Dorian Shainin多利安谢宁DOE方法.pdf

25 Run yA B C D E F G 1 1 1 1 1 1 1 1 y1 2 1 1 1 2 2 2 2 y2 3 1 2 2 1 1 2 2 y3 4 1 2 2 2 2 1 1 y4 5 2 1 2 1 2 1 2 y5 6 2 1 2 2 1 2 1 y6 7 2 2 1 1 2 2 1 y7 8 2 2 1 2 1 1 2 y8 Design of Experiments A1 =A2 ? Confidence Intervals Hypothesis testing y=f(x)y x Regression Analysis FMEA Process Map 440 500 560 620 680 740 95% Confidence Interval for Mu 568 578 588 598 608 95% Confidence Interval for Median Variable: SAT A-Squared: P-Value: Mean StDev Variance Skewness Kurtosis N Minimum 1st Quartile Median 3rd Quartile Maximum 577.323 57.159 570.711 0.329 0.512 590.240 65.101 4238.08 2.63E-02 -4.0E-01 100 426.000 542.250 598.000 640.000 740.000 603.157 75.626 605.000 Anderson-Darling Normality Test 95% Confidence Interval for Mu 95% Confidence Interval for Sigma 95% Confidence Interval for Median Descriptive Statistics Minitab Software Robust Design Tolerance Design Check Sheet Step 1 Step 2 Step 3 Mistake Proofing Room Dark OR No Power OR Bulb blown Switch failed Fault Tree Analysis,FTA Response Surface Studies Improve Phase – Useful Tools Define Improve ControlMeasure Analyse 26 Improve Phase Flowchart – Variation Reduction Categorise Critical x’s (Control Noise Factors) Develop Noise Factor Strategy Select Control Factors Levels Design Experiment Conduct Experiment Analyse Results Confirmation Run Set tolerances for x’s Verify Improvement (Tolerance Design) Confirmation OK? Project Objective Achieved? Go to Control Phase Determine Stability Capability of Critical x’s Yes No No Yes Review Project ? qsconsult www.qsconsult.be 1 Willy Vandenbrande Shainin: A concept for problem solving(Design of Exp=DOE) Lecture at the Shainin conference Amelior 11 December 2009 2? qsconsult Dorian Shainin (1914 – 2000) ? Aeronautical engineer (MIT – 1936) ? Design Engineer for United Aircraft Corporations ? Mentored by his friend Joseph M. Juran ? Reliability consultant for Grumman Aerospace (Lunar Excursion Module) ? Reliability consultant for PrattWhitney (RL-10 rocket engine