1、BSI Standards PublicationBS EN ISO 16231-2:2015Self-propelled agriculturalmachinery Assessment ofstabilityPart 2: Determination of static stability andtest proceduresBS EN ISO 16231-2:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO16231-2:2015.The UK pa
2、rticipation in its preparation was entrusted to TechnicalCommittee AGE/6, Agricultural tractors and forestry machinery.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contra
3、ct. Users are responsible for its correctapplication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 79278 6ICS 65.060.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authori
4、ty of theStandards Policy and Strategy Committee on 31 October 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 16231-2 September 2015 ICS 65.060.01 English Version Self-propelled agricultural machinery - Assessme
5、nt of stability - Part 2: Determination of static stability and test procedures (ISO 16231-2:2015) Machines agricoles automotrices - valuation de la stabilit - Partie 2: Dtermination de la stabilit statique et modes opratoires dessai (ISO 16231-2:2015) Selbstfahrende Landmaschinen - Bewertung der St
6、andfestigkeit - Teil 2: Bestimmung der statischen Standfestigkeit und Prfverfahren (ISO 16231-2:2015)This European Standard was approved by CEN on 29 August 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standar
7、d 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English,
8、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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulga
9、ria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Tur
10、key andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. R
11、ef. No. EN ISO 16231-2:2015 EBS EN ISO 16231-2:2015EN ISO 16231-2:2015 (E) 3 European foreword This document (EN ISO 16231-2:2015) has been prepared by Technical Committee ISO/TC 23 “Tractors and machinery for agriculture and forestry” in collaboration with Technical Committee CEN/TC 144 “Tractors a
12、nd machinery for agriculture and forestry” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2016, and conflicting national standards shall be withdr
13、awn at the latest by March 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given
14、 to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN-CENELEC Internal Regulations, the nati
15、onal standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lit
16、huania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 16231-2:2015 has been approved by CEN as EN ISO 16231-2:2015 without any modification. BS EN ISO 16231-2:2015EN
17、 ISO 16231-2:2015 (E) 4 Annex ZA (informative) Relationship between this European standard and the Essential Requirements of EU Directive 2006/42/EC This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to provide a m
18、eans of conforming to Essential Requirements of the New Approach Directive 2006/42/EC on machinery. Once this standard is cited in the Official Journal of the European Union under that Directive and has been implemented as a national standard in at least one Member State, compliance with the normati
19、ve clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the relevant Essential Requirement 3.4.3 of that Directive and associated EFTA regulations. WARNING Other requirements and other EU Directives may be applicable to the product(s) fa
20、lling within the scope of this standard. BS EN ISO 16231-2:2015ISO 16231-2:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Determination of the centre of gravity (COG) of a self-propelled machine . 24.1 Method to determine and to calculate the centre o
21、f gravity of the un-laden machine . 24.2 Remarks and items to observe during this procedure . 24.3 Methods to determine the centre of gravity of a laden machine or a machine with attachments 54.3.1 Graphical method 54.3.2 Mathematical method 75 Static overturning angle (SOA). 85.1 General . 85.2 Lat
22、eral roll-over: Machines with one fixed and one swivelling axle (without axle swivel limiting device) 85.2.1 General 85.2.2 Graphical determination of the stability . 95.2.3 Determination of the stability by calculation .105.3 Lateral roll-over: Machines with one fixed and one swivelling axle with s
23、wivelling angle limiting device . 115.4 Lateral rollover: machines without swivelling axle .135.4.1 Machines on tracks .135.4.2 Machines with devices to lock the swivelling axle or to modify the stability triangle 135.4.3 Machines with individual wheel suspension 135.5 Tip forward and tip rearward .
