1、DOC 9501-ANI929 1 71 12/04 CORRIGENDUM (English only) ENVIRONMENTAL TECHNICAL MANUAL ON THE USE OF PROCEDURES IN THE NOISE CERTIFICATION OF AIRCRAFT Third Edition - 2004 CORRIGENDUM 1. Please replace existing pages App 4-5 and App 5-4 by the attached new pages dated 17/12/04 bearing the notation “Co
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18、Training Aids Issued annually, the Catalogue lists all publications and audio-visual training aids currently available. Monthly supplements announce new publications and audio-visual training aids, amendments, supplements, reprints, etc. Available free from the Document Sales Unit, ICAO. Copyright I
19、nternational Civil Aviation Organization Provided by IHS under license with ICAONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Doc 9501 AN/929 Environmental Technical Manual on the Use of Procedures in the Noise Certification of Aircraft Approved by the Secretary
20、General and published under his authority Third Edition - 2004 I n t e r n at i on a I C iv i I Av i at i o n Organ iza t i o n Copyright International Civil Aviation Organization Provided by IHS under license with ICAONot for ResaleNo reproduction or networking permitted without license from IHS-,-
21、,-AMENDMENTS No. The issue of amendments is announced regularly in the ICA0 Journal and in the monthly Supplement to the Catalogue of ICA O Publications and Audio-visual Training Aids, which holders of this publication should consult. The space below is provided to keep a record of such amendments.
22、Date Date Entered of issue entered by RECORD OF AMENDMENTS AND CORRIGENDA I AMENDMENTS I CORRIGENDA (ii) Copyright International Civil Aviation Organization Provided by IHS under license with ICAONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWORD The material
23、 for this manual has been prepared by the ICAO Committee on Aviation Environmental Protection (CAEP) and approved during its sixth meeting (CAEP16) in February 2004. The manual is periodically revised under the supervision of the CAEP Steering Group in order to make the most recent information avail
24、able to certificating autho- rities, noise certification applicants and other interested parties in a timely manner, aiming at achieving the highest degree of harmonisation possible. These Steering Group revised versions (SGRs) will be posted on the ICAO website (http:llwww.icao.intl) under “publica
25、tions” until the latest approved revision is submitted to future CAEP for formal endorsement and subsequent publication by ICAO. Comments on this manual, particularly with respect to its application and usefulness, would be appreciated from all States. These comments will be taken into account in th
26、e preparation of subsequent editions. Comments concerning this manual should be addressed to: The Secretary General International Civil Aviation Organization 999 University Street Montral, Quebec H3C 5H7 Canada (iii) Copyright International Civil Aviation Organization Provided by IHS under license w
27、ith ICAONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE OF CONTENTS Page Page Nomenclature . (vi) Chapter 1 . General 1-1 1.1 Purpose . 1-1 1.2 Framework 1-1 1.3 Incorporation of equivalent procedures into the noise compliance demonstration plan . 1-1 1.4 Cha
28、nges to the noise certification levels for derived versions . 1-2 1.5 Re-certification 1-3 Chapter 2 . Equivalent procedures for subsonic jet aeroplanes . 2-1 2.1 Flight test procedures . 2-1 2.2 Analytical procedures . 2-6 2.3 Static engine noise tests and projections to flight noise levels 2-8 Cha
29、pter 3 . Equivalent procedures for propeller-driven aeroplanes over 8 618 kg 3-1 3.1 Flight test procedures . 3-1 3.2 Analytical procedures . 3-4 3.3 Ground static testing procedures . 3-4 Chapter 4 . Equivalent procedures for propeller-driven aeroplanes not exceeding 8 618 kg 4-1 4.1 Source noise a
30、djustments 4-1 4.2 Take-off test and reference procedures 4-2 4.3 Installation of add-on silencers (mufflers) . 4-2 4.4 Guidance on the use of a windscreen . 4-3 Chapter 5 . Equivalent procedures for helicopters . Flight test procedures . 5-1 5.1 Flight test procedures . 5-1 Chapter 6 . Evaluation m
31、ethods 6-1 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 Introduction 6-1 Spectral irregularities . 6-1 Background noise levels . 6-1 Establishment and extension of databases . 6-1 Test environment corrections . 6-2 Inertial navigation systems for aeroplane flight path measurement . 6-2 Computation of EPNL by the
32、 integrated method of adjustment . 6-2 Calculation of the speed of sound . 6-6 Chapter 7 . Measurement and analysis equipment . 7-1 Chapter 8 . Control of noise certification computer program software and documentation related to static-to-flight projection processes . 8-1 8.1 General . 8-1 8.2 Soft
