1、March 2009DEUTSCHE NORM English price group 12No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.160; 53.060!$VJc“1513
2、964www.din.deDDIN EN 13490Mechanical vibration Industrial trucks Laboratory evaluation and specification of operator seat vibration(includes Amendment A1:2008)English version of DIN EN 13490:2009-03Mechanische Schwingungen Flurfrderzeuge Laborverfahren zur Bewertung sowie Spezifikation der Schwingun
3、gen desMaschinenfhrersitzes (enthlt nderung A1:2008)Englische Fassung DIN EN 13490:2009-03SupersedesDIN EN 13490:2002-02See start of validitywww.beuth.deDocument comprises 26 pagesDIN EN 13490:2009-03 2 Start of validity This standard is due to take effect on 1 March 2009. DIN EN 13490:2002-02 may b
4、e used in parallel until 28 December 2009. National foreword This standard has been prepared by Technical Committee CEN/TC 231 “Mechanical vibration and shock” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Akustik, Lrmminderung und Schwi
5、ngungstechnik im DIN und VDI (Acoustics, Noise Control and Vibration Engineering Standards Committee in DIN and VDI), Technical Committee NA 001-03-07-03 (NALS/VDI C 7.3) Sitzprfungen und biodynamische Modelle. The DIN Standards corresponding to the International Standards referred to in this docume
6、nt are as follows: ISO 2631-1 VDI 2057 Blatt 1 ISO 5053 DIN ISO 5053 The national standards are given in Annex NA “Bibliography”. Amendments This standard differs from DIN EN 13490:2002-02 as follows: a) Normative references have been updated. b) Annex ZB (informative) “Relationship between this Eur
7、opean Standard and the Essential Requirements of EU Directive 2006/42/EC” has been added. Previous editions DIN EN 13490: 2002-02 National Annex NA (informative) Bibliography DIN ISO 5053, Powered industrial trucks Terminology VDI 2057 Blatt 1, Human exposure to mechanical vibrations Whole-body vibr
8、ation EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13490:2001+A1 November 2008 ICS 13.160; 53.060 Supersedes EN 13490:2001English Version Mechanical vibration - Industrial trucks - Laboratory evaluation and specification of operator seat vibration Vibrations mcaniques - Chariots industriels
9、- Evaluation en laboratoire et spcification des vibrations transmises loprateur par le sige Mechanische Schwingungen - Flurfrderzeuge - Laborverfahren zur Bewertung sowie Spezifikation der Schwingungen des Maschinenfhrersitzes This European Standard was approved by CEN on 20 August 2001 and includes
10、 Amendment 1 approved by CEN on 5 October 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations 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 concern
11、ing such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European 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
12、language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuani
13、a, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CE
14、N All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13490:2001+A1:2008: EContents Page Foreword. 3 Introduction 4 1 Scope . 4 2 Normative references . 5 3 Terms and definitions, symbols and abbreviations 5 3.1 Terms and definitions 5 3.2
15、 Symbols and abbreviations . 6 4 General. 9 5 Test conditions and test procedure 9 5.1 Simulation of vibration. 9 5.2 Test seat 9 5.3 Test person and posture 10 5.4 Input vibration. 10 5.5 Tolerances on input vibration . 11 6 Acceptance values . 12 6.1 SEAT (Seat Effective Amplitude Transmissibility
16、) factor. 12 6.2 Damping performance 12 7 Seat identification. 13 Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC“. 22 Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU
17、Directive 2006/42/EC“. 23 Bibliography. 24 EN 13490:2001+A1:2008 (E) DIN EN 13490:2009-03 28 Test report . 13 Foreword This document (EN 13490:2001+A1:2008) has been prepared by Technical Committee CEN/TC 231 “Mechanical vibration and shock“, the secretariat of which is held by DIN. This European St
18、andard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2008-10-05. T
19、his document supersedes EN 13490:2001. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential require
20、ments of EC Directive(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document.“ According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Sta