24、 135.5.1 Tip forward 135.5.2 Tip rearward . 135.6 Body levelling systems 145.7 Alternative methods 146 Comparison of SOA and RSSA .14Annex A (informative) Example of calculation of centre of gravity (see Clause 4) 15Annex B (informative) Example of calculation of static overturning angle (see Clause
25、 5) .16Annex C (normative) Calculation of RSSA .18Annex D (informative) Impact of dynamic effects on roll-over or tip-over .19 ISO 2015 All rights reserved iiiContents PageBS EN ISO 16231-2:2015ISO 16231-2:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federat
26、ion of national standards bodies (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 committe
27、e. International organizations, 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.The procedures used to develop this document and th
28、ose intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2
29、(see www.iso.org/directives).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. Details of any patent rights identified during the development of the do
30、cument will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms an
31、d expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 23, Tractors and machinery for a
32、griculture and forestry, Subcommittee SC 3, Safety and comfort.ISO 16231 consists of the following parts, under the general title Self-propelled agricultural machinery Assessment of stability: Part 1: Principles Part 2: Determination of static stability and test proceduresiv ISO 2015 All rights rese
33、rvedBS EN ISO 16231-2:2015ISO 16231-2:2015(E)IntroductionSelf-propelled agricultural machinery with a ride-on operator (driver) can be exposed to the hazard of rolling or tipping over during the intended operation. A risk assessment is used to determine whether this hazard is to be considered in cas
34、e of a specific machine and the protective measures to be used in order to avoid or minimize this hazard for the ride-on operator.The risk assessment considers the operating conditions in which the machine is intended to be used, the physical properties of the machine, and the required skills to ope
35、rate the machine as well as any other parameter which can have an impact on the risk for roll- or tip-over. ISO 2015 All rights reserved vBS EN ISO 16231-2:2015BS EN ISO 16231-2:2015Self-propelled agricultural machinery Assessment of stability Part 2: Determination of static stability and test proce
36、dures1 ScopeThis part of ISO 16231 specifies a method to determine the centre of gravity of un-laden self-propelled machines, a method to determine the centre of gravity of laden machines and combinations with attachments, and methods to determine the static overturning angle.NOTE Requirements relat
37、ed to self-protective structures and ROPS are to be dealt with in a separate International Standard.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited
38、applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 789-6, Agricultural tractors Test procedures Part 6: Centre of gravityISO 16231-1, Self-propelled agricultural machinery Assessment of stability Part 1: Principles3 Terms and definit
39、ionsFor the purposes of this document, the terms and definitions given in ISO 16231-1 and the following apply.3.1maximum operating slopeMOSvalue indicating, for each type of self-propelled machine and each direction, the maximum slope in (%) on which the machine is intended to work according to good
40、 agricultural practice3.2slope compensation systemsystem to improve the functional performance of an agricultural machine working on slopes, without levelling the main body of the machine, such as a levelling of internal components, adjusting the kinematics of separating systems, or adjusting air fl
41、ow or pattern or both3.3body levelling systemsystem to improve the function performance, drivers comfort, ability to work on slopes, and stability of an agricultural machine working on slopes, by means of levelling the main body of the machine in a longitudinal or transversal sense or a combination
42、of bothINTERNATIONAL STANDARD ISO 16231-2:2015(E) ISO 2015 All rights reserved 1BS EN ISO 16231-2:2015ISO 16231-2:2015(E)4 Determination of the centre of gravity (COG) of a self-propelled machine4.1 Method to determine and to calculate the centre of gravity of the un-laden machineThe centre of gravi
43、ty of the un-laden machine is determined by means of scales and support stands (see Tables 1 and 2 and Figures 1, 2, and 3).4.2 Remarks and items to observe during this procedure4.2.1 Follow the procedure as outlined in ISO 789-6; this method is based on the increasing load on the supporting axle wh
44、en the other axle is lifted and supported on a certain height; the lifting angle and the increased load on the scale allow determination of the height of the COG.4.2.2 It is recommended to use steel wheels in order to avoid deviations due to changing wheel radius under changing load conditions. For
45、calculation of the COG with the actual tires, see 4.3.Any suspension system shall be locked. If locking the suspension system is not possible, then inflate all tires up to the maximum permissible pressure as specified by the tyre manufacturer. The difference in radius of the wheels on the fixed axle
46、 between horizontal and raised position shall not be higher than 1,5 % of the wheel radius.4.2.3 Ensure that the plane of the scale is horizontal and flush with the ground plane.4.2.4 Wheels on the scale shall be free to rotate, in order to exclude tangential forces on the tires. Therefore, the park
47、ing brake shall not be applied and the gearbox shall be in neutral or the transmission shall be in the position for towing the vehicle.4.2.5 Although not required, lifting the side of the swivelling axle is preferred; in most cases, this is the axle with the smallest diameter wheels.4.2.6 Raised whe
48、els shall rest on wheel stands before reading the weight on the scale.4.2.7 For easy installation of the wheel stands, it can be necessary to lock the swivelling axle with wedges when lifting the machine.When resting on the wheel stands, the wedges shall be removed.4.2.8 The accuracy of this method
49、depends on the height of wheel stand as a proportion of the wheel base and the accuracy of the scale.Accuracy of weighing during five consecutive measurements: all values shall fall within a range of 1,0 % of the maximum measured load from the fixed axle in raised position.4.2.9 Calculate the COG, using the deviation of the accuracy of the scale and determine the deviation of the height of the COG.This deviation shall not exceed 4 %. In case the value exceeds 4 %, the height of the wheel stands shall be increased in order to decrease th
