车辆动力学基础符号中英文说明.docx

车辆动力学基础符号中英文说明aTire cornering stiffness parameter轮胎侧偏刚度参数bTire cornering stiffness parameter轮胎侧偏刚度参数AFrontal area of a vehicle车辆前视面积AfLateral force compliance steer coefficient on the font axel后轴侧向力柔顺转向系数ArLateral force compliance steer coefficient on the rear axel前轴侧向力柔顺转向系数axAcceleration in the x-directionx方向加速度ayAcceleration in the lateral directiony方向加速度bLongitudinal distance from front axle to center of gravity前轴到重心的纵向距离cLongitudinal distance from center of gravity to rear axle后轴到重心的纵向距离CCornering stiffness of the tire on an axle一个轴上轮胎的侧偏刚度CCornering stiffness of on tire一个轮胎的侧偏刚度CCTire cornering coefficient轮胎侧偏系数CTire camber stiffness轮胎外倾刚度CDAerodynamic drag coefficient空气阻力系数ChRoad surface rolling moment coefficient路面滚动阻力系数CLAerodynamic lift coefficient空气动力升力系数CPMAerodynamic pitching moment coefficient空气动力俯仰力矩系数CRMAerodynamic rolling moment coefficient空气动力侧倾力矩系数CYMAerodynamic yawing moment coefficient空气动力横摆力矩系数CsSuspension damping coefficient悬架阻尼系数CSAerodynamic side force coefficient空气动力横向力矩系数CPCenter of press location of aerodynamic side force空气动力横向力的压力中心dLateral distance between steering axis and center of tire contract at the ground转向轴和轮胎与地面接触中心之间的侧向距离dhDistance from axle to the hitch point车轴至牵引点的距离dnsDistance from center of mass to the neutral steer point质心至中性转向点的距离DTire diameter轮胎直径DIDynamic index动态指数DxLinear deceleration直线的减速度DAAerodynamic drag force空气阻力eHeight of the pivot for an “equivalent torque arm”Drum brake geometry factor“等效力矩臂”支点高度鼓式制动器几何因素Ey2Mean square vibration response均方振动响应fLongitudinal length for an “equivalent torque arm”“等效力矩臂”的纵向长度faWheel hop resonant frequency(vertical)车轮跳动共振频率（垂直）fnUndamped natural frequency of a suspension system(Hz)悬挂系统无阻尼固有频率（Hz）frRolling resistance coefficient滚动阻力系数FbBraking forceVertical disturbance force on the sprung mass制动力悬挂质量上的垂直干扰力FiImbalance force in a tire轮胎的不平衡力FxForce in the x-direction(tractive force)x方向的力（牵引力）FxmMaximun brake force on an axle车轴上的最大制动力FxtTotal force in the x-directionx方向的合力FyForce in the y-direction(lateral force)Lateral force in an axley 方向的力（侧向力）轮胎上的侧向力FyLateral force in one tire一个轮胎上的侧向力FzForce in the z-direction(vertical force)z方向的力（垂直）FziVertical force on inside tire in a turn转向时内侧轮胎的垂直力FzoVertical force on outside tire in a turn转向时外侧轮胎的垂直力FwTire/wheel nonuniformity force on the unspung mass非悬挂质量上的轮胎/车轮不均匀力gAcceleration of gravity(32.2ft/sec2,9.81m/sec2)重力加速度（32.2ft/s2,9.81m/s2）GBrake gain制动增益GoRoad roughness magnitude parameter路面不平度幅值的参数GzPower spectral density amplitude of road roughness路面不平度的功率谱密度幅值GzsPower spectral density amplitude of sprung mass acceleration悬挂质量加速度的功率谱密度幅值hCenter of gravity height重心高度haHeight of the aerodynamic drag force空气阻力（风压中心）高度hhHitch height牵引装置高度hIHeight of the sprung mass center of gravity above the roll axis侧倾轴以上悬挂质量重心的高度hrHeight of suspension roll center悬架侧倾中心高度htTire section height轮胎断面的高度HPEngine or brake horsepower发动机的制动功率HPAAerodynamic horsepower空气动力功率HPRRolling resistance horsepower滚动阻力功率HPRLRoad load horsepower道路负载功率HResponse gain function相应增益指数IdMoment of inertia of the transmission驱动轴的转动惯量IeMoment of inertia of the engine发动机的转动惯量ItMoment of inertia of the transmission变速器的转动惯量IwMoment of inertia of the wheels车轮的转动惯量IxxMoment of inertia about the x-axis对x轴的转动惯量IyyMoment of inertia about the y-axis对y轴的转动惯量IzzMoment of inertia about the y-axis对z轴的转动惯量kRadius of gyration回转半径KUndersteer gradient不足转向梯度KatUndersteer gradient due to aligning torque由回正力矩产生的不足转向梯度KlltUndersteer gradient due to lateral load transfer on the axles由车轴上侧向载荷转移产生的不足转向梯度KlfcsUndersteer gradient due to lateral force compliance steer由侧向力柔顺转向产生的不足转向梯度KsVertical stiffness of a suspension悬架的垂直刚度KssSteering system stiffness转向系统刚度KstrgUndersteer gradient due to the steering system由转向系统所产生的不足转向梯度KtVertical stiffness of a tire轮胎的垂直刚度KSuspension roll stiffness悬架的侧倾刚度LWheel base轴距LAAerodynamic lift force空气动力升力mDrum brake geometry parameter鼓式制动器几何参数MMass of the vehicle车辆质量MATMoment around the steer axis due to tire aligning torque轮胎回正力矩绕转向轴产生的力矩MLMoment around the steer axis due to tire lateral forces轮胎侧向力绕转向轴产生的力矩MrEquivalent