SAE AS 603B-2009 Impulse Testing of Hydraulic Hose Tubing and Fitting Assemblies《液压软管 管道和配件的脉冲测试》.pdf

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1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref

2、rom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2015 SAE InternationalAll rights reserved. No part of this publi

3、cation may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970 (out

4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AS603BAEROSPACESTANDARDAS603 REV. BIssued 2004-09Revised 2009-02Reaffirmed 2015-06Superseding

5、 AS603AImpulse Testing of Hydraulic Hose, Tubing,and Fitting AssembliesRATIONALEAS603B has been reaffirmed to comply with the SAE five-year review policy.1. SCOPEThis SAE Aerospace Standard (AS) establishes the requirements and procedures for impulse testing of hose, tubing, and fitting assemblies f

6、or use in aerospace hydraulic systems of 8000 psi nominal operating pressure or less. It also refers to standard impulse test equipment to be used in conducting these impulse tests. 2. REFERENCES2.1 Applicable Documents The following publications form a part of this document to the extent specified

7、herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this document and references cited herein, the text of this document takes precedence. Not

8、hing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA

9、), www.sae.org. AIR1228 Standard Impulse Machine Equipment and Operation MA2002 Impulse Testing of Hydraulic Hose, Tubing and Fitting Assemblies2.1.2 U.S. Government Publications Available from the Document Automation and Production Service (DAPS), Building 4D, 700 Robbins Avenue, Philadelphia, PA 1

10、9111-5094, Tel: 215-697-6257, http:/assist.daps.dla.mil/quicksearch/. MIL-PRF-7808 Lubrication, Oil Aircraft Turbine Engine, Synthetic Base MIL-PRF-83282 Hydraulic Fluid, Fire Resistant, Synthetic Hydrocarbon Base, Aircraft, NATO Code Number H-537SAE INTERNATIONAL AS603B Page 2 of 6 2.1.3 ISO Public

11、ations Available from International Organization for Standardization, 1, rue de Varembe, Case postale 56, CH-1211 Geneva 20, Switzerland, Tel: +41-22-749-011, www.iso.org. ISO 6772 Aerospace Fluid Systems, Impulse Testing of Hydraulic Hose, Tubing, Fitting Assemblies 2.1.4 ASME Publications Availabl

12、e from American Society of Mechanical Engineers, 22 Law Drive, P.O. Box 2900, Fairfield, NJ 07007-2900,Tel:973-882-1170, www.asme.org. ASME Y14.38 Abbreviation For the Use On Drawings and Text 3. REQUIREMENTS3.1 Shape of the Impulse Trace When observed on an oscilloscope, the impulse traces show as

13、approximate pressure-time cycles. It is mandatory that these pressure-time curves be confined to the shaded area indicated in Figure 1, and that the dynamic impulse trace produced by the test machine shall be in conformance with the trace illustrated in Figure 1.Key1. Only one pressure peak is allow

14、ed above 110% of operating pressure and it must be within the first 15% of cycle2 Percentage of nominal pressure 5%3 The slope of this portion of curve, between 10% and 90% of peak pressure, gives the rate of rise (see 2.2)4 Peak pressure (see Table 1 or 2) 5. Back pressure in pressure classes B, D,

15、 E: (345 170) kPa / (50 25) psi.6. Back pressure in pressure classes J, K: (700 350) kPa / (100 50) psiSAE INTERNATIONAL AS603B Page 3 of 6 3.2 Calculations The rate of rise will be calculated as follows: tat0.1ptat0.9p0.1p0.9pRate of pressure ri se (Eq. 1) where: p = peak pressure in psi or kPa (se

16、e Table 1 or 2) t = time in seconds NOTES: (1) The rate of rise is defined as the slope of the pressure-time curve in the straight portion of the pressure rise. For purposes of definition, the rate of rise shall be determined between 10 and 90% of the peak pressure. (2) The peak pressure is defined

17、as the maximum pressure reached during the test pressure surge to 100, 125, 135 or 150% of the specified operating pressure, as appropriate. (3) Sweep rate on the oscilloscope or recorder shall be adjusted so that the slope of the pressure rise shall takeadvantage of the full size of the screen. The

18、 trace or photograph of the impulse cycle shall be an accurate record of the impulse cycle and shall show a grid or other means to permit accurate checking. The end-to-end accuracy of the data acquisition system and sensors should ensure that the impulse measurement uncertainty is within the pressur

19、ewaveform specifications of this document. Accuracy and uncertainty in measurement to be calculated per AIR1228A. 3.3 Preparation of Specimens The preparation of test specimens shall be defined in the applicable specification of the component. Specimens shall be subjected to the applicable treatment