33、ware control procedures: Four key elements 8-1 8.3 Applicability 8-2 Chapter 9 . Guidelines for noise certification of tilt-rotor aircraft . 9-1 Chapter 10 . References . 10-1 Appendix 1 . intervals . APP 1-1 Calculation of confidence Appendix 2 . irregularities . APP 2-1 Identification of spectral
34、Appendix 3 . Guidelines for adjustment of aircraft noise levels for the effects of background noise . APP 3-1 Copyright International Civil Aviation Organization Provided by IHS under license with ICAONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Environmental Te
35、chnical Manual on the Use of Procedures in the Noise Certification of Aircrafi Page Page (vi) Appendix 4. Reference tables and figures Appendix 6. Noise data corrections for tests used in the manual calculation of Effective Perceived Noise Leve1 . APP 4-1 at high altitude test sites. . APP 6-1 Appen
36、dix 5. of reference fiyover height and reference conditions for source noise adjustments for Worked example of calculation Appendix 7. Technical background information on the guidelines for the noise certification of tilt-rotor aircraft APP 7-1 certification of light propeller-driven aeroplanes to C
37、hapter 10 of Annex 16, Volume I. APP 5-1 Appendix 8. Re-certification of an aeroplane. . App 8-1 Copyright International Civil Aviation Organization Provided by IHS under license with ICAONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOMENCLATURE Symbols and Unit
38、s Symbols and abbreviations employed in this manual are consistent with those contained in Annex 16 - Environmental Protection, Volume I - Aircraft Noise (Third Edition, July 1993). Symbol Unit Description C CI D dB EPNL EPNL, F f HR ICD K kt L M MH MAP ms NP N1 OASPL PNL PNLT PNLTr PNLTM S SHP m/S
39、dB m decibel EPNdB EPNdB N Hz ft - - knot dBA - - in. Hg millisecond rpm rpm dB PNdB TPNdB TPNdB TPNdB - kW Speed of sound 90 per cent confidence interval in decibel units relevant to the calculation being made. Jet nozzle diameter based on total nozzle exit area. Effective Perceived Noise Level Eff
40、ective Perceived Noise Level at reference conditions Engine net thrust One-third octave band centre frequency Reference height Inflow control device Constant A-weighted sound pressure level Mach number Propeller helical tip Mach number Manifold air pressure Propeller rotational speed Low pressure ro
41、tor speed of turbine engines Overall sound pressure level Perceived Noise Level Tone Corrected Perceived Noise Level Tone Corrected Perceived Noise Level at reference conditions Maximum Tone Corrected Perceived Noise Level Strouhal number (fDNj) Shaft horsepower Symbol Unit Description SPL TCL TMIC
42、Y CMP “j MO “om Vr Y WCL X hmb et2 P )i 0 dB OC “C misec misec dSeC 1.2 FRAMEWORK Equivalent procedures fall into two broad categories: 1) those which are generally applicable and 2) those which are applicable to a particular aircraft type. For example, some equivalencies dealing with measurement eq
43、uipment may be used for all types of aircraft, but a given test b) to permit and encourage more reliable demonstra- tion of small noise level differences among derived versions of an aeroplane type; and c) to minimize the costs of demonstrating compliance with the requirements of Annex 16, Volume I
44、by 1-1 Copyright International Civil Aviation Organization Provided by IHS under license with ICAONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Environmental Technical Manual on the Use of Procedures in the Noise Certification of Aircraft 1-2 keeping aircraft tes
45、t time, airfield usage, and equipment and personnel costs to a minimum. 1.3.3 The material included in this manual is for technical guidance only. The use of past examples of approved equivalencies does not imply that these equiv- alencies are the only acceptable ones, neither does their presentatio
46、n imply any form of limitation of their appli- cation nor does it imply commitment to further use of these equivalencies. 1.4 CHANGES TO THE NOISE CERTIFICATION LEVELS FOR DERIVED VERSIONS 1.4.1 Many of the equivalent procedures given in this manual relate to derived versions, where the procedure us
47、ed yields the information needed to obtain the noise certification levels of the derived version by adjusting the noise levels of the “flight datum” aircraft (i.e. the most appropriate aircraft for which the noise levels were measured during an approved Annex 16, Volume I flight test demonstration).
48、 1.4.2 The physical differences between the “flight datum” aircraft and the derived version can take many forms, such as an increased take-off weight, an increased engine thrust, changes to the powerplant or propeller or rotor types, etc. Some of these differences will alter the distance between the aircraft and the noise certification reference points, others the noise source characteristics. Procedures used in the determination of the noise certifi: cation levels of the derived versions will therefore depend upon the change to th
