SIST EN 1299:2000+A1:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Mehanske vibracije in udarci - Vibracijska izolacija strojev - Podatki za uporabo vrst izolacijMechanische Schwingungen und Stöße - Schwingungsisolierung von Maschinen - Angaben für den Einsatz von QuellenisolierungenVibrations et chocs mécaniques - Isolation vibratoire des machines - Informations pour la mise en oeuvre de l'isolation des sourcesMechanical vibration and shock - Vibration isolation of machines - Information for the application of source isolation17.160Vibracije, meritve udarcev in vibracijVibrations, shock and vibration measurementsICS:Ta slovenski standard je istoveten z:EN 1299:1997+A1:2008SIST EN 1299:2000+A1:2009en01-januar-2009SIST EN 1299:2000+A1:2009SLOVENSKI
STANDARD



SIST EN 1299:2000+A1:2009



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1299:1997+A1
November 2008 ICS 17.160 Supersedes EN 1299:1997English Version
Mechanical vibration and shock -Vibration isolation of machines - Information for the application of source isolation
Vibrations et chocs mécaniques - Isolation vibratoire des machines - Informations pour la mise en oeuvre de l'isolation des sources
Mechanische Schwingungen und Stöße - Schwingungsisolierung von Maschinen - Angaben für den Einsatz von Quellenisolierungen This European Standard was approved by CEN on 30 December 1996 and includes 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 concerning 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 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1299:1997+A1:2008: ESIST EN 1299:2000+A1:2009



EN 1299:1997+A1:2008 (E) 2 Contents Page Foreword.3 Introduction.4 1 Scope.4 2 Normative references.4 3 Definitions.5 4 Purpose of source isolation.5 5 Applicability of vibration isolation.5 6 Information for the choice of an isolation system for a machine.6 6.1 General.6 6.2 Information to be supplied by the machine manufacturer.6 6.2.1 Physical data of the machine.6 6.2.1.1 Machine drawing.6 6.2.1.2 Vibration excitation.6 6.2.1.3 Special requirements.7 6.2.1.4 Electrical features.7 6.2.1.5 Special requirements for mechanical stability.7 6.2.2 Physical data of the isolation system.7 6.2.2.1 General data.7 6.2.2.2 Dynamic behaviour.8 6.2.2.3 Durability.8 6.2.2.4 Environmental data.8 6.2.2.5 Maintenance data.8 6.3 Information that the machine manufacturer shall require from the user.9 6.3.1 Technical information on the surrounding structure of the machine.9 6.3.2 Vibration and shock situation of the surrounding structure.9 6.3.3 Climatic environment.9 7 Guidelines for the validation of isolation efficiency.9 Annex A (informative)
Elements for vibration isolation.11 A.1 Springs.11 A.1.1 Elastomer springs.11 A.1.2 Metal springs.12 A.1.3 Air springs.14 A.2 Dampers.15 A.3 Combinations of springs and dampers.16 A.4 Active vibration isolators.17 Annex B (informative)
Bibliography.18 Annex ZA (informative)
!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC".19 Annex ZB (informative)
!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC".20
SIST EN 1299:2000+A1:2009



EN 1299:1997+A1:2008 (E) 3 Foreword This document (EN 1299:1997+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 Standard 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. This document supersedes EN 1299:1997. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ". This European Standard has been prepared under a mandate given 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 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 Standard: 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.
SIST EN 1299:2000+A1:2009



EN 1299:1997+A1:2008 (E) 4 Introduction Vibration isolation is a measure used to either reduce significantly any transmission of periodic, shock or random type forces from a machine into surrounding structures (source isolation, protection from emission) or to protect sensitive machines, instruments, buildings and people from vibration received by their surroundings (receiver isolation, protection from immission). In both cases, the use of vibration isolators creates a mass-spring system whose vibration response is critically influenced by the characteristics of the source of vibration, the dynamic characteristics of the machine, the structure to which the machine is mounted and the characteristics of the elastic and damping elements. Optimization of the system to satisfy protection criteria requires a full and detailed knowledge of all the factors which influence the design and effective application of vibration isolation to a particular machine or installation. The interchange of information between the machinery manufacturer, the isolation supplier and the user plays a key role in achieving this. 1 Scope This European Standard gives guidelines to ensure that manufacturers of machines provide adequate information on application of vibration isolation to reduce the risks arising from vibration generated by their machines. Guidelines are also provided to ensure that users furnish sufficient information regarding their applications to suppliers of machines or, where applicable, to the supplier of the isolation system, to enable the optimum selection and design of vibration isolation. This European Standard is restricted to source isolation. Although this standard is primarily intended for the use of new machines, it may be applied to the installation of used machines, too. This European Standard is addressed to manufacturers and installers of a machine, as a guide to define relevant parameters for the choice and installation of a vibration isolation system to be used with the machine. NOTE This European Standard may also be applied by users of machines already installed, who use or wish to use vibration isolation to solve a vibration problem caused by the machine. This European Standard shall not be considered as a manual for the design or installation of an isolation system. Examples of elements of vibration isolation are shown in Annex A only for information. 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 (including any amendments) applies." ISO 2041:1990, Vibration and shock ISO 7626-1:1986, Vibration and shock – Experimental determination of mechanical mobility – Part 1: Basic definitions and transducers
SIST EN 1299:2000+A1:2009



