《BS-EN-ISO-11688-1-1998.pdf》由会员分享，可在线阅读，更多相关《BS-EN-ISO-11688-1-1998.pdf（36页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN ISO 11688-1:1998 Acoustics Recommended practice for the design of low-noise machinery and equipment Part 1: Planning The European Standard EN ISO 11688-1:1998 has the status of a British Standard ICS 17.140.20; 21.020 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:2
2、2:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 11688-1:1998 This British Standard, having been prepared under the direction of the Health and Environment Sector Board, was published under the authority of the Standards Board and comes into effect on 15 August 1998 BSI 04-1999 ISBN 0 580 2
3、9829 9 National foreword This British Standard is the English language version of EN ISO 11688-1:1998. It is identical with ISO/TR 11688-1:1995. The UK participation in its preparation was entrusted by Technical Committee EH/1, Acoustics, to Subcommittee EH/1/4, Machinery noise, which has the respon
4、sibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A li
5、st of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC standards normally include an annex which lists normative references to international publications with their corresponding European
6、publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British
7、 Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front c
8、over, an inside front cover, pages i and ii, the EN ISO title page, page 2, the ISO TR title page, pages ii to iv, pages 1 to 24, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendme
9、nt table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:22:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 11688-1:1998 BSI 04-1999i Contents Page National forewordInside front cover Foreword2 Fore
10、wordiii Text of ISO TR 11688-11 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:22:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:22:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE
11、NORM EN ISO 11688-1 June 1998 ICS 17.140.20; 21.020 Descriptors: See ISO document English version Acoustics Recommended practice for the design of low-noise machinery and equipment Part 1: Planning (ISO/TR 11688-1:1995) Acoustique Pratique recommande pour la conception de machines et dquipements bru
12、it rduit Partie 1: Planification (ISO/TR 11688-1:1995) Akustik Richtlinien fr die Konstruktion lrmarmer Maschinen und Gerte Teil 1: Planung (ISO/TR 11688-1:1995) This European Standard was approved by CEN on 23 November 1997. CEN members are bound to comply with the CEN/CENELEC Internal Regulations
13、which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European
14、Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national
15、standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Ko
16、mitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11688-1:1998 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:22:24 GMT+00:00 2006, Uncon
17、trolled Copy, (c) BSI EN ISO 11688-1:1998 BSI 04-1999 2 Foreword This European Standard has been prepared by ISO/TC 43 “Acoustics” and has been taken over by CEN/TC 211 “Acoustics”, the secretariat of which is held by DS. This European Standard has been prepared under a mandate given to CEN by the E
18、uropean Commission and the European Free Trade Association, and supports essential requirements of EU Directives. This European Standard has to be implemented at national level, either by publication of an identical text or by endorsement, at the latest by December 1998, and conflicting national sta
19、ndards shall be withdrawn at the latest by December 1998. For relationship with EU Directives, see informative Annex ZB which is an integral part of this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implemen
20、t this document: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. WARNING This document was published as a European Standard to provide a harmonized base
21、 for national standards. It is a guidance document and is not intended to be exhaustive, but to highlight important aspects to which attention should be given. Endorsement notice The text of the International Standard ISO/TR 11688-1:1995 was approved by CEN as a European Standard with the following
22、addition to clause 1 “Scope”: ISO/TR 11688-1 does not deal directly with the reduction of noise emission of the work piece itself. Nevertheless, the present theory from excitation through transmission to radiation, can be generally applied to estimating the noise generation of work pieces and hence
23、its reduction. Normative references to International Standards which have been published as European Standards are given in normative Annex ZA. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:22:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sat N
24、ov 18 04:22:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11688-1:1998 ii BSI 04-1999 Contents Page Forewordiii Introduction1 1Scope1 2References1 3Definitions1 4Methodical design and acoustic aspects3 5Conceptual and detailed design4 6Low-noise prototyping16 7Final testing17 Annex A Summary
25、of design rules18 Annex B Noise control requirements for design20 Annex C Information to be reported22 Annex D Bibliography24 Annex ZA (normative) Normative references to international publications with their relevant European publications24 Annex ZB (informative) Clauses of this European Standard a
26、ddressing essential requirements or other provisions of EU Directives Inside back cover Figure 1 Stages of the design procedure; support of design by noise control methods2 Figure 2 Causal chain of noise generation5 Figure 3 Basic model of noise generation in machines5 Figure 4 Hydrostatic power pac
27、k6 Figure 5 Acoustical model of power pack7 Figure 6 Reflection of structure-borne sound at discontinuities15 Table 1 Hydrostatic power pack; noise sources8 Table 2 Hydrostatic power pack; transmission paths8 Table 3 Hydrostatic power pack; radiating surfaces9 Table 4 Hydrostatic power pack: effect
