ASD-STAN PREN 2591-403-2016 Aerospace series Elements of electrical and optical connection Test methods Part 403 Sinusoidal and random vibration (Edition P 3).pdf

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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 2591-403 Edition P 3 July 2016 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8131 - www.asd-stan.orgICS: Descriptors: ENGL

2、ISH VERSION Aerospace series Elements of electrical and optical connection Test methods Part 403: Sinusoidal and random vibration Luft- und Raumfahrt Elektrische und optische Verbindungselemente Prfverfahren Teil 403: Sinus- und rauschfrmige Schwingungen Srie arospatiale Organes de connexion lectriq

3、ue et optique Mthodes dessais Partie 403: Vibrations sinusodales et alatoires This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aeros

4、pace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-ide

5、ntification of the standard. After examination and review by users and formal agreement of ASD-STAN, the ASD-STAN prEN will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN nati

6、onal members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. ASD-STAN Technical Committee approves that: “This document is published by ASD-STAN for the needs of the European Aerospa

7、ce Industry. The use of this standard is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” ASD-STAN reviews each standard and technical report at least every five years at wh

8、ich time it may be revised, reaffirmed, stabilized or cancelled. ASD-STAN invites you to send your written comments or any suggestions that may arise. All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electr

9、onic, mechanical, photocopying, recording, or otherwise, without prior written permission of ASD-STAN. Order details: E-mail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for publication 1stJuly 2016 Comments should be sent within six months after the date of publication t

10、o ASD-STAN Electrical Domain Copyright 2016 ASD-STAN prEN 2591-403:2016 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Preparation of specimens 3 4 Method A Sinusoidal vibration 4 5 Method B Random vibration 6 6 Method C High vibration endurance . 9 Foreword This standard was re

11、viewed by the Domain Technical Coordinator of ASD-STANs Electrical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 2591-403:2016 (E) 3 1 Scope This European S

12、tandard specifies a method of determining the ability of elements of connection to withstand sinusoidal or random vibrations of specified severities. It will be used together with EN 2591-100. This test is based on EN 60068-2-6 and EN 60068-2-64. 2 Normative references The following documents, in wh

13、ole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2591-100, Aerospace series Element

14、s of electrical and optical connection Test methods Part 100: General EN 2591-101, Aerospace series Elements of electrical and optical connection Test methods Part 101: Visual examination EN 2591-201, Aerospace series Elements of electrical and optical connection Test methods Part 201: Contact resis

15、tance low level EN 2591-202, Aerospace series Elements of electrical and optical connection Test methods Part 202: Contact resistance at rated current EN 2591-204, Aerospace series Elements of electrical and optical connection Test methods Part 204: Discontinuity of contacts in the microsecond range

16、 EN 2591-408, Aerospace series Elements of electrical and optical connection Test methods Part 408: Mating and unmating forces EN 60068-2-6, Environmental testing Part 2-6: Tests Test Fc: Vibration (sinusoidal) EN 60068-2-64, Environmental testing Part 2-64: Test methods Test Fh: Vibration, broad-ba

17、nd random (digital control) and guidance 3 Preparation of specimens 3.1 Preparation Specimens shall be prepared according to the technical specification. prEN 2591-403:2016 (E) 4 3.2 Technical details - Technical specification Unless specified in the technical specification, the following details sh

18、all be stated: mounting method, type of cable and definition of specimen wiring; specimens mated or unmated and fitted with protective covers (if applicable); number of mating and unmating operations (if applicable); type of accessories to be fitted on specimens; initial measurements and requirement

19、s, (if applicable); fixing points of sensors on specimens (if applicable); test severity: sinusoidal or random vibration curve (method A Figure 1 or method B Figure 2 or Figure 3); temperature (maximum, minimum and ambient); duration. mating and unmating forces; applicable contact resistance test (E

20、N 2591-201 or EN 2591-202); final measurements (if applicable). 4 Method A Sinusoidal vibration 4.1 EN 60068-2-6 This test method is to be performed in accordance with the requirements of EN 60068-2-6. 4.2 Apparatus The vibration apparatus shall meet the requirements Clause 4 of EN 60068-2-6. 4.3 In

21、itial measurements Initial measurements shall be carried out as specified in the technical specification. 4.4 Procedure 4.4.1 Endurance The specimens shall be subjected to endurance by sweeping as detailed in EN 60068-2-6, 8.2.1 at the levels specified in the product standard. 4.4.2 Test duration Th

22、e entire frequency range of 5 Hz to 3000 Hz and return to 5 Hz shall be swept in 20 min. This cycle shall be performed 12 times in each of three axes so that test duration shall be approximately 12 h. prEN 2591-403:2016 (E) 5 4.5 Preferred vibration levels 4.5.1 General The product standard should i

23、ndicate one or more of the following severities. 4.5.2 Level 1 Over the frequency range 5 Hz to 3000 Hz, constant amplitude of 0,7 mm, or constant acceleration of 10 g, (cross-over frequency 59,6 Hz) whichever is the lesser. 4.5.3 Level 2 Over the frequency range 5 Hz to 3000 Hz, constant amplitude

24、of 1,0 mm, or constant acceleration of 10 g, (cross-over frequency 70,5 Hz) whichever is the lesser, 4.5.4 Level 3 Over the frequency range 5 Hz to 3000 Hz, constant amplitude of 1,0 mm, or constant acceleration of 10 g, (cross-over frequency 70,5 Hz) whichever is the lesser up to a frequency of 119