mass of the rotating components转动原件的等效质量MSAMoment around the steer axis due to front-wheel-drive forces and torques由前轮驱动的力和力矩对转向轴产生的力矩MTMoment around the steer axis due to tire tractive forces由轮胎牵引力对转向轴产生的力矩MVMoment around the steer axis due to tire vertical force有轮胎垂直力对转向轴产生的力矩MRolling moment侧倾力矩nDrum brake geometry parameter鼓式制动器几何参数NNormal force法向力NtNumerical ratio of the transmission变速器传动比NfNumerical ratio of the final drive主传动传动比NtfNumerical ratio of the combined transmission and final drive变速器和主传动的总传动比NSPNeutral steer point中性转向点PPneumatic trail充气轮胎拖距PaBrake application pressure/effort制动作用压力/制动力PatmAtmospheric pressure大气压力PfFront brake application pressure前制动压力PrRear brake application pressure后制动压力PsStatic pressure静态压力PtTotal pressure总压力PMAerodynamic pitching moment空气动力俯仰力矩PRoll velocity about the x-axis of the vehicle对车辆x轴的侧倾角速度qPitch velocity about the y-axis of the vehicle对车辆y轴的俯仰角速度qDynamic pressure动态压力rYaw velocity about the z-axis of the vehicle对车辆z轴的横摆角速度rRolling radius of the tire轮胎的滚动半径rkRatio of tire to suspension stiffness轮胎与悬架的刚度比RRadius of turn转向半径RhHitch force拖钩牵引力RgGrade force斜坡力RxRolling resistance滚动阻力RRLRoad load道路负载RMAerodynamic rolling moment空气动力侧倾力矩RRRide rate of a tire/suspension system轮胎/悬架系统乘适刚度RRoll rate of the sprung mass悬挂质量的侧倾率sLateral separation between suspension悬架弹簧之间的侧向间距SAAerodynamic side force空气动力横向力SoSpectral density of white-noise白噪声谱密度SDStopping distance制动距离tTread胎面tsLength of time of a brake application制动时间TaTorque in the axle轮轴扭矩TbBrake torque制动力矩TcTorque at the clutch离合器扭矩TdTorque in the driveshaft驱动轴扭矩TeTorque of the engine发动机扭矩TsfRoll torque in a front suspension前悬架侧倾力矩TsrRoll torque in a rear suspension后悬架侧倾力矩TambAmbient temperature环境温度TxTorque about the x-axis绕x轴的扭矩VForward velocity向前速度VwAmbient wind velocity环境风速VfFinal velocity resulting from a brake application制动的最终速度VoInitial velocity in a brake application制动的初始速度wTire section width轮胎断面宽度WWeight of the vehicle车重WaAxle weight轴重WdDynamic load transfer动态载荷转移WfDynamic weight on the front axle前轴动态重量WrDynamic weight on the rear axle后轴动态重量WrrDynamic weight on the right rear axle右后轮动态重量WfsStatic weight on the front axle前轮轴静态重量WrsStatic weight on the rear axle后轮轴静态重量WyLateral weight transfer on an axle轮轴侧向重量转移xForward direction on the longitudinal axis of the vehicle车辆纵轴的向前方向yLateral direction out the right side of the vehicle向车辆右侧的侧向方向YMAerodynamic yawing moment空气动力横摆力矩zVertical direction with respect to the plane of the vehicle相对于车辆平面的垂直方向XForward direction of travel运动的向前方向YLateral direction of travel运动的侧向方向ZVertical direction of travelVertical displacement of the sprung mass运动的垂直方向悬挂质量的垂直位置ZrRoad profile elevation路面断面高度ZuVertical displacement of the unsprung mass非悬挂质量的垂直位移Tire slip angleCoefficient in the pitch plane equations轮胎侧偏角cwAerodynamic wind angel空气动力风角dRotational acceleration of the driveshaft驱动轴角加速度eRotational acceleration of the engine发动机角加速度wRotational acceleration of the wheels车轮角加速度xRotational acceleration about the x-axis绕x轴的角加速度Sideslip angleRotation angle of a U-jointCoefficient in the pitch plane equations侧滑角万向节转角俯仰平面方程式系数Camber angleCoefficient in the pitch plane equations外倾角俯仰平面方程式系数Wheel camber with respect to the ground相对地面的车轮外倾角bWheel camber with respect to the vehicle body相对车体的车轮外倾角Steer angle转向角cCompliance steer柔顺转向角iSteer angle of the inside wheel in a turn转向时内侧车轮的转向角oSteer angle of the outside wheel in a turn转向时外侧车轮的转向角Off-tracking distance in a turn转向时的偏离轨距Roll steer coefficientInclination of the roll axis侧倾转向系数侧倾轴的倾斜度Moment arm related to tire force yaw dampingHalf-shaft angle on a front-wheel drive和轮胎所产生的横摆阻尼相关的力矩臂前轮驱动的半轴角sDamping ratio of the suspension悬架的阻尼比bBraking efficiency制动效率tEfficiency of the transmission变速器效率fEfficiency of the final drive最终传动效率tfCombined efficiency of the transmission and final drive变速器和最终传动综合的效率Pitch angleGrade angleAngle of a U-joint俯仰角坡度角万向节的角度pBody pitch due to acceleration squat or brake drive由于加速后蹲或制动点头所产生的车身俯仰角Lateral inclination angle of the steer axis(kingpin inclination angle)转向轴的侧向倾斜角（主销倾斜角）Coefficient of friction摩擦系数pPeak coefficient of friction峰值摩擦系数sS