EN 1299:1997+A1:2008 (E) 5 3 Definitions For the general terms and their definitions used in this European Standard, see ISO 2041 and ISO 7626-1. 4 Purpose of source isolation The purpose of source isolation is to protect the surrounding structure from vibration by taking action on the installation of the source itself. A source isolation system may be necessary a) For the safety of the operators of the vibrating machines; b) For the safety of bystanders to vibrating machines; c) For the safety of structures or buildings containing vibrating equipment; d) For the safety of people in buildings that may be subjected to intense vibration excitation; e) When there are limiting values for vibration in legislation which are exceeded. 5 Applicability of vibration isolation A source isolation shall be used additionally to design measures for reducing vibration; it shall not be a substitute to such measures. It can be applied a) when vibrating machines are designed or installed; b) when buildings containing vibrating machines are designed or modified. Prior analysis of vibration phenomena and analysis of background vibration is necessary. Time history monitoring and frequency analysis for a sufficient period of time relative to the working cycle of the machine is important. Analysis of frequency response functions for the structures that transmit and receive vibration will facilitate the "best matching" of the structures and avoid coincidence between dominant frequencies of the source and the natural frequencies of these structures. A determination of the background vibration shall be carried out in order to know the inherent vibration level below which normally no isolation is necessary. NOTE In case of correction of an existing situation, the vibration (displacement, velocity or acceleration) should be measured simultaneously  on and close to the mounting points of the machine,  at operator's or bystander's position. Measurements shall be made in the environmental conditions relevant for the location of the machine. The measurements and analysis shall help in providing an understanding of the origin of the problem and possibly give an indication of possible solutions. Measurements should be made in accordance with an appropriate standard, and the standard should be identified. The mounting points of transducers and directions of measurement shall be reported. SIST EN 1299:2000+A1:2009



EN 1299:1997+A1:2008 (E) 6 In a complex situation where isolation systems are used, expert advice should be sought. The situation is especially complex when the machine and/or the supporting structure has natural frequencies (vibrational modes) in the frequency range of interest. 6 Information for the choice of an isolation system for a machine 6.1 General In order to select appropriate isolators and correctly install source isolation, an exchange of information is needed between the machine manufacturer, the supplier of the isolator and the machine user. The following paragraphs list the information required for an optimized machine isolation. If the machine manufacturer is also the supplier of the isolation system, some of the information in the following paragraphs may seem to be not relevant. Nevertheless, some of this information may be useful when replacement parts have to be provided and should be part of the instruction handbook. The choice of the isolation system shall take into consideration not only the static characteristics of the machine, but also its dynamic characteristics (mobility) and the dynamic characteristics of its surrounding structure (and further sources). It will often be necessary for the supplier of a vibration isolation system to ask for more detailed information from the user in order to provide the best possible solution. 6.2 Information to be supplied by the machine manufacturer The manufacturer shall supply to the user of the machine as much of the following information as is needed to ensure proper installation of the machine. If necessary, he should use the support of the supplier of the vibration isolation system. 6.2.1 Physical data of the machine 6.2.1.1 Machine drawing A drawing shall be furnished giving: a) The outline and installation of the machine, if appropriate, including an intermediate foundation prescribed by the machine manufacturer; b) The overall dimensions; c) The total weight and the location of the centre of gravity. Rotational inertia shall also be included. d) Specifications of bolt sizes and special connectors for securing the machine. Locations of attachments, tapped holes, tolerances and any special material considerations shall be indicated on the drawing. e) Identification and direction of the three mutually perpendicular axes with origin in the centre of gravity of the unit to be isolated under conditions of preferred orientation; f) The normal machine orientation with respect to the vertical. The direction of major shock or vibration shall be indicated. Feasible structural attachment points shall be given. These points frequently determine the isolation system in relation to orientation, centre of gravity, etc. 6.2.1.2 Vibration excitation The vibration excitation by a machine as characterised by its exciting forces and couples as a function of frequency or in form of time history shall be described in the detail necessary to ensure the safe installation and use of machinery. SIST EN 1299:2000+A1:2009



EN 1299:1997+A1:2008 (E) 7 Examples are:  Inherent rotational
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