1、BRITISH STANDARD BS EN 14067-1:2003 Railway applications Aerodynamics Part 1: Symbols and units The European Standard EN 14067-1:2003 has the status of a British Standard ICS 01.075; 45.060.01 BS EN 14067-1:2003 This British Standard was published under the authority of the Standards Policy and Stra
2、tegy Committee on 28 April 2003 BSI 28 April 2003 ISBN 0 580 41682 8 National foreword This British Standard is the official English language version of EN 14067-1:2003. The UK participation in its preparation was entrusted by Technical Committee RAE/1, Railway applications, to Subcommittee RAE/1/-/
3、4, Aerodynamics, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Cata
4、logue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its co
5、rrect application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests i
6、nformed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright date displayed in this document in
7、dicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN140671 April2003 ICS01.075;45.060.01 Englishversion RailwayapplicationsAerodynamicsPart1:Symbolsandunits ApplicationsferroviairesArodynamiquePartie1:
8、Symbolesetunits BahnanwendungenAerodynamikTeil1:Formelzeichen undEinheiten ThisEuropeanStandardwasapprovedbyCENon2January2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Upt
9、odatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownla
10、nguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,Switzerlandand
11、Un ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN140671:2003EEN140671:2003(E) 2 Contents F
12、oreword3 1 Scope 3 2 Terms,definitions,symbolsandabbreviations . 4EN140671:2003(E) 3 Foreword ThisdocumentEN140671:2003hasbeenpreparedbyTechnicalCommitteeCEN /TC 256,“Railway applications“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicat
13、ionofanidenticaltextor byendorsement,atthelatestbyOctober2003,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2003. ThisEuropeanStandardispartoftheseries”RailwayapplicationsAerodynamics”whichconsistsofthe followingparts: Part1:Symbolsandunits Part2:Aerodynamicsonopentrack Part3:A
14、erodynamicsintunnels Part4:Requirementsandtestproceduresforaerodynamicsonopentrack 1) Part5:Requirementsandtestproceduresforaerodynamicsintunnels 1) AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,B
15、elgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom. 1Scope ThisEuropeanStandardappliestoaerodynamicsforrailwayapplications. Itdefinessymbolsandunitsusedinformulae
16、andcalculationsinthefieldofaerodynamics.Thedefinitionsgivenin thisEuropeanStandardexplainthesymbolsandclassifytheunits. Furthertousualsymbols,thisdocumentcontainssymbolswhichareusedforcalculations.Itshouldbenoted, however,thatthesesymbolsmaynothavethesamesignificanceinadifferentfieldofapplication. A
17、dditionalsymbolsshouldbedefinedaccordingtotheapplication. 1) inpreparationEN140671:2003(E) 4 2 Terms,definitions,symbolsandabbreviations AllparametersareexpressedasSIbasicunitsandunitsderivedfromSIbasicunits. Table/Tableau/Tabelle1 Symbol Symboles Symbol Unit Unit Einheit Significance Signification
18、Bedeutung Explanation Explication Erluterung Remark Remarque Bemerkung A m 2 surfacearea sectiontransversale Oberflche a m/s acceleration acclration Beschleunigung B train/tunnelblockageratio rapportdeblocage Versperrungsma tu tr S S B = b m widthofvehicle largeurduvhicule Fahrzeugbreite c m/s speed
19、ofsound vitesseduson Schallgeschwindigkeit C 1 N rollingresistanceintheresistancetomotion formula rsistanceauroulement(danslaformulede rsistancelavancement) RollwiderstandinderLaufwiderstandsformel C 2 v tr N momentumresistanceintheresistanceto motionformula rsistancedueauxsystmesdeventilation (dans
