MAN卡车底盘改装计算

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1、CalculationsGBWereservetherighttomakechangesinthecourseoftechnicaldevelopment.©2000MANNutzfahrzeugeAktiengesellschaftReprinting,reproductionortranslation,evenofexcerpts,isnotpermittedwithoutthewrittenpermissionofMAN.Allrights,inparticularundercopyright,arestrictlyreser

2、vedbyMAN.Trucknology®andMANTED®areregisteredtrademarksofMANNutzfahrzeugeAG.Wheredesignationsaretrademarkstheyare,evenwithoutthe®or™sign,acknowledgedastheproprietor'sprotectedmarks.CalculationsPage1Speed12Efficiency23Tractiveforce34Gradeability44.1Distancetravelledonuph

3、illordownhillgradients44.2Angleofuphillordownhillgradient44.3Calculatingthegradeability55Torque86Poweroutput107Rotationalspeedsforpowertake-offsatthetransfercase128Drivingresistances139Turningcircle1610Axleloadcalculation1810.1Performinganaxleloadcalculation1810.2Calcu

4、lationofweightwithtrailingaxlelifted2211Supportlengthforbodieswithoutsubframes2312Couplingdevices2512.1Trailercoupling2512.2Rigiddrawbartrailers/centralaxletrailers2612.3Fifth-wheelcoupling28Index29CalculationsCalculationsCalculations1SpeedThefollowinggenerallyappliesf

5、orthecalculationofthedrivingspeedonthebasisofenginespeed,tyresizeandoverallratio:Formula1:Speed0.06·nMot·Uv=iG·iV·iAWhere:v=Drivingspeed,inkm/hnMot=Enginespeed,in1/minU=Tyrerollingcircumference,inmiG=TransmissionratioiV=TransfercaseratioiA=Finaldriveratioofthedrivenaxl

6、e(s)Tocalculatethetheoreticalmaximumspeed(orthedesigntopspeed),theenginespeedisincreasedby4%.Theformulathereforeisasfollows:Formula2:Theoreticalmaximumspeed0.0624·nMot·Uv=iG·iV·iAWarning:Thiscalculationisusedexclusivelytocalculatethetheoreticalfinalspeedonthebasisofeng

7、inespeedandtransmissionratios.Theformuladoesnottakeintoconsiderationthefactthattheactualmaximumspeedwillbebelowthisspeedwhendrivingresistancesoffsetthedrivingforces.Anestimateoftheactualachievablespeedsusingadrivingperformancecalculationinwhichair,rollingandclimbingres

8、istanceontheonesideandtractiveforceontheotheroffseteachother,canbefoundinSection8,"Drivingresistances".Onvehicleswith