汽车各工况下轮毂轴承寿命计算公式EXCEL表

1、RH,轮胎半径,338,1=a/L,0.507594937,2=RH/L,4.278481013,K,载荷,5.39,a,图,40.1,L,图,79,f,摩擦系数,0.05,轴承1参数,d,轴承内径,40,e1,轴承1判断系数,0.37,Fa/Fre1,D,轴承外径,80,Cr(KN),基本而定动载荷,66,X,Y,X,YT,轴承公称宽度,19.75,Cor(KN),基本额定静载荷,73.9,1,0,0.4,1.6C,内圈公称宽度,16,Y1,轴承1计算系数,1.6,B,外圈公称宽度,18,1,寿命系数,3.33333,轴承2参数,d,轴承内径,34.925,e2,轴承2判断系数,0.38,F

2、a/Fre1,D,轴承外径,65.088,Cr(KN),基本而定动载荷,48.2,X,Y,X,YT,轴承公称宽度,18.034,Cor(KN),基本额定静载荷,58.8,1,0,0.4,1.59C,内圈公称宽度,13.97,Y2,轴承1计算系数,1.59,B,外圈公称宽度,18.288,2,寿命系数,3.33333,工况1，车辆直线行走时，轴承只受径向载荷,FrI1,轴承1径向载荷,3.888987342,FaI1,轴承1轴向载荷,1.215308544,FaI1/FrI1,0.3125,FrII1,轴承2径向载荷,3.807113924,FaII1,轴承2轴向载荷,1.215308544,F

3、aII1/FrII1,0.31922043,PI1,轴承1当量动载荷,3.888987342,PII1,轴承2当量动载荷,3.807113924,工况2，车辆转弯时，汽车会在重心在中心点受到一个离心力Kd。（如图）,前轮受力图,Kd/G,离心力/最大重力,0.25,h,重心高度,700,h/b,重心高度/轮距,0.461741425,b,轮距,1516,Ke,外侧轮Z向力,6.63439314,Kae,外轮摩擦力,1.658598285,Ki,内侧轮Z向力,4.14560686,Kai,内轮摩擦力,1.036401715,xKd,前轮Y向受力,2.695,外侧轮毂轴承受力,FrI2,轴承1径向

4、载荷,10.46386564,FdI2,轴承1派生轴向力力,3.269958011,FrII2,轴承2径向载荷,-3.829472496,FdII2,轴承2派生轴向力力,-1.204236634,Ka,轴向力,1.658598285,FaI2,轴承1轴向载荷,3.269958011,FaI1/FrI1,0.3125,FaII2,轴承2轴向载荷,1.611359726,FaII1/FrII1,-0.420778509,PI2,轴承1当量动载荷,10.46386564,PII2,轴承2当量动载荷,1.030272966,内侧轮毂轴承受力,FrI3,轴承1径向载荷,-2.329936007,FdI3,轴承1派生轴向力力,-0.728105002,FrII3,轴承2径向载荷,6.475542868,FdII3,轴承2派生轴向力力,2.036334235,Ka,轴向力,1.036401715,FaI3,轴承1轴向载荷,0.99993252,FaI3/FrI3,-0.429167375,FaII3,轴承2轴向载荷,2.036334235,FaII1/FrII1,0.314465409,PI3,轴承1当量动载荷,0.667917629,PII3,轴承2当量动载荷,6.475542868,总的当量载荷,PI,轴承1总的当量动载荷,4.7948473