20、laformuledersistancelavancement) ImpulswiderstandinderLaufwiderstandsformel C2 = Qr , C 3 v tr N aerodynamicdragintheresistancetomotion formula tranearodynamique(danslaformulede rsistancelavancement) AerodynamischerWiderstandinder Laufwiderstandsformel C B gustcoefficient coefficientderafale Benkoef
21、fizient W B B v v C = C F coefficientofaerodynamicforce coefficientdelaforcearodynamique KoeffizientderLuftkraft 2 r F 2 t v S F C r = C f coefficientofskinfrictiondrag coefficientdefrottementarodynamique KoeffizientdesLuftreibungswiderstandes A q R C f f = C p coefficientofpressureamplitude coeffic
22、ientdelamplitudedepression KoeffizientderDruckamplitude q p p C o p - = D C p pressurecoefficient coefficientdepression Druckkoeffizient () 2 tr min max p 2 v p p C r - = D EN140671:2003(E) 5 Table/Tableau/Tabelle1 (continued/suite/fortgesetzt) Symbol Symboles Symbol Unit Unit Einheit Significance S
23、ignification Bedeutung Explanation Explication Erluterung Remark Remarque Bemerkung C Fx C Fy C Fz coefficientsofaerodynamicforces Fx, Fy, Fz coefficientsdeforcearodynamique Fx, Fy, Fz KoeffizientenderLuftkrfte Fx, Fy, Fz S q F C S q F C S q F C z z F y F x F ; ; y x = = = C Mx C My C Mz coefficient
24、softhemoments Mx, My, Mz coefficientsdemoment Mx, My, Mz KoeffizientenderMomente Mx, My, Mz h z M h y M h x M z y x ; D S q M C D S q M C D S q M C = = = C x coefficientoftheaerodynamicdragforthe wholetrain coefficientdetranearodynamiquepourle trainentier KoeffizientdesaerodynamischenWiderstands frd
25、engesamtenZug C x1 coefficientoftheaerodynamicdragofthe leadingvehicle coefficientdetranearodynamiquedu vhiculedette KoeffizientdesaerodynamischenWiderstands desfhrendenFahrzeugs C x2 coefficientoftheaerodynamicdragofthetrain withoutleadingvehicleandtail coefficientdetranearodynamiquedela partiedutr
26、ainhorsvhiculesdetteetde queue KoeffizientdesaerodynamischenWiderstands desZugesohnefhrendesFahrzeugundohne Heck C x3 coefficientoftheaerodynamicdragofthetail vehicle coefficientdetranearodynamiquedu vhiculedequeue KoeffizientdesaerodynamischenWiderstands desEndfahrzeugs c p specificheatatconstantpr
27、essure chaleurspcifiquepressionconstante SpezifischeWrmebeikonstantemDruck c v specificheatatconstantvolume chaleurspcifiquevolumeconstant SpezifischeWrmebeikonstantemVolumen D m diameter diamtre Durchmesser r D 2 = D h m hydraulicdiameter(Europeandefinition) diamtrehydraulique(dfinitioneuropenne) h
28、ydraulischerDurchmesser(europische Definition) Pe S D 4 h = d m characteristicdimension longueurcaractristique charakteristischeLnge F N aerodynamicforce forcearodynamique LuftkraftEN140671:2003(E) 6 Table/Tableau/Tabelle1 (continued/suite/fortgesetzt) Symbol Symboles Symbol Unit Unit Einheit Signif
29、icance Signification Bedeutung Explanation Explication Erluterung Remark Remarque Bemerkung F x F y F z N aerodynamicforcesinthedirectionsof coordinates composantesdelaforcearodynamique danslereprecartsien LuftkrfteinRichtungderKoordinatenachsen Figure/ Figure/Bild1 f Hz frequency frquence Frequenz
30、g m/s 2 accelerationduetogravity acclrationduelagravit Erdbeschleunigung h m height hauteur Hhe i 0 00 / gradientoftrack gradientdelavoie(pente,rampe) Steigung,NeigungderStrecke k pressurelosscoefficient coefficientdepertedecharge Druckverlustkoeffizient K s m equivalentsandroughness rugositquivalen
31、tedusable quivalenteSandrauhigkeit L loco m lengthofthelocomotive longueurdelalocomotive LngederLokomotive L p dB soundpressurelevel niveaudepressionacoustique Schalldruckpegel L n m lengthofthenoncylindricalpartoftheleading car,(noselength) longueurdelapartiesectionnonconstante duvhiculedette,(long
32、ueurdelatte) LngedesnichtzylindrischenTeilsdes fhrendenFahrzeugs,(Kopflnge) L tr m lengthoftrain longueurdutrain Zuglnge L tu m lengthoftunnel longueurdutunnel Tunnellnge Ma Machnumber nombredeMach Machzahl M x Nm aerodynamicrollingmoment momentderoulisarodynamique AerodynamischesRollmoment Figure/
