BSI PD IEC/TR 62131-2:2011
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Environmental conditions. Vibration and shock of electrotechnical equipment – Equipment transported in fixed wing jet aircraft
| Published By | Publication Date | Number of Pages |
| BSI | 2011 | 44 |
IEC/TR 62131-2, which is a technical report, reviews the available dynamic data relating to electrotechnical equipment transported in fixed wing jet transport aircraft. 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.
This technical report primarily addresses data extracted from a number of different sources for which reasonable confidence exist as to their 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 it utilizes information in this latter category.
This technical report addresses data from several different transport aircraft1. Although one of these aircraft is no longer used commercially, data from it are included to facilitate validation of information from other sources.
Relatively little of the data reviewed has been made available in electronic form. To permit comparison, a quantity of the original (non-electronic) data have been manually digitized in this technical report.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | CONTENTS |
| 6 | FOREWORD |
| 8 | 1 Scope 2 Normative references |
| 9 | 3 Data source and quality 3.1 Lockheed Tristar KC Mk 1 3.2 BAe VC10 K |
| 10 | 3.3 Boeing 747 Combi (freight and passengers) |
| 12 | 3.4 Supplementary data 4 Intra data source comparison 4.1 General remark 4.2 Lockheed Tristar KC Mk 1 |
| 13 | 4.3 BAe VC10 K |
| 14 | 4.4 Boeing 747 Combi (freight and passengers) 5 Inter data source comparison |
| 15 | 6 Environmental description 6.1 Lockheed Tristar KC Mk 1 6.2 BAe VC10 K 6.3 Boeing 747 Combi (freight and passengers) 7 Supplementary data 7.1 General remark 7.2 McDonnell Douglas DC8 Cargo |
| 16 | 7.3 Lockheed C5A (Galaxy), Lockheed C-141 (Starlifter) and Boeing NC-135 (707) 8 Comparison with IEC 60721 |
| 17 | 9 Recommendations |
| 19 | Figures Figure 1 – Schematic of Tristar aircraft Tables Table 1 – Tristar flight conditions and measured r.m.s. values |
| 20 | Figure 2 – Tristar noise measurements Figure 3 – Tristar vibration measurements – Take-off, power and roll |
| 21 | Figure 4 – Tristar vibration measurements – Low altitude climb Figure 5 – Tristar vibration measurements – High altitude cruise |
| 22 | Figure 6 – Tristar vibration measurements – Landing Figure 7 – Tristar vibration measurements – Low altitude decent |
| 23 | Figure 8 – Tristar vibration measurements – C of G take-off/climb Figure 9 – Tristar vibration measurements – Forward take-off/climb |
| 24 | Figure 10 – Tristar vibration measurements – Centre of gravity cruise Figure 11 – Tristar vibration measurements – Forward cruise |
| 25 | Figure 12 – Tristar vibration measurements – Centre of gravity landing Figure 13 – Tristar vibration measurements – Forward landing |
| 26 | Figure 14 – Tristar vibration measurements – Cruise environment Figure 15 – Tristar vibration measurements – Take-off/landing environment |
| 27 | Figure 16 – Schematic of VC10 aircraft Table 2 – VC10 flight conditions Table 2a – VC10 measurement locations |
| 28 | Table 3 – Overall g r.m.s. (3,25 Hz to 2 000 Hz) for VC10 airframe/container Table 4 – Overall g r.m.s. (3,25 Hz to 399 Hz) for VC 10 container measurements |
| 29 | Figure 17 – VC10 vibration measurements – Cruise Figure 18 – VC10 vibration measurements – Maximum airframe severity |
| 30 | Figure 19 – VC10 vibration measurement – Forward container during reverse thrust Figure 20 – VC10 vibration measurement – Rear container during reverse thrust |
| 31 | Figure 21 – VC10 measurements – Overlaid worst case spectra |
| 32 | Table 5 – Summary of 747 air transport data Table 6 – Summary of 747 acceleration levels (g) expectedto be exceeded for 1 % of the time of the trial |
| 33 | Figure 22 – Vibration measurements on a pallet in a Boeing 747 Combi aircraft (transducer V1) Figure 23 – Vibration measurements on a pallet in a Boeing 747 Combi aircraft (Transducer V2) |
| 34 | Figure 24 – DC8 vibration measurements reverse thrust Table 7 – Summary of DC8 air data |
| 35 | Figure 25 – DC8 vibration measurements acceleration and take-off Figure 26 – DC8 vibration measurements cruise |
| 36 | Figure 27 – Foley representation of environment for NC-135, C-141 and C-5A aircraft Figure 28 – Foley landing shock environment |
| 37 | Figure 29 – Foley test severity for take-off/landing Table 3 – Foley test severity for take-off/landing – Sine components |
| 38 | Figure 30 – Foley test severity for cruise Table 10 – Foley test severity for cruise – Sine components |
| 39 | Figure 31 – IEC 60721-3-2:1997 – Stationary vibration random Figure 32 – IEC 60721-3-2:1997 – Non-stationary vibration including shock |
| 40 | Figure 33 – Test severities – ASTM D 4728-91 Figure 34 – Test severities – Mil Std 810 issue F and G |
| 41 | Figure 35 – Test severities – AECTP 400 (Editions 2 and 3) Figure 36 – Test severity – Def Stan 00-35, issues 3 and 4 |
| 42 | Bibliography |
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BSI PD IEC/TR 62131-2:2011
Environmental conditions. Vibration and shock of electrotechnical equipment – Equipment transported in fixed wing jet…
