车辆动力学基础符号中英文说明

车辆动力学基础符号中英文说明aTirecorneringstiffnessparameter轮胎侧偏刚度参数bTirecorneringstiffnessparameter轮胎侧偏刚度参数AFrontalareaofavehicle车辆前视面积AfLateralforcecompliancesteercoefficientonthefontaxel后轴侧向力柔顺转向系数ArLateralforcecompliancesteercoefficientontherearaxel前轴侧向力柔顺转向系数axAccelerationinthex-directionx方向加速度ayAccelerationinthelateraldirectiony方向加速度bLongitudinaldistancefromfrontaxletocenterofgravity前轴到重心的纵向距离cLongitudinaldistancefromcenterofgravitytorearaxle后轴到重心的纵向距离CαCorneringstiffnessofthetireonanaxle一个轴上轮胎的侧偏刚度Cα’Corneringstiffnessofontire一个轮胎的侧偏刚度CCαTirecorneringcoefficient轮胎侧偏系数CγTirecamberstiffness轮胎外倾刚度CDAerodynamicdragcoefficient空气阻力系数ChRoadsurfacerollingmomentcoefficient路面滚动阻力系数CLAerodynamicliftcoefficient空气动力升力系数CPMAerodynamicpitchingmomentcoefficient空气动力俯仰力矩系数CRMAerodynamicrollingmomentcoefficient空气动力侧倾力矩系数CYMAerodynamicyawingmomentcoefficient空气动力横摆力矩系数CsSuspensiondampingcoefficient悬架阻尼系数CSAerodynamicsideforcecoefficient空气动力横向力矩系数CPCenterofpresslocationofaerodynamicsideforce空气动力横向力的压力中心dLateraldistancebetweensteeringaxisandcenteroftirecontractattheground转向轴和轮胎与地面接触中心之间的侧向距离dhDistancefromaxletothehitchpoint车轴至牵引点的距离dnsDistancefromcenterofmasstotheneutralsteerpoint质心至中性转向点的距离DTirediameter轮胎直径DIDynamicindex动态指数DxLineardeceleration直线的减速度DAAerodynamicdragforce空气阻力eHeightofthepivotforan“equivalenttorquearm”Drumbrakegeometryfactor“等效力矩臂”支点高度鼓式制动器几何因素E[y2]Meansquarevibrationresponse均方振动响应fLongitudinallengthforan“equivalenttorquearm”“等效力矩臂”的纵向长度faWheelhopresonantfrequency(vertical)车轮跳动共振频率（垂直）fnUndampednaturalfrequencyofasuspensionsystem(Hz)悬挂系统无阻尼固有频率（Hz）frRollingresistancecoefficient滚动阻力系数FbBrakingforceVerticaldisturbanceforceonthesprungmass制动力悬挂质量上的垂直干扰力FiImbalanceforceinatire轮胎的不平衡力FxForceinthex-direction(tractiveforce)x方向的力（牵引力）FxmMaximunbrakeforceonanaxle车轴上的最大制动力FxtTotalforceinthex-directionx方向的合力FyForceinthey-direction(lateralforce)Lateralforceinanaxley方向的力（侧向力）轮胎上的侧向力Fy’Lateralforceinonetire一个轮胎上的侧向力FzForceinthez-direction(verticalforce)z方向的力（垂直）FziVerticalforceoninsidetireinaturn转向时内侧轮胎的垂直力FzoVerticalforceonoutsidetireinaturn转向时外侧轮胎的垂直力FwTire/wheelnonuniformityforceontheunspungmass非悬挂质量上的轮胎/车轮不均匀力gAccelerationofgravity(32.2ft/sec2,9.81m/sec2)重力加速度（32.2ft/s2,9.81m/s2）GBrakegain制动增益GoRoadroughnessmagnitudeparameter路面不平度幅值的参数GzPowerspectraldensityamplitudeofroadroughness路面不平度的功率谱密度幅值GzsPowerspectraldensityamplitudeofsprungmassacceleration悬挂质量加速度的功率谱密度幅值hCenterofgravityheight重心高度haHeightoftheaerodynamicdragforce空气阻力（风压中心）高度hhHitchheight牵引装置高度hIHeightofthesprungmasscenterofgravityabovetherollaxis侧倾轴以上悬挂质量重心的高度hrHeightofsuspensionrollcenter悬架侧倾中心高度htTiresectionheight轮胎断面的高度HPEngineorbrakehorsepower发动机的制动功率HPAAerodynamichorsepower空气动力功率HPRRollingresistancehorsepower滚动阻力功率HPRLRoadloadhorsepower道路负载功率HνResponsegainfunction相应增益指数IdMomentofinertiaofthetransmission驱动轴的转动惯量IeMomentofinertiaoftheengine发动机的转动惯量ItMomentofinertiaofthetransmission变速器的转动惯量IwMomentofinertiaofthewheels车轮的转动惯量IxxMomentofinertiaaboutthex-axis对x轴的转动惯量IyyMomentofinertiaaboutthey-axis对y轴的转动惯量IzzMomentofinertiaaboutthey-axis对z轴的转动惯量kRadiusofgyration回转半径KUndersteergradient不足转向梯度KatUndersteergradientduetoaligningtorque由回正力矩产生的不足转向梯度KlltUndersteergradientduetolateralloadtransferontheaxles由车轴上侧向载荷转移产生的不足转向梯度KlfcsUndersteergradientduetolateralforcecompliancesteer由侧向力柔顺转向产生的不足转向梯度KsVerticalstiffnessofasuspension悬架的垂直刚度KssSteeringsystemstiffness转向系统刚度KstrgUndersteergradientduetothesteeringsystem由转向系统所产生的不足转向梯度KtVerticalstiffnessofatire轮胎的垂直刚度KϕSuspensionrollstiffness悬架的侧倾刚度LWheelbase轴距LAAerodynamicliftforce空气动力升力mDrumbrakegeometryparameter鼓式制动器几何参数MMassofthevehicle车辆质量MATMomentaroundthesteeraxisduetotirealigningtorque轮胎回正力矩绕转向轴产生的力矩MLMomentaroundthesteeraxisduetotirelateralforces轮胎侧向力绕转向轴产生的力矩MrEquivalentmassoftherotatingcomponents转动原件的等效质量MSAMomentaroundthesteeraxisduetofront-wheel-driveforcesandtorques由前轮驱动的力和力矩对转向轴产生的力矩MTMomentaroundthesteeraxisduetotiretractiveforces由轮胎牵引力对转向轴产生的力矩MVMomentaroundthesteeraxisduetotireverticalforce有轮胎垂直力对转向轴产生的力矩MϕRollingmoment侧倾力矩nDrumbrakegeometryparameter鼓式制动器几何参数NNormalforce法向力NtNumericalratioofthetransmission变速器传动比NfNumericalratioofthefinaldrive主传动传动比NtfNumericalratioofthecombinedtransmissionandfinaldrive变速器和主传动的总传动比NSPNeutralsteerpoint中性转向点PPneumatictrail充气轮胎拖距PaBrakeapplicationpressure/effort制动作用压力/制动力PatmAtmosphericpressure大气压力PfFrontbrakeapplicationpressure前制动压力PrRearbrakeapplicationpressure后制动压力PsStaticpressure静态压力PtTotalpressure总压力PMAerodynamicpitchingmoment空气动力俯仰力矩PRollvelocityaboutthex-axisofthevehicle对车辆x轴的侧倾角速度qPitchvelocityaboutthey-axisofthevehicle对车辆y轴的俯仰角速度qDynamicpressure动态压力rYawvelocityaboutthez-axisofthevehicle对车辆z轴的横摆角速度rRollingradiusofthetire轮胎的滚动半径rkRatiooftiretosuspensionstiffness轮胎与悬架的刚度比RRadiusofturn转向半径RhHitchforce拖钩牵引力RgGradeforce斜坡力RxRollingresistance滚动阻力RRLRoadload道路负载RMAerodynamicrollingmoment空气动力侧倾力矩RRRiderateofatire/suspensionsystem轮胎/悬架系统乘适刚度RϕRollrateofthesprungmass悬挂质量的侧倾率sLateralseparationbetweensuspension悬架弹簧之间的侧向间距SAAerodynamicsideforce空气动力横向力SoSpectraldensityofwhite-noise白噪声谱密度SDStoppingdista