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BSI PD IEC/TR 62131-4:2011

BSI PD IEC/TR 62131-4:2011

$215.11

Environmental conditions. Vibration and shock of electrotechnical equipment – Equipment transported in road vehicles

Published By Publication Date Number of Pages
BSI 2011 72
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IEC/TR 62131-4, which is a technical report, reviews the available dynamic data relating to electrotechnical equipment transported by road 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 [25]1.

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.

This technical report primarily addresses data extracted from a number of different sources for which reasonable confidence exists as to the quality and validity. The report also presents data for which the quality and validity cannot realistically be reviewed. These data are included to facilitate validation of information from other sources. The report clearly indicates when utilizing information in this latter category.

This technical report addresses data from a number of data gathering exercises. The quantity and quality of data in these exercises varies considerably as does the range of road (and test track) conditions covered. The vast majority of the road conditions are from Western Europe. It is believed that one of the data sources considered is that used to set the current IEC 60721 severities. However, review of that data indicates the inclusion of some quite old vehicles.

Relatively little of the data reviewed were made available in electronic form. To permit comparison to be made in this assessment, a quantity of the original (non-electronic) data have been manually digitized.

PDF Catalog

PDF Pages PDF Title
4 CONTENTS
7 FOREWORD
9 1 Scope
2 Normative references
3 Data source and quality
3.1 SRETS road and test track measurements
10 3.2 CEEES ‘round robin’ 10 tonne truck measurements
11 3.3 Various vehicle measurements by Hoppe and Gerock
12 3.4 Millbrook measurements on Landrover Defender
3.5 Millbrook measurements on Ford transit van
13 3.6 Millbrook measurements on Renault Magnum
14 3.7 Supplementary data
15 4 Intra data source comparison
4.1 General remark
4.2 SRETS road and test track measurements
16 4.3 CEEES ‘round robin’ 10 tonne truck measurements
4.4 Various vehicle measurements by Hoppe and Gerock
17 4.5 Millbrook measurements on Landrover Defender, Ford Transit Van and Renault Magnum
4.6 Renault Trafic (1,9 tonne) and TRM 1000 (20 Tonne)
4.7 Various US road vehicles circa 1970 and circa mid 1980’s
5 Inter data source comparison
19 6 Identified test severities
7 Environmental description
22 8 Comparison with IEC 60721 and IEC 60068
26 9 Recommendations
28 Tables

Table 1 – Summary of SRETS journeys
Table 2 – Summary of measurements made by Bosch using a numberof vehicles and under different test conditions
29 Figures