28、of noise control measures9 Table B.1 List of acoustic requirements (example)22 Table C.1 Checklist for information to be reported on noise control according to this International Technical Report23 Descriptors: Acoustics, machinery, equipment, noise (sound), engine noise, design, planning. Licensed
29、Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:22:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11688-1:1998 BSI 04-1999iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Int
30、ernational Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison w
31、ith ISO, also take part in the work. ISO collaborates closely with the Internation Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The main task of technical committees is to prepare International Standards, but in exceptional circumstances a technical committee
32、 may propose the publication of a Technical Report of one of the following types: type 1, when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts; type 2, when the subject is still under technical development or where for any other reas
33、on there is the future but not immediate possibility of an agreement on an International Standard; type 3, when a technical committee has collected data of a different kind from that which is normally published as an International Standard (“state of the art”, for example). Technical Reports of type
34、s 1 and 2 are subject to review within three years of publication, to decide whether they can be transformed into International Standards. Technical Reports of type 3 do not necessarily have to be reviewed until the data they provide are considered to be no longer valid or useful. ISO/TR 11688-1, wh
35、ich is a Technical Report of type 3, was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise. ISO 11688 consists of the following parts, under the general title Acoustics Recommended practice for the design of low-noise machinery and equipment. Part 1: Planning Technical R
36、eport; Part 2: Introduction into physics of low-noise design. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:22:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:22:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11688-1:
37、1998 BSI 04-19991 Introduction This International Technical Report provides a guideline for the design of low-noise machinery. Most of the existing International Technical Reports prepared in ISO/TC 43/SC 1 specify methods for the measurement and/or evaluation of noise. The final objective of this I
38、nternational Technical Report, however, will be noise control in existing machinery and noise control at the design stage. It is important that non-acoustic engineers are engaged in noise control practice. It is of great importance for these engineers to have a basic knowledge of noise generation an
39、d propagation characteristics and to understand the basic principles of noise control measures. Hence, this International Technical Report also serves as an introduction into acoustical terms, and as a basis to the acquisition of further knowledge in noise control. It is strongly required to support
40、 the dissemination of the design rules given here through standardization. Such considerations have led to the preparation of International Technical Reports in the area of noise control. 1 Scope This International Technical Report is an aid to understanding the basic concepts of noise control in ma
41、chinery and equipment. The recommended practice presented here is intended to assist the designer at any design stage to control the noise of the final product. Methodical development of products was chosen as a basis for the structure of this document (see Clause 4). The list of design rules given
42、in this International Technical Report is not exhaustive. Other technical measures for reducing noise at the design stage may be used if their efficacy is identical or higher. To solve problems going beyond the scope of this International Technical Report, the designer can refer to the bibliography
43、in Annex D, which presents the general state of acoustic handbooks at the time of publication. Furthermore, reference is made to the numerous technical publications dealing with acoustical problems. 2 References ISO 3744:1994, Acoustics Determination of sound power levels of noise sources using soun
44、d pressure Engineering method in an essentially free field over a reflecting plane. ISO 3746:, Acoustics Determination of sound power levels of noise sources Survey method employing an enveloping measurement surface over a reflecting plane1). ISO 4871:, Acoustics Declaration and verification of nois
45、e emission values of machinery and equipment1). ISO 9611:, Acoustics Characterization of sources of structure-borne sound with respect to the airborne sound radiation of connected structures Measurement of velocity at the contact points of machinery when resiliently mounted1). ISO 9614-1:1994, Acous
46、tics Determination of sound power levels of noise sources using sound intensity Part 1: Measurement at discrete points. ISO 9614-2:, Acoustics Determination of sound power levels of noise sources using sound intensity Part 2: Measurement by scanning1). ISO 11200:, Acoustics Noise emitted by machiner
47、y and equipment Guidelines for the use of basic standards for the determination of emission sound pressure levels at the work station and at other specified positions1). ISO 11689:, Acoustics Systematic collection and comparison of noise-emission data for machinery and equipments1). 3 Definitions Fo
48、r the purpose of this International Technical Report the following definitions apply: 3.1 airborne, liquid-borne and structure-borne noise sound propagating through air, a liquid or a solid structure, respectively 3.2 active noise components components of machinery, which generate noise. In many cas
49、es these are the power converting devices generating mechanical work from power resources, such as electrical, mechanical or magnetic energy, hydraulic pressure, internal forces, or friction. Other noise “components” may be regions with non-steady flow and contact surfaces between moving parts 1) To be published. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:22:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11688-1:1998 2 BSI 04-1999 Figure 1 Stages o