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当前位置:首页 > 商业/管理/HR > 质量控制/管理 > 重复性与再现性(极差法)
1234567891010.651.000.850.850.551.000.950.851.000.6020.601.000.800.950.451.000.950.801.000.70A3均值0.6251.0000.8250.9000.5001.0000.9500.8251.0000.650XbarA=0.828极差0.0500.050.10.1000.0500.1RbarA=0.04510.551.050.800.800.401.000.950.751.000.5520.550.950.750.750.401.050.900.700.950.50B3均值0.551.000.780.780.401.030.930.730.980.53XbarB=0.77极差00.10.050.0500.050.050.050.050.05RbarB=0.04510.501.050.800.800.451.000.950.801.050.8520.551.000.800.800.501.050.950.801.050.80C3均值0.531.030.800.800.481.030.950.801.050.83XbarC=0.83极差0.050.05000.050.050000.05RbarC=0.025Xbarbar=0.808Rp=0.558(RbarA=0.045+RbarB=0.045+RbarC=0.025)/(评价人数量=3)=RbarbarRbarbar=0.038(MaxXbar=0.8275)-(MinXbar=0.7675)=XbarDIFFXbarDIFF=0.06(Rbar=0.038)x(D4=3.27)=UCLRUCLR=0.12535(Rbar=0.038)x(D3=0)=LCLRLCLR=01.2次试验对于D4=3.27,3次试验D4=2.58,UCLR表示单个极差的控制限.圈出那些超过控制限的点.识别原因纠正.使用与开始时相同的评价人和单位重复这些读数,或者放弃某些值,从保留的观察值重新平均,重新计算Rbarbar和控制限;2.备注:____________________________________________________________________________________________________________________________________________________3.评价人:ABC零件0.783上海宏宝1.0170.942评价人试验#均值0.830.83SallyAndyJack1.008#DIV/0!0.75#DIV/0!0.8250.458重复性与再现性数据收集表平均值0.5671.0080.8000.6670.830.83#DIV/0!0.79零件号/名称:日期:被测特性:规格:重复性—设备变差(EV)EV=×%EV=100[EV/TV]=×=100[0.17/0.93]==AV=[(XDIFF×K2)2-(EV)2/(n×r)]%AV=100[AV/TV]=[(0.06×2.7)2-(0.17)2/(10×2)]=100[0.157/0.93]==n=零件数r=试验次数%GRR=100[GRR/TV]=100[0.24/0.93]GRR=[(EV)2+(AV)2]==[(0.17)2+(0.157)2]=%PV=100[PV/TV]=100[0.90/0.93]PV=×==×=ndc=1.41(PV/GRR)=1.41(0.905/0.235)TV=[(GRR)2+(PV)2]=5=[(0.24)2+(0.90)2]=上海宏宝1.所有计算均系基于预计5.15s(正态分布曲线下99.0%的面积);2.判定准则:%GRR10%=可接受;%GRR─10%~30%=可能可接受(分析/检讨);%GRR30%=不可接受(分析/改善);并且ndc要≥5。0.0600.55842.32332.73.652.7根据数据表:Rbarbar=0.038XbarDIFF=零件变差(PV)RPK30.235K20.04可能可接受0.90581.7491.67总变差(TV)101.62量测系统之能力0.561.6296.78%0.93552.0861.9371.820.15723.6516.82%评价人0.17533.05测量系统分析%总变差(TV)RbarbarK14.56零件数K3重复性和再現性(GRR)18.70%再现性—评价人变差(AV)量具编号:人员:25.16%RP=24.56试验次数K1重复性与再现性报告表(续页)量具名称:量具精度:
本文标题:重复性与再现性(极差法)
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