality and that used to intrinsically categorize the various data sources is set out in IEC/TR 62131-1.

General Information

• Status: Published
• Publication Date: 23-Feb-2011
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 19.040 - Environmental testing
• Technical Committee: TC 104 - Environmental conditions, classification and methods of test
• Drafting Committee: WG 15 - TC 104/WG 15
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jun-2011
• Completion Date: 24-Feb-2011

Standards Content (Sample)

IEC/TR 62131-3 ®
Edition 1.0 2011-02
TECHNICAL
REPORT
colour
inside
Environmental conditions – Vibration and shock of electrotechnical equipment –
Part 3: Equipment transported in rail vehicles

IEC/TR 62131-3:2011(E)
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IEC/TR 62131-3 ®
Edition 1.0 2011-02
TECHNICAL
REPORT
colour
inside
Environmental conditions – Vibration and shock of electrotechnical equipment –
Part 3: Equipment transported in rail vehicles

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
X
ICS 19.040 ISBN 978-2-88912-388-9

– 2 – TR 62131-3  IEC:2011(E)
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references. 7
3 Data source and quality . 8
3.1 UK rail measurements . 8
3.2 Association of American Railroads – Lengthways shocks . 9
3.3 Association of American Railroads – Intermodal environment . 10
3.4 Association of American Railroads – Study of the shock and vibration
environment in boxcars . 10
3.5 Association of American Railroads – Study of the railroad shock and vibration
environment for railroader equipment . 11
3.6 Supplementary data . 11
4 Intra data source comparison . 12
4.1 General remark . 12
4.2 UK Rail measurements . 12
4.3 Association of American Railroads – Lengthways shocks . 13
4.4 Association of American Railroads – Intermodal environment . 13
4.5 Association of American Railroads – Study of the shock and vibration
environment in boxcars . 14
4.6 Association of American Railroads – Study of the railroad shock and vibration
environment for railroader equipment . 14
4.7 Supplementary data . 15
5 Inter data source comparison . 15
6 Environmental description . 17
7 Comparison with IEC 60721 . 18
8 Recommendations . 20
Bibliography . 49

Figure 1 – British Rail measured vertical vibration severities . 22
Figure 2 – British Rail measured lateral vibration severities . 22
Figure 3 – British Rail measurements distribution of shunting velocities . 23
Figure 4 – Association of American Railroads – Lengthways shock measurements –
example shock pulses . 24
Figure 5 – Association of American Railroads – Lengthways shock measurements –
comparison of positive peak acceleration . 25
Figure 6 – Association of American Railroads – Lengthways shock measurements –
comparison of negative peak acceleration . 25
Figure 7 – Association of American Railroads – Lengthways shock measurements –
comparison of rms acceleration . 26
Figure 8 – Association of American Railroads – Lengthways shock measurements –
comparison of crest factor . 26
Figure 9 – Association of American Railroads – Lengthways shock measurements –
comparison of change of velocity . 27
Figure 10 – Association of American Railroads – Lengthways shock measurements –
comparison of filtered peak acceleration . 27
Figure 11 – Association of American Railroads – Intermodal study - amplitude
probability in longitudinal axis . 28

TR 62131-3  IEC:2011(E) – 3 –
Figure 12 – Association of American Railroads intermodal study – amplitude probability
in lateral axis . 29
Figure 13 – Association of American Railroads intermodal study – amplitude probability
in vertical axis . 30
Figure 14 – Association of American Railroads – Intermodal study – vertical axis
spectral values . 32
Figure 15 – Association of American Railroads – Intermodal study – lateral axis spectral
values . 32
Figure 16 – Association of American Railroads – Intermodal study – longitudinal axis
spectral values . 33
Figure 17 – Association of American Railroads – Boxcar measurements – vertical axis
spectral values . 33
Figure 18 – Association of American Railroads – Boxcar measurements – lateral axis
spectral values . 34
Figure 19 – Association of American Railroads – Boxcar measurements – longitudinal
axis spectral values . 34
Figure 20 – Association of American Railroads – Cushioned boxcar measurements –
middle of car . 35
Figure 21 – Association of American Railroads – Cushioned boxcar measurements –
end of car . 35
Figure 22 – Association of American Railroads – Standard boxcar measurements –
middle of car . 36
Figure 23 – Association of American Railroads – Standard boxcar measurements – end
of car . 36
Figure 24 – Association of American Railroads – Railroader measurements – peak
spectral value. 37
Figure 25 – Association of American Railroads – Railroader measurements – amplitude
probabilities . 38
Figure 26 – Johnson – Reported measurements – spring buffers . 39
Figure 27 – Johnson – Reported measurements hydraulic buffers . 39
Figure 28 – Johnson – Reported measurements – probability of occurance . 40
Figure 29 – Foley – Reported measurements – frequency distribution . 40
Figure 30 – Foley – Reported measurements – recurrent events . 41
Figure 31 – Foley – Reported measurements – intermittent events . 41
Figure 32 – GAM-EG-13 – Reported measurements – longitudinal axis . 42
Figure 33 – GAM-EG-13 – Reported measurements – lateral axis . 42
Figure 34 – GAM-EG-13 – Reported measurements – vertical axis . 43
Figure 35 – GAM-EG-13 – Reported measurements - longitudinal shocks . 43
Figure 36 – GAM-EG-13 – Reported measurements– vertical shocks . 44
Figure 37 – ASTM D4728-95 – Reported measurements . 44
Figure 38 – IEC 60721-3-2 (1997) – Random vibration severity . 45
Figure 39 – IEC 60721-4-2 (1997) – Random vibration severity . 45
Figure 40 – IEC 60721-3-2 (1997) – Sinusoidal vibration severity . 46
Figure 41 – IEC 60721-4-2 (1997) – Sinusoidal vibration severity . 46
Figure 42 – IEC 60721-3-2 (1997) – Shock severity . 47
Figure 43 – IEC 60721-4-2 (1997) – Shock severity . 47
Figure 44 – IEC 60721-4 (1997)– Recommended repeated shock severity . 48

– 4 – TR 62131-3  IEC:2011(E)
Table 1 – British Rail measurements summary of vibration measurements . 23
Table 2 – Association of American Railroads intermodal study as it relates to Figure 11 . 28
Table 3 – Association of American Railroads – Intermodal study as it relates to Figure 12. 29
Table 4 – Association of American Railroads – Intermodal study as it relates to Figure 13. 30
Table 5 – Association of American Railroads intermodal study – summary of results
from shock measurements . 31
Table 6 – Association of American Railroads intermodal study– summary of results from
vibration measurements . 31
Table 7 – Association of American Railroads – Boxcar measurements – distribution of
shocks . 37
...