25、,1 Hz, followed by constant amplitude of 0,35 mm, or 30 g, (cross-over frequency 145,9 Hz) whichever is the lesser. Key 1 Amplitude (single) frequency Y Acceleration Figure 1 Sinusoidal vibration (Nomograph) prEN 2591-403:2016 (E) 6 5 Method B Random vibration 5.1 EN 60068-2-64 This test method is t

26、o be performed in accordance with the requirements of EN 60068-2-64. 5.2 Apparatus The vibration apparatus shall satisfy the requirements for testing of Clause 4 of EN 60068-2-64. 5.3 Initial measurements They shall be carried out as specified in the technical specification. 5.4 Procedure The vibrat

27、ion test shall be performed in accordance with 8.1, Method 2 of EN 60068-2-64. Initial, and final response investigations are not required. 5.5 Preferred vibration levels 5.5.1 Vibration monitoring The vibration magnitude shall be monitored as near as possible to the specimen fixing points to confir

28、m compliance with the specified vibration curve at all measuring points. The specimens shall be vibrated in each of the three axes perpendicular between them, one axis being parallel to the coupling axis. Unless otherwise specified measurements to EN 2591-204 (Method B) shall be carried out on conta

29、cts and (if applicable) the shielding connection. No discontinuity higher or equal to 1 s shall be observed. Discontinuities lower than 1 s are admissible provided their repetition rate does not exceed 1 Hz. 5.5.2 Random vibration severity The test severity is given by a combination of spectral shap

30、e, spectral density, duration and temperature. 5.5.3 Spectral shape and density See Figure 2 and Table 1 or Figure 3 and Table 2. prEN 2591-403:2016 (E) 7 Key 1 6 dB/octave 2 24 dB/octave frequency Y Spectral shape Figure 2 Spectral shape (lower noise r.m.s. values) Table 1 Characteristics Level Pow

31、er spectral density Noise r.m.s. value m/s A 0,02 51 B 0,04 72 C 0,06 88 D 0,1 114 E 0,2 161 F 0,3 196 G 0,4 226 H 0,6 278 J 1 359 K 1,5 439 prEN 2591-403:2016 (E) 8 Key 1 6 dB/octave 2 12 dB/octave 3 24 dB/octave frequency Y Spectral shape Figure 3 Random vibrations (higher noise r.m.s. values) Tab

32、le 2 Characteristics Level Power spectral density Noise r.m.s. value m/s A 0,02 58 B 0,04 81 C 0,06 100 D 0,1 129 E 0,2 183 F 0,3 223 G 0,4 259 H 0,6 317 J 1 409 K 1,5 501 prEN 2591-403:2016 (E) 9 5.5.4 Test duration The specimens shall be subjected to the specified vibration level for 8 min, 15 min

33、, 1,5 h or 8 h as specified in the technical specification for each of the three axes. 5.6 Final measurements (if applicable) The specimens shall be subjected to the following test sequence: EN 2591-101; EN 2591-408; EN 2591-201 or EN 2591-202. 6 Method C High vibration endurance 6.1 Test methods Ea

34、ch sample pair consists of a flange mounted receptacle with a minimum of 1000 mm of cable and a free plug with a minimum of 1000 mm of cable. The harness shall be “open wire” construction. The coupling torque of the connectors is defined in the relevant technical specification. The cables shall be c

35、lipped using clips selected to suit the harness bundle. The clipping bracket and first clipping position shall be 250 mm from the connector test bracket and mounted free of the vibration assembly. The bracket shall be 50 x 50 mm L section, 6 mm thick. The weight of the bracket shall be less than 1 k

36、g. Dimensions in millimetres Figure 4 All contacts shall be wired in series and connected to a continuity monitor. Mark the alignment of coupling nut and connector body with an ink line when fully coupled (prior to commencing the test) to determine any uncoupling during the test. prEN 2591-403:2016

37、(E) 10 6.2 Test specification Each cable shall be monitored for continuity. This shall be performed by passing a current of less than 1 mA at a voltage of 5 V. The system shall be capable of detecting a break in continuity of 1 s and capable of monitoring all channels simultaneously. 43 Hz 337,8 mm/

38、s (9,31 g) 125 Hz 250,7 mm/s (20,08 g) 183 Hz 225,4 mm/s (26,43 g) 1 039 Hz 31,24 g 0,03 g/Hz random from 50 Hz to 5 kHz The vibration profile above shall be applied for 1 hour periods with a 5 minutes interval between each run period Duration: 60 h in transversal axis at ambient temperature. 6.3 Pe

39、rformance requirements The connector shall not have any discontinuities during the test. Connectors shall not uncouple to any degree during the test. When the connectors are uncoupled for internal visual examination, care shall be taken to avoid the displacement of any dust, deposits or particles th

40、at may be present on the seal, contacts or adjacent interface areas. There shall be no loose particles or debris. When dismantled, the connector pins and sockets shall show no signs of excessive chafing i. e. the contact parent metal shall not be exposed in any areas, contact profiles (not including

41、 the crimp zone) shall remain concentric and regular, and the contacts shall not be coated in any deposits. The interfacial seal shall be undamaged and there shall be no visible gaps between the pin contact and the interfacial seal. The interfacial seal shall be free from any deposits. The connector shall show no signs of damage i. e. loosening or detachment of component parts If applicable, the specimens shall be subjected to the following additional tests: EN 2591-408; EN 2591-201 or EN 2591-202.