21、ndard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN
22、 13490:2001+A1:2008 (E) DIN EN 13490:2009-03 3Introduction The operators of industrial trucks are often exposed to a low-frequency vibration environment mainly caused by the movement of the vehicles over uneven ground. The seat constitutes the last stage of suspension before the driver. To be effici
23、ent at attenuating the vibration, the suspension seat should be chosen according to the dynamic characteristics of the vehicle. The performance criteria provided in this European Standard have been set in accordance with what is attainable using what is at present the best design practice. They do n
24、ot necessarily ensure the complete protection of the operator against effects of vibration and shock. They may be revised in the light of future developments and improvements in suspension design. Performance criteria obtained in accordance with this European Standard may be useful to manufacturers
25、of industrial trucks when selecting seats for possible use in their products. However, to satisfy fully the requirements of the !EU“ Machinery Directive it is important for suppliers of mobile machinery to demonstrate that the seat supplied reduces the vibration in the specified machine to the lowes
26、t level that can be reasonably achieved. The test inputs included in this European Standard are based on a very large number of measurements taken in situ on industrial trucks while they were used under severe but typical operating conditions. The test method is based on EN 30326-1, which is a gener
27、al method applicable to seats for different types of vehicles. 1 Scope 1.1 This European Standard is applicable to operator seats used on industrial trucks as defined in ISO 5053:1987 irrespective of power supply, type of equipment, lifting mechanism and tyres. It also applies to seats for other tru
28、cks not covered by ISO 5053:1987, e.g. variable-reach trucks and lowlift order picking trucks. 1.2 This European Standard specifies, in accordance with EN 30326-1, a laboratory method for measuring and evaluating the effectiveness of the seat suspension in reducing the vertical wholebody vibration t
29、ransmitted to the operator of industrial trucks at frequencies between 1 Hz and 20 Hz. 1.3 This European Standard defines the input spectral classes required for the following industrial trucks. Each class defines a group of machines having similar vibration characteristics: Platform trucks, trucks
30、rider-controlled, etc. with wheel mean diameter below 200 mm and highload non-rubber solid tyres (category 1)1)Reach trucks, articulated trucks, etc. with wheel mean diameter below 450 mm and high-load non-rubber solid tyres or cylindrical/conical base rubber solid tyres (category 2)1) Straddle truc
31、ks, trucks with wheel mean diameter below 645 mm and rubber solid or pneumatic tyres (category 3)1) Straddle trucks, trucks with wheel mean diameter between 645 mm and 900 mm and rubber solid or pneumatic tyres (category 4a)1) Straddle trucks, trucks with wheel mean diameter between 900 mm and 1 200
32、 mm and rubber solid or pneumatic tyres (category 4b)1)Trucks with wheel mean diameter between 1 200 mm and 2 000 mm and rubber solid or pneumatic tyres (category 5)1) EN 13490:2001+A1:2008 (E) DIN EN 13490:2009-03 4 All-terrain trucks (category 6)1)1.4 This European Standard specifies performance c
33、riteria to be achieved by seats intended for each of the above-mentioned groups of machines. 1.5 The tests and criteria defined in this European Standard are intended for operator seats used in industrial trucks of conventional design. NOTE Other tests may be appropriate for machines with design fea
34、tures that result in significantly different vibration characteristics. 1.6 This European Standard is only concerned with the vertical component of whole-body vibration. Vibration which reaches the operator other than through his seat, for example that sensed by his feet on the platform or control p
35、edals or by his hands on the steering-wheel, is not covered. 2 Normative references !The 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 referenced document
