SIST EN 14067-1:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave – Aerodinamika – 1. del: Oznake in enoteBahnanwendungen - Aerodynamik - Teil 1: Formelzeichen und EinheitenApplications ferroviaires - Aérodynamique - Partie 1: Symboles et unitésRailway applications - Aerodynamics - Part 1: Symbols and units45.060.01Železniška vozila na splošnoRailway rolling stock in general01.075Simboli za znakeCharacter symbolsICS:Ta slovenski standard je istoveten z:EN 14067-1:2003SIST EN 14067-1:2004en01-marec-2004SIST EN 14067-1:2004SLOVENSKI
STANDARD



SIST EN 14067-1:2004



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14067-1April 2003ICS 01.075; 45.060.01English versionRailway applications - Aerodynamics - Part 1: Symbols and unitsApplications ferroviaires - Aérodynamique - Partie 1:Symboles et unitésBahnanwendungen - Aerodynamik - Teil 1: Formelzeichenund EinheitenThis European Standard was approved by CEN on 2 January 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14067-1:2003 ESIST EN 14067-1:2004



EN 14067-1:2003 (E)2ContentsForeword.31Scope.32Terms, definitions, symbols and abbreviations.4SIST EN 14067-1:2004



EN 14067-1:2003 (E)3ForewordThis document EN 14067-1:2003 has been prepared by Technical Committee CEN /TC 256, "Railwayapplications", 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 orby endorsement, at the latest by October 2003, and conflicting national standards shall be withdrawn at the latestby October 2003.This European Standard is part of the series ”Railway applications — Aerodynamics” which consists of thefollowing parts:¾ Part 1: Symbols and units¾ Part 2: Aerodynamics on open track¾ Part 3: Aerodynamics in tunnels¾ Part 4: Requirements and test procedures for aerodynamics on open track1)¾ Part 5: Requirements and test procedures for aerodynamics in tunnels1)According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard : Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.1 ScopeThis European Standard applies to aerodynamics for railway applications.It defines symbols and units used in formulae and calculations in the field of aerodynamics. The definitions given inthis European Standard explain the symbols and classify the units.Further to usual symbols, this document contains symbols which are used for calculations. It should be noted,however, that these symbols may not have the same significance in a different field of application.Additional symbols should be defined according to the application.
1)in preparationSIST EN 14067-1:2004



EN 14067-1:2003 (E)42 Terms, definitions, symbols and abbreviationsAll parameters are expressed as SI basic units and units derived from SI basic units.Table/ Tableau/ Tabelle 1 SymbolSymbolesSymbolUnitUnitéEinheitSignificanceSignificationBedeutungExplanationExplicationErläuterungRemarkRemarqueBemerkungAm2surface areasection transversaleOberflächeam/s²accelerationaccélérationBeschleunigungB-train/tunnel blockage ratiorapport de blocageVersperrungsmaßtutrSSB=bmwidth of vehiclelargeur du véhiculeFahrzeugbreitecm/sspeed of soundvitesse du sonSchallgeschwindigkeitC1Nrolling resistance in the resistance to motionformularésistance au roulement (dans la formule derésistance à l’avancement)Rollwiderstand in der LaufwiderstandsformelC2vtrNmomentum resistance in the resistance tomotion formularésistance due aux systèmes de ventilation(dans la formule de résistance à l’avancement)Impulswiderstand in der LaufwiderstandsformelC2 = Qr,C3vtr²Naerodynamic drag in the resistance to motionformulatraînée aérodynamique (dans la formule derésistance à l’avancement)Aerodynamischer Widerstand in derLaufwiderstandsformelCB-gust coefficientcoefficient de rafaleBöenkoeffizientWBBvvC=CF-coefficient of aerodynamic forcecoefficient de la force aérodynamiqueKoeffizient der Luftkraft2rF2tvSFCr=Cf-coefficient of skin-friction dragcoefficient de frottement aérodynamiqueKoeffizient des LuftreibungswiderstandesAqRCff=Cp-coefficient of pressure amplitudecoefficient de l’amplitude de pressionKoeffizient der DruckamplitudeqppCop-=DCp-pressure coefficientcoefficient de pressionDruckkoeffizient()2trminmaxp2vppCr-=DSIST EN 14067-1:2004



EN 14067-1:2003 (E)5Table/ Tableau/ Tabelle 1 (continued/ suite/ fortgesetzt)SymbolSymbolesSymbolUnitUnitéEinheitSignificanceSignificationBedeutungExplanationExplicationErläuterungRemarkRemarqueBemerkungCFxCFyCFz-coefficients of aerodynamic forces Fx, Fy, Fzcoefficients de force aérodynamique
Fx, Fy, FzKoeffizienten der Luftkräfte Fx, Fy, FzSqFCSqFCSqFCzzFyFxF;;yx===CMxCMyCMz-coefficients of the moments Mx, My, Mzcoefficients de moment Mx, My, MzKoeffizienten der Momente Mx, My, MzhzMhyMhxMzyx;DSqMCDSqMCDSqMC===Cx-coefficient of the aerodynamic drag for thewhole traincoefficient de traînée aérodynamique pour letrain entierKoeffizient des aerodynamischen Widerstandsfür den gesamten ZugCx1-coefficient of the aerodynamic drag of theleading vehiclecoefficient de traînée aérodynamique duvéhicule de têteKoeffizient des aerodynamischen Widerstandsdes führenden FahrzeugsCx2-coefficient of the aerodynamic drag of the trainwithout leading vehicle and tailcoefficient de traînée aérodynamique de lapartie du train hors véhicules de tête et dequeu
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