Figure 1 – Schematic of SRETS vehicles
30 Figure 2 – Effective values of all runs from covert SRETS measurements
Figure 3 – All PSD form covert SRETS measurements
31 Figure 4 – Comparison of SRETS amplitudes in the 3 axis
Figure 5 – Comparison of SRETS measurements made with driver’s knowledge
32 Figure 6 – Comparison of SRETS PSDs of different vehicles (v1, v2,v3) and road categories made with driver’s knowledge
Figure 7 – Comparison of SRETS measurements made without driver’s knowledge (covert) and with driver’s knowledge (overt) on different roads
33 Figure 8 – Comparison of different SRETS vehicles at the load platform – Measurements made with driver’s knowledge
Figure 9 – Comparison of SRETS measurements with different road categories – Made with driver’s knowledge
34 Figure 10 – Comparison of vertical SRETS time and signal triggered data made without driver’s knowledge
35 Figure 12 – Power spectral density of SRETS time and signal triggered data made without driver’s knowledge
Figure 13 – Peak hold PSD of SRETS time and signal triggered datamade without driver’s knowledge
36 Figure 14 – APD of the SRETS measured data made without driver’s knowledge
Figure 15 – Fitting of SRETS APD with multiple gaussian distributions
37 Figure 16 – Vertical SRS of SRETS measured amplitudes greater than 5 g –Made without driver’s knowledge
Figure 17 – Lateral SRS of SRETS measured amplitudes greater than 5 g –Made without driver’s knowledge
38 Figure 18 Vibration r.m.s. against time for CEEES analysis
Figure 19 – Vibration r.m.s. against vehicle velocity for CEEES analysis
39 Figure 20 – Acceleration peaks against vehicle velocity for CEEES analysis
Figure 21 – Vibration PSD analysis from CEEES ‘round robin’ exercise
40 Figure 22 – Shock SRS analysis from CEEES ‘round robin’ exercise
Figure 23 – Vibration test severities from CEEES ‘round robin’ exercise
41 Figure 24 – Composite vibration PSD of CEEES measurements
Figure 25 – Composite vibration APD from CEEES measurements
42 Figure 26 – Vibration PSD from degraded roads on CEEES measurements
Figure 27 – Shocks from CEEES measurements
43 Figure 28 – Typical vibration PSD from Hoppe and Gerock measurements
Table 3 – Vehicles included in Hoppe and Gerock measurements
44 Table 4 – Shock occurrences from Hoppe and Gerock measurements
Table 5 – Probable” shock durations from Hoppe and Gerock measurements
45 Figure 29 – Envelope of vibration PSD from Hoppe and Gerock measurements
Figure 30 – Number of shocks per 100 km FROM Hoppe and Gerock measurements
46 Figure 31 – Vibration r.m.s. from Millbrook measurements on landrover
Figure 32 – Shock peaks from Millbrook measurements on landrover
47 Figure 33 – Vibration PSD from Millbrook measurements on landrover
Figure 34 – Vibration r.m.s. from Millbrook measurements on transit van
48 Figure 35 – Maximum PSD values FROM Millbrook measurements on transit van
Figure 36 – Shock amplitudes from Millbrook measurements on transit van
49 Figure 37 – Vibration r.m.s. from Millbrook measurements on Renault Magnum
50 Figure 39 – Shock amplitudes from Millbrook measurements on Renault Magnum
Figure 40 – Maximum PSD values from Millbrook measurements on Renault Magnum
51 Figure 41 – Vibration PSD from GAM EG 13 measurements on Renault Traffic
Table 6 – Vibration r.m.s. from GAM EG 13 measurements on Renault Traffic
52 Figure 42 – Vibration PSD from GAM EG 13 measurements on RVI TRM 1000
Table 7 – Vibration r.m.s. from GAM EG 13 measurements on RVI TRM 1000
53 Figure 43 – Vibration severities from Mil Std 810 (Foley)
Figure 44 – Vibration severities from Mil Std 810 (Connon)
54 Figure 45 – Data from ASTM 4728-91
Figure 46 – Data from ASTM D4278-95
55 Figure 47 – Data from EXACT DK 1 – 237
Figure 48 – Data from reference 15
56 Figure 49 – Data from ASTM D 4728-95
Figure 50 – Data from reference 16
57 Figure 51 – SRETS test severity from PSD
Figure 52 – SRETS test severity from PSD
58 Table 8 – SRETS shock test definition to augment vibration test from PSD
59 Figure 53 – SRETS test severity from r.m.s. (including shocks)
Figure 54 – SRETS test severity from r.m.s. (including shocks)
60 Figure 55 – Test severities from UK defence standard
Figure 56 – Test severities from NATO STANAG
61 Figure 57 – Test severities from ASTM D 4728-95
Figure 58 – Test severity from ETA
62 Figure 59 – Test severities from CEN and ISO
Figure 60 – Test severities from ETS
63 Figure 61 – IEC 60721-2-2:1997 [26] – Random vibration severity
Figure 62 – IEC 60721-4-2:1997 – Random vibration severity
64 Figure 63 – IEC 60721-3-2:1997 – Sinusoidal vibration severity
Figure 64 – IEC 60721-4-2:1997 – Sinusoidal vibration severity
65 Figure 65 – IEC 60721-3-2:1997 – Shock severity
Figure 66 – IEC 60721-4-2:1997 – Shock severity
66 Figure 67 – IEC 60721-4-2:1997 – Recommended repeated shock severity
Figure 68 – Comparison of the effects of IEC 60721-4-2:1997 –Random and sinusoidal vibration severities
67 Figure 69 – Comparison of the effects of IEC 60721-4-2:1997 –Random and sinusoidal vibration severities
Figure 70 – Comparison of the effects of IEC 60721-4-2:1997 –Random and sinusoidal vibration severities
68 Bibliography

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BSI PD IEC/TR 62131-4:2011
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