36、(including any amendments) applies.“ !deleted text“ EN 30326-1:1994, Mechanical vibration Laboratory method for evaluating vehicle seat vibration Part 1: Basic requirements (ISO 10326-1:1992) !EN ISO 8041, Human response to vibration Measuring instrumentation (ISO 8041:2005)“ EN ISO 13090-1, Mechani
37、cal vibration and shock Guidance on safety aspects of tests and experiments with people Part 1: Exposure to whole-body mechanical vibration and repeated shock (ISO 13090-1:1998) ISO 2631-1:1997, Mechanical vibration and shock Evaluation of human exposure to whole-body vibration Part 1: General requi
38、rements ISO 5053:1987, Powered industrial trucks Terminology ISO 5805:1997, Mechanical vibration and shock Human exposure Vocabulary !deleted text“ 3 Terms and definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this European Standard, the terms and definitions given
39、 in ISO 5805:1997 and the following apply. 3.1.1 whole-body vibration vibration transmitted to the body as a whole through the buttocks of a seated operator 1) See !EN 13059“. EN 13490:2001+A1:2008 (E) DIN EN 13490:2009-03 53.1.2 input spectral class machines having similar ride vibration characteri
40、stics at the seat attachment point, grouped by virtue of various mechanical characteristics 3.1.3 operator seat that portion of the machine provided for the purpose of supporting the buttocks and back of the seated operator, including any suspension system and other mechanisms provided (for example,
41、 for adjusting the seat position) 3.1.4 frequency analysis process of arriving at a quantitative description of a vibration amplitude as a function of frequency 3.1.5 measuring period time duration in which vibration data for analysis is obtained 3.2 Symbols and abbreviations For the purposes of thi
42、s European Standard, the following symbols and abbreviations apply: aP(fr) unweighted r.m.s. value of the measured vertical acceleration at the platform at the resonance frequency a*P12, a*P34unweighted r.m.s. value of the target vertical acceleration at the platform under the seat (see Figure 1) be
43、tween frequencies f1and f2, or f3and f4aP12, aP34unweighted r.m.s. value of the measured vertical acceleration at the platform between frequencies f1and f2, or f3and f4aS(fr) unweighted r.m.s. value of the measured vertical acceleration at the seat disc at the resonance frequency a*wP12, a*wP34weigh
44、ted r.m.s. value of the target vertical acceleration at the platform between frequencies f1and f2, or f3and f4awP12weighted r.m.s. value of the measured vertical acceleration at the platform between frequencies f1and f2awS12 weighted r.m.s. value of the measured vertical acceleration at the seat dis
45、c (see Figure 1) between frequencies f1and f2Beresolution bandwidth, Hz EM Earth-moving Machinery f frequency, Hz frfrequency at resonance GP(f) measured PSD of the vertical vibration at the platform (seat base) G*P (f) target PSD of the vertical vibration at the platform (seat base) G*PL (f) lower
46、limit for the measured PSD of the vertical vibration at the platform (seat base) EN 13490:2001+A1:2008 (E) DIN EN 13490:2009-03 6G*PU(f) upper limit for the measured PSD of the vertical vibration at the platform (seat base) H(fr) transmissibility at resonance HP high-pass filter IT Industrial Truck
47、LP Low-pass filter PSD Power spectral density expressed as acceleration squared per unit bandwidth, (m/s2)2/Hz r.m.s. root mean square SEAT Seat Effective Amplitude Transmissibility factor Tssampling time, s. EN 13490:2001+A1:2008 (E) DIN EN 13490:2009-03 7Key 1 Seat backrest 2 Seat pan 3 Accelerome
48、ter disc on the seat pan (S) 4 Seat suspension 5 Platform 6 Accelerometer on the platform (P) 7 Base of the seat Provision shall be made for adjustment of the angles of the knees, the ankles and the backrest (if possible) (see 5.2). Figure 1 Posture of the test person EN 13490:2001+A1:2008 (E) DIN E
49、N 13490:2009-03 84 General 4.1 The laboratory simulated machine vertical vibration, specified as input spectral class, is based on representative measured data from machines in severe but typical working conditions. The input spectral class is a representative envelope for the machines within the class, therefore the laboratory test is more severe than the typical vibration environment of any specific machine. 4.2 Two criteria are used for the evaluation of seat: a) the Seat Effective Amplitude Transmissibility (SEAT)
