SAE-J2489-2007.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 there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2007 SAE International All rights reserved. No part of this publication m
3、ay 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: 724-776-4970 (outside USA)
4、 Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org J2489 REV. APR2007 SURFACE VEHICLE RECOMMENDED PRACTICE Issued 2000-04 Revised 2007-04 Superseding J2489 APR2000 SAE No. 2 Friction Test Machine Durability Test RATIONALE a. Dropped reference to GM, Ford and DC publi
5、cations as they were deemed not specific to be helpful nor widely available. b. Made changes in Section 7 data table references. Clarified chart references, removed appendix reference error. 1. SCOPE This SAE Recommended Practice is intended as the definition of a standard test, but may be subject t
6、o frequent change to keep pace with experience and technical advances. This should be kept in mind when considering its use. The SAE No 2 Friction Test Machine is used to evaluate the friction characteristics of automatic transmission plate clutches with automotive transmission fluids. It can also b
7、e used to conduct durability tests on wet friction systems. The specific purpose of this document is to define a Durability Test based on a specific power level selected from either the 3600 r/min Stepped Power Test or from the 6000 r/min Stepped Power Test, for the evaluation of wet friction system
8、 performance variation as a function of number of cycles. This standard procedure is intended for common use by both suppliers and end users to allow objective comparisons of wet friction material system performance. The only variables selected by the supplier or user of the friction system are: a.
9、Friction Material b. Fluid c. Reaction Plates These three variables must be clearly identified when reporting the results of this test. If any of the test parameters or system hardware as described in this document are changed, other than the friction material, test fluid, or reaction plates, the da
10、ta may not be reported as having been obtained using this document. This procedure is not intended to evaluate the initial coefficient or break-in characteristics. For this information, refer to SAE J2490 SAE No. 2 Friction Test Machine PVT Test. 2. REFERENCES 2.1 Applicable Publications The followi
11、ng publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest version of SAE publications shall apply. Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 18:58:
12、09 MSTNo reproduction or networking permitted without license from IHS -,-,- SAE J2489 Revised APR2007 - 2 - 2.1.1 SAE Publications Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J1646 G
13、lossary of TermsLubricated Friction Systems SAE J2487 SAE No. 2 Friction Test Machine 3600 r/min Stepped Power Test SAE J2488 SAE No. 2 Friction Test Machine 6000 r/min Stepped Power Test SAE J2490 SAE No. 2 Friction Test Machine PVT Test 2.2 Related Publications The following publications are for i
14、nformation purposes only and are not a required part of this specification. 2.2.1 SAE Publications Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J286 SAE No. 2 Clutch Friction Test Mach
15、ine Guidelines SAE J1499 SAE Band Friction Test Machine (SAE) Test Machine Guidelines 3. TEST EQUIPMENT As described in SAE J2487 and SAE J2488. 4. TYPICAL OPERATING CONDITIONS AND TEST PARAMETERS As described in SAE J2487 and SAE J2488 depending upon the conditions selected for the Durability Test.
16、 5. GENERAL TEST INFORMATION As described in the SAE J2487 and SAE J2488. 5.1 Test Description The Durability Test consists of 200 conditioning cycles, wherein the stop time is stabilized, followed by a specified number of cycles at the desired power level of either the 3600 r/min Stepped Power Test
17、 or the 6000 r/min Stepped Power Test. The conditioning cycles are run under the conditions of the first level of the Stepped Power Test selected for the Durability Test. The Durability cycles are accumulated by repeating the 200 dynamic cycles and breakaway cycle of the selected level of the Steppe
18、d Power Test. An example of test parameter reporting is detailed in Appendix B. 5.2 End of Level Inspection Shut down test stand. At the completion of the required dynamic engagements and the breakaway measurement, the housing is opened and the clutch pack carefully removed with special attention to
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