33、Figure/Bild1 M y Nm aerodynamicpitchingmoment momentdetangagearodynamique AerodynamischesNickmoment Figure/ Figure/Bild1EN140671:2003(E) 7 Table/Tableau/Tabelle1 (continued/suite/fortgesetzt) Symbol Symboles Symbol Unit Unit Einheit Significance Signification Bedeutung Explanation Explication Erlute
34、rung Remark Remarque Bemerkung M z Nm aerodynamicyawingmoment momentdelacet aerodynamischesGiermoment Figure/ Figure/Bild1 m kg mass masse Masse N numberoftrailercars nombredevhicules AnzahlderFahrzeuge P W power puissance Leistung Pe m perimeter primtre Umfang p Pa pressure pression Druck p o Pa re
35、ferencestaticpressure pressionstatiquederfrence statischerBezugsdruck p max Pa maximumpressure pressionmaximale Hchstdruck p min Pa minimumpressure pressionminimale Mindestdruck p t Pa totalpressure pressiontotale Gesamtdruck Q m 3 /s volumeflowrate dbitvolumtrique Volumenstrom Q m kg/s massflowrate
36、 dbitmassique Durchflumenge q Pa dynamicpressure pressiondynamique Staudruck(dynamischerDruck) 2 2 U q r = R N runningresistance rsistancelavancement Laufwiderstand R a N aerodynamicdrag tranearodynamique aerodynamischerWiderstand (Luftwiderstand) x a F R - = Re Reynoldsnumber nombredeReynolds Reyno
37、ldszahl u d U R = eEN140671:2003(E) 8 Table/Tableau/Tabelle1 (continued/suite/fortgesetzt) Symbol Symboles Symbol Unit Unit Einheit Significance Signification Bedeutung Explanation Explication Erluterung Remark Remarque Bemerkung R f N frictionaldrag rsistancearodynamiquedueaufrottement (Luft)Reibun
38、gswiderstand A q C R f f = R g N graderesistance rsistancelavancementdueauprofil Steigungswiderstand i g m R = g r m radius rayon Radius 2 D r = S m 2 crosssectionalarea,characteristicarea sectiontransversale,surfacecaractristique Querschnittsflche,charakteristischeFlche S tr m 2 crosssectionalareao
39、fthetrain sectiontransversaledutrain QuerschnittsflchedesZuges S tu m 2 crosssectionalareaoftunnel sectiontransversaledutunnel QuerschnittsflchedesTunnels s m trackgauge cartementdelavoie Spurweite T K absolutetemperature tempratureabsolue AbsoluteTemperatur T f tunnelfactor coefficientdetunnel Tunn
40、elfaktor air open the in drag c aerodynami tunnel the in drag c aerodynami f = T libre air l que arodynami traine tunnel en que arodynami traine f = T Strecke freier auf stand Wider scher aerodynami imTunnel stand Wider scher aerodynami f = T t s time temps Zeit D t s timeinterval dure Zeitintervall
41、 U m/s flowspeed vitessedelcoulement Strmungsgeschwindigkeit v a m/s airspeedrelativetothetrain vitesserelativedelairvueparletrain relativeAnstrmgeschwindigkeit Figure/ Figure/Bild1 v B m/s gustspeed vitessedelarafale BengeschwindigkeitEN140671:2003(E) 9 Table/Tableau/Tabelle1 (continued/suite/fortg
42、esetzt) Symbol Symboles Symbol Unit Unit Einheit Significance Signification Bedeutung Explanation Explication Erluterung Remark Remarque Bemerkung v tr m/s trainspeed vitessedutrain Zuggeschwindigkeit Figure/ Figure/Bild1 km/hmayalsobeusedthisshallbe indicated km/hpeuventaussitreutilissdoit treindiq
43、u km/hdrfenauchverwendetwerden istanzugeben v w m/s windspeed vitesseduvent Windgeschwindigkeit Figure/ Figure/Bild1 x y z cartesiancoordinates coordonnescartsiennes KartesischeKoordinaten Figure/ Figure/Bild1 x: Originishalfwaybetweenthe axlesoftheinnerwheels lorigineestaumilieudesessieux enpartant
44、delafaceinternedes roues UrsprungistdieMittezwischen deninnerenRadachsen y: Originistrackcentreline lorigineestlaxedelavoie UrsprungistGleismitte z: Originistopofrail lorigineestlafacesuprieure durail UrsprungistSchienenoberkante Y m distancefromtrackcentreline distanceparrapportlaxedelavoie AbstandvonderGleismitte Y s m distancefromcoachside distanceparrapportlaparoiduvhicule AbstandvonderFahrzeugseitenwand q o C temperature temprature Temperatur b o yawangle angledelacet Schiebewinkel Figure/ Figure/Bild1 b w o windanglerelativetotrack angleform
