SAE-J1166-2008.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 2008 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 J1166 FEB2008 SURFACE VEHICLE STANDARD Issued 1976-12 Revised 2008-02 Superseding J1166 OCT1998 (R) Sound MeasurementOff-Road Self-Propelled Work Machines Operator-Work Cycle RATIONALE This standard has been updated
5、to reflect the latest versions of standards referenced. The procedures as to how to calculate noise exposure have also been modified to add clarity and better reflect the procedures used within the off road industry. TABLE OF CONTENTS 1. SCOPE2 2. REFERENCES2 3. TERMS AND DEFINITIONS.3 4. SYMBOLS AN
6、D ABBREVIATIONS4 5. DATA ACQUISITION AND REDUCTION SYSTEM.4 6. MEASUREMENT OF OTHER PHYSICAL PARAMETERS .5 7. TEST PROCEDURE.5 8. CALCULATION OF AN OPERATORS SOUND EXPOSURE.7 9. GENERAL COMMENTS.7 10. SOUND EXPOSURE WORK CYCLES 8 11. NOTES22 APPENDIX A - CALCULATION OF SOUND EXPOSURE.23 APPENDIX B -
7、 DEFINITION OF LOW, INTERMEDIATE AND HIGH SPEEDS26 APPENDIX C - SOUND EXPOSURE WORKSHEET.27 SAE J1166 Revised FEB2008 - 2 - FOREWORD This document has changed to incorporate the latest applicable and related publications, test equipment and machine technology. Some technical aspects have been clarif
8、ied. Engine cooling fan speed requirements have been updated to coincide with global sound test standards. 1. SCOPE This SAE Standard sets forth the procedures to be used in measuring sound levels and determining the time weighted sound level at the operators station(s) of specified off-road self-pr
9、opelled work machines. This document applies to the following work machines which have operator stations as specified in SAE J1116: Crawler Loader Grader Log Skidder Wheel Loader Crawler Tractor with Dozer Pipelayer Dumper Wheel Tractor with Dozer Trencher Tractor Scraper Backhoe Sweeper Roller/Comp
10、actor Hydraulic Excavator Pad Foot Wheel Compactor with Dozer Excavator and Wheel Feller-Buncher The instrumentation requirements and specific work cycles for these machines are described. The method used to calculate the time weighted average sound level at the operator station(s) is specified for
11、Leq(5), or optional exchange rates, during continuous operation in a work cycle representing continuous medium to heavy work. The work cycles provide a repeatable reproduceable means to uniformly measure working machines against a “yard stick. A method to relate the time weighted average sound level
12、 at the operator station(s) to estimate operator sound exposure with part load work, supervision, and rest breaks is also provided. 2. REFERENCES 2.1 Applicable Publications The following publications form a part of the specification to the extent specified herein. For undated references, the latest
13、 edition of the referenced document (including any amendments) applies. 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), www.sae.org. SAE J184 Qualifying a Sound Data A
14、cquisition System SAE J732 Specification DefinitionsLoader SAE J919 Sound MeasurementOff-Road Work Machines OperatorSingular Type SAE J1116 Categories of Off-Road Self-Propelled Work Machines 2.1.2 ANSI Publications Available from ANSI, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900
15、, www.ansi.org. Also see www.nssn.org. ANSI S1.4 Specification for Sound Level Meters ANSI S1.40 Specification for Acoustical Calibrators -,-,- SAE J1166 Revised FEB2008 - 3 - 2.1.3 IEC Publication Available from International Electrotechnical Commission, 3, rue de Verambe, P.O. Box 131, 1211 Geneva
16、 20, Switzerland, Tel: +41-22-919-02-11, www.iec.ch. IEC 61672-1 ElectroacousticsSound Level MetersPart 1: Specifications 2.2 Related Publications The following publications are provided for information purposes only and are not a required part of this document. 2.2.1 ISO Publications Available from
17、 ANSI, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. Also see www.nssn.org. ISO 3411 Earth moving machineryHuman physical dimensions of operators and minimum operator space envelopes ISO 6165 Earth-moving machineryBasic typesVocabulary ISO 1999 AcousticsDetermination
18、 of occupational noise exposure and estimation of noise-induced hearing impairment ISO 9612 AcousticsMeasurement and calculation of occupational noise exposureEngineering method 3. TERMS AND DEFINITIONS 3.1 A-Weighting (dB(A) A-Weighting is the frequency filter that simulates the 40 phone curve on t
19、he equal loudness scale for human hearing response. 3.2 Equivalent-Continuous Sound Level (Leq) The equivalent-continuous sound level is the level of the sound pressure squared averaged over a period of time as defined by, = 2 0 2 10 /)( 1 log10 ref T eq pdttp T L 3.3 Sound Pressure Level (SPL) The
20、sound pressure level is the sound pressure squared as defined by: PaxP P P L ref ref p 6 2 2 10 1020,log10 = = SAE J1166 Revised FEB2008 - 4 - 3.4 Logarithmic Average The logarithmic average is the power based average of two or more sound pressure levels as defined by: = = N i Li N L 1 1 . 0 10 10 1
21、 log10 3.5 Ambient Sound Level The ambient sound level is the maximum equivalent-continuous level measured for the surrounding test area when the machine is not in operation. 4. SYMBOLS AND ABBREVIATIONS ANSI American National Standards Institute (http:/www.ansi.org/) IEC International Electrotechni
22、cal Commission (http:/www.iec.ch/) ISO International Organization for Standardization (http:/www.iso.org/) 5. DATA ACQUISITION AND REDUCTION SYSTEM 5.1 The dynamic range of the system shall include +20 dB to 10 dB of the Leq(5) value that is determined. NOTE: To determine if the appropriate instrume
23、ntation is available for the initial test, the highest value from SAE J919 can be substituted for Leq(5). 5.2 An exchange of 5 dB increase in sound level for halving of the time period shall be applied to the sound level data, unless otherwise noted. 5.3 The A-weighting network (reference IEC 61672-
24、1) shall be applied to the input signal by the system. 5.4 The system shall meet the requirements of IEC 804-(1985) (except use a 5 dB exchange rate instead of an equal energy 3 dB exchange rate), or include a sound level meter meeting requirements of IEC 61672-1 plus a direct integrating exposure a
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