20、s and production test requirements of the component specifications. 3.4 Equipment The testing shall be conducted on equipment in accordance with and instrumented per AIR1228. Equivalent equipment may be used. 3.5 Test Fluid Unless the component materials or other considerations prevent it, MIL-PRF-8

21、3282 or MIL-PRF-7808 oil shall be used as the test fluid. 3.6 Test Duration and Temperature Cycling Testing shall be continuous with as few shutdowns for repair and/or replacement as necessary. Attempts should be made to schedule the testing to minimize downtime, such as over weekends, whether tempe

22、rature is maintained or not, to provide more nearly uniform conditions of temperature cycling and aging. SAE INTERNATIONAL AS603B Page 4 of 6 4. METHOD OF TEST4.1 Hose, Tubing, and Fitting Assemblies For testing of hose, tubing and fitting assemblies, including boss or port fittings, the cycle rate

23、shall be 70 cpm 5 cpm. The peak pressure and the rate of pressure rise shall be per Table 1 or 2 of this specification. The assembly shall be tested in the sequence shown in Table 2 unless otherwise specified. The total number of cycles shall be 200 000, unless otherwise specified in the detail spec

24、ification. After the temperature is stabilized at the maximum or minimum per Table 3, a minimum soak time of 1 hour is required before beginning that portion of the test sequence. The fluid temperature shall be as measured at the test manifold. The ambient temperature shall be measured at a point wi

25、thin 6 inches (150 mm) from the assemblies. The pressure peak shall be measured at the test manifold. TABLE 1 - Peak Pressure and Rate of Pressure Rise Imperial Units of Measure Hoses, Tubing and Fitting Assemblies Peak Pressure % Minimum Rate of Pressure Rise psi/sMaximum Rate of Pressure Rise psi/

26、sNominal Pressure Classapsi Nominal Outside DiameterbB 1 500-08 and smaller 125 18 000100 000-10 through -16 75 000-20 50 000-24 and over 40 000D 3 000All sizes 15045 000300 000E 4 00060 000Hc5 00075 000Gd8 000135 75 000 650 000aPressure classes in accordance with ISO 6771 except 35 000 and 55 000 c

27、lasses bNominal outside diameters in accordance with ISO 8575. DN = nominal outside diameter in mm. cISO 6771 pressure class J d ISO 6771 pressure class KSAE INTERNATIONAL AS603B Page 5 of 6 TABLE 2 - Peak Pressure and Rate of Pressure Rise SI-Metric Units of Measure Hoses, Tubing and Fitting Assemb

28、lies Peak Pressure % Minimum Rate of Pressure Rise kPa/s Maximum Rate of Pressure Rise kPa/s Nominal Pressure ClassakPa NominalOutside DiameterbB 10 500DN14 and smaller 125 126 000700 000DN16 - DN25 (incl) 520 000DN32 340 000DN40 and over 280 000D 21 000All sizes 150315 0002 100 000E 28 000420 000Hc

29、35 000525 000Gd55 000135 525 000 4 590 000aPressure classes in accordance with ISO 6771 except 35 000 and 55 000 classes bNominal outside diameters in accordance with ISO 8575. DN = nominal outside diameter in mm. cISO 6771 pressure class J d ISO 6771 pressure class KTABLE 3 - Sequence and Duration

30、of Impulse Testing at Temperature (UNLESS OTHERWISE SPECIFIED IN THE DETAIL OR PROCUREMENT SPECIFICATION) Sequence No.Number of cycles as a percentage of the total number of cyclesTemperature (ambient and fluid)1 50Maximum2 24From 15C to 35C/60F to 950F3 1 Minimum4 5 Maximum5 20Ambient and fluid: an

31、y of the above. These cycles may be added to any one sequence or divided among them.SAE INTERNATIONAL AS603B Page 6 of 6 5. INTENDED USE5.1 Standard This standard is intended to promote standardization of impulse test requirements, procedures and equipment for the standard qualification and evaluati

32、on impulse testing of hydraulic hose assemblies, tubing and fittings. 5.2 Reference When this standard is referenced in a specification as part of the requirements, the following additional requirements must be specified: a. Nominal operating pressureb. Peak pressure (when applicable)c. Operating te

33、mperaturesd. Design of specimens6. NOTES6.1 Applicable Pressure This standard is applicable for testing components of 1500, 3000, 4000, 5000 and 8000 psi nominal hydraulic systems such as hose, tubing and fitting assemblies.6.2 This AS603 standard supersedes the previous revisions of ARP603 Revision

34、 F. 6.3 Similarity with MA2002 and ISO 6772: The test methods specified herein are similar to MA2002 or ISO 6772 in metric version. 7. NOTES7.1 A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been

35、 made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY SAE COMMITTEE G-3, AEROSPACE COUPLINGS, FITTINGS, HOSE AND TUBING ASSEMBLIES