BS ISO 18738-2-2012 Measurement of ride quality Escalators and moving walk《乘运品质的测量 自动电梯和载客传送带》.pdf
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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 18738-2:2012Measurement of ride qualityPart 2: Escalators and moving walksBS ISO 18738-2:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementati
2、on of ISO 18738-2:2012. The UK participation in its preparation was entrusted to T e c h n i c a l Committee MHE/4, Lifts, hoists and escalators.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the nece
3、ssary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012.ISBN 978 0 580 66036 8 ICS 91.140.90 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standa
4、rd was published under the authority of the Standards Policy and Strategy Committee on 31 December 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO 18738-2:2012 ISO 2012Measurement of ride quality Part 2: Escalators and moving walksMesure de la qualit de dplacement Partie 2
5、: Escaliers mcaniques et trottoirs roulantsINTERNATIONAL STANDARDISO18738-2First edition2012-10-15Reference numberISO 18738-2:2012(E)BS ISO 18738-2:2012ISO 18738-2:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of t
6、his publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-121
7、1 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 18738-2:2012ISO 18738-2:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Measuring i
8、nstrumentation 34.1 General . 34.2 Characteristics . 34.3 Processing of vibration data 44.4 Environmental effects . 44.5 Sound measurement requirements 44.6 Calibration requirements . 45 Measuring and reporting . 55.1 General measuring conditions . 55.2 General procedure . 55.3 Vibration measurement
9、 55.4 Sound measurement 95.5 Reporting of results . 11Annex A (informative) Ride quality corrected sound pressure estimation 14Bibliography .16BS ISO 18738-2:2012ISO 18738-2:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
10、 (ISO member bodies). The work of preparing International 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,
11、governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/I
12、EC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the memb
13、er bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 18738-2 was prepared by Technical Committee ISO/TC 178, Lifts, escalators
14、 and moving walks.ISO 18738 consists of the following parts, under the general title Measurement of ride quality: Part 1: Lifts (elevators) Part 2: Escalators and moving walksiv ISO 2012 All rights reservedBS ISO 18738-2:2012ISO 18738-2:2012(E)IntroductionThe objective of this part of ISO 18738 is t
15、o encourage industry-wide uniformity in the definition, measurement, processing and expression of vibration and noise signals that comprise ride quality of escalators and moving walks.The aim of such uniformity is to benefit industry clients by reducing variability in the results of ride quality mea
16、surements caused by differences in the methods of acquiring and quantifying the signals.This part of ISO 18738 is intended to be referred to by those parties interested in:a) developing manufacturing specifications and calibration methods for instrumentation;b) defining the scope of the specificatio
17、ns for ride quality in contracts; andc) measuring ride quality of escalators and moving walks in accordance with an international standard.This part of ISO 18738 is intended to produce ride quality measurement methods and results which:a) are simple to understand without specialized knowledge of noi
18、se and vibration analysis;b) correlate well with human response to ensure plausibility; andc) are accountable via calibration procedures, which are traceable to national standards.Experience in the escalator and moving walk industry has shown that passenger perception and sound pressure levels measu
19、red while travelling on an escalator or moving walk can be influenced by the presence of extraneous noise sources and by the acoustic characteristics of the environment in which the unit is installed. Additionally, the proximity of the escalator or moving walk to strong reflecting surfaces such as w
20、alls, ceilings or diagonally opposite units can also influence the sound pressure level measured. These influences can cause a sound pressure level measurement to significantly overestimate the sound level emitted exclusively by the unit.In order to address this issue, this part of ISO 18738 defines
21、 the methodology for measuring sound pressure level that corresponds to passenger perception and additionally defines the methods that should be used if further understanding of the result is required in order to quantify the noise emitted by the unit as compared to the background or environmental c
22、ontributions. ISO 2012 All rights reserved vBS ISO 18738-2:2012BS ISO 18738-2:2012Measurement of ride quality Part 2: Escalators and moving walks1 ScopeThis part of ISO 18738 specifies requirements and methodology for the measurement and reporting of escalator and moving walk ride quality. This part
23、 of ISO 18738 does not specify acceptable or unacceptable ride quality values.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the refer
24、enced document (including any amendments) applies.ISO 2041, Vibration and shock VocabularyISO 8041, Human response to vibration Measuring instrumentationISO 11201, Acoustics Noise emitted by machinery and equipment Determination of emission sound pressure levels at a work station and at other specif
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