汽车各工况下轮毂轴承寿命计算公式excel表

载荷6.475542868FdII3轴承2派生轴向力力2.036334235Ka轴向力1.036401715FaI3轴承1轴向载荷0.99993252FaI3/FrI3-0.429167375FaII3轴承2轴向载荷2.036334235FaII1/FrII10.314465409PI3轴承1当量动载荷0.667917629PII3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4.794847351PII轴承2总的当量动载荷3.985235778寿命Ls1轴承1寿命13273636.87Ls2轴承2寿命8624548.025ε2=RH/L4.278481013Fa/Fr<=e1Fa/Fr>e1XYXY100.41.6Fa/Fr<=e1Fa/Fr>e1XYXY100.41.59FaI1/FrI10.3125FaII1/FrII10.31922043RH轮胎半径338ε1=a/L0.507594937ε2=RH/L4.278481013K载荷5.39a图40.1L图79f摩擦系数0.05轴承1参数d轴承内径40e1轴承1判断系数0.37Fa/Fr<=e1Fa/Fr>e1D轴承外径80Cr(KN)基本而定动载荷66XYXT轴承公称宽度19.75Cor(KN)基本额定静载荷73.9100.4C内圈公称宽度16Y1轴承1计算系数1.6B外圈公称宽度18ξ1寿命系数3.33333轴承2参数d轴承内径34.925e2轴承2判断系数0.38Fa/Fr<=e1Fa/Fr>e1D轴承外径65.088Cr(KN)基本而定动载荷48.2XYXT轴承公称宽度18.034Cor(KN)基本额定静载荷58.8100.4C内圈公称宽度13.97Y2轴承1计算系数1.59B外圈公称宽度18.288ξ2寿命系数3.33333工况1,车辆直线行走时,轴承只受径向载荷Y1.6Y1.59