田口實(shí)驗(yàn)方法簡(jiǎn)介-在線瀏覽
2024-08-04 16:54本頁面
【正文】 不大 . Rule 2 品 質(zhì) 工 程 的 概 念 DOE TAGUCHI METHOD(I) 品 質(zhì) 工 程 的 概 念 Quality Loss Function案例 Sony美國(guó)廠 Sony日本廠 與 產(chǎn)品比較 結(jié)論 理由 Distribution of color density in TV sets (1979 Data) Sony日本廠之 Grade A產(chǎn)品遠(yuǎn) 比 Sony美國(guó)廠 為多 . Meet Meet Target 之差異 . DOE TAGUCHI METHOD(I) Lower spec. Limit ︸ ︸ ︸ ︸ D D Upper spec. Limit Freq. Sony日本 C B A B C Quality Loss Function Make to Specification Step Function L(y) = Quality Loss k = coef. Of Quality Loss(cost) m = target value for y y = Quality charateristics Make to Target Value (ym) = Deviation from target Quadratic Loss Function Nomial the best Model L(y) = k(ym)2 L(y) L(y) = 0 y Ao m m + △ o m △ o L(y) Ao Accept Reject Reject m + △ o m △ o m y 品質(zhì)特性 LSL USL DOE TAGUCHI METHOD(I) Quality Loss Function DOE TAGUCHI METHOD(I) Nomial the best More than one piece MSD = Mean Square Deviation L = Loss k = Proportionality Constant m = Nomial value of the Quality Characteristic y = Average Value of y σ2 = Variance of y MSD =σ2 + (y m)2 Target value 因 MSD = Average of (y m) for n Sample ∴ MSD = Σ (yi m)2 n 1 n j I=1 或?qū)懗?:
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