评价汽车用螺栓的重要参数——使用系数

2003SAE-C2003M104305[]12.9GB309814USECOEFFICIENTKu1A-D1306SAE-C2003M10420032-3-KuKuKuRATRTTRTRAuTTK=1KuKu10KuKuKuKuKuKuKuKu1Ku4OoptimalOKuGgoodNnormalNKu0.60.6PpoorKuPKu0.6KuKuKuKuKu2003SAE-C2003M1043071KuKu0.9O0.8~0.9G0.6~0.8N/0.6PKuKuKuRATHRC-RTSSRTRTTRTTRATM101.25KuRAT83.11kN34.7HRC-34.3HRC1099MPa35.5HRC1138MPa34.7HRC1112MPaM101.25S=84.3mm2;111284.3=93.74kNKu=RAT/RTT=83.11/93.74=0.886620Ku20KuKuKuKu3ExcelKuKuKuKu210.912.9Ku20212.9OG10.9ORATKuRTTRTTKuRAT2Ku12.912.910.910.9308SAE-C2003M1042003RTTRATKuRTTRAT12.93KuRTTRATCJGRRTTKuRATRTTKuRATRTT1RTT1Ku-0.5946651Ku0.62399981RAT-0.057250.81544471RAT0.86359970.92957571RTTKuRATKuRTTRTTGRKuRATKuM81.2512.9Ku44G.RC.J12345678910Ku2003SAE-C2003M10430951-0.4892470831-0.5772518520.053231513066G.RC.J77SPCHG.R0.9506480.882751C.J0.9597090.9332667G.RC.JSPCHSPCH8SPCH8SPCHG.R33.03kN28.87kNC.J32.25kN28.6kN310SAE-C2003M1042003KuKuKu(3)KuKuRTTRTTKuRAT(4)(5)(6)(7)