GOST R ISO 22514-6-2014 Statistical methods Process management Part 6 Process capability statistics for multivariate normal distribution《统计方法 过程管理 第6部分 多元正态分布的过程能力统计》.pdf

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4、tatistics for multivariate normal distribution 201512 01 1 - , , - ( ) . , - , . - . . . 2 : O 22514-1 . -. 1. (ISO 22514-1 Statistical methods in process management Capability and performance Part 1: General principles and concept) O 22514-2 . -. 2. (ISO 22514-2 Statis-tical methods in process mana

5、gement Capability and performance Part 2: Process capability and per-formance of time-dependent process models) 3 22514-1 22514-2, - . 3.1 (quantity): , - . / 99:2007, 1.1 22514-6 2014 2 3.2 (multivariate quantity): , . 1 d-, , d . 2 xi , i = 1, 2. d, x = (x1, x2, . xd)T . , - . d- . 3 - . 4 , , . 5

6、 , x = (x1, x2, . xd) , , d- . 1 x1 , x2 x3- -. . , d = 3. 2 . - x y. x, x1 , x2 . 3 . 3.3 (tolerance region): (3.2). 1 d- , , . . 2 , ( ), , , - . 1 - . 3 . , , . ( ). 4 , . 1101 . -, , . 22514-6 2014 3 A) B) C) A 1, a2, x y; B d, x y; C 1, a2, b, x y 1 (x1, x2)T 3.4 (process capability): , (3.1), , -. 1 - 2 Cp. 3.5 (estimated process capability): (3.4), . 3.6 (process performance): , , , . 3.7 (estimated process performance): - (3.6), . 4 MMC ; PCI (). 5 . - , . , - , , . , . , - , , -. 22514-6 2014 4 , , , , - . , . , . ( 22514-2.) - . , 125. 6 , - ( ) , . Cp , p . p, . p. , : - ; - ( , ,