Designing Capable and Reliable Products Episode 1 Part 4 pot

... risk chart, s p 48 Designing capable components and assemblies Figure 2 .16 Assembly sequence diagram for a castor wheel 62 Designing capable components and assemblies Figure 2 .13 Process capability ... sheet Figure 2 .15 Empirical relationships between (a) q m and C pk and (b) q m and C p (with 95% con®dence limits) 58 Designing capable components and assemblies...

Ngày tải lên: 06/08/2014, 15:21

... Normal distribution. C pk  j ÿ L n j 3 2 : 14  µ = 49 .575 mm = 49 .5 mm σ = 0.8 61 mm = 41 Superimposed Normal distribution 47 47 .5 48 48 .5 49 49 .5 50 50.5 51 51. 5 52 52.5 53 Frequency 12 10 8 6 4 2 0 Figure 2.27 Statistical ... of: P f 30 Â 10 ÿ6  2  9 Â 10 10 2 :13  Again, this standard aligns with the costs of failure analysis below. Figure 2 .19 Typ...

Ngày tải lên: 06/08/2014, 15:21

... Abbreviations 1 Introduction to quality and reliability engineering 1. 1 Statement of the problem 1. 2 The costs of quality 1. 3 How and why products fail 1. 4 Risk as a basis for design 1. 5 Designing ... widely by manufacturing industry. In Chapter 4, a probabilistic design x Preface Designing Capable and Reliable Products Designing Capable and Reliable...

Ngày tải lên: 06/08/2014, 15:21

... a functional tool for decision making (Villemeur, 19 92). A technique which `quanti®es' safety is FMEA. 1. 4 .1 The role of FMEA in designing capable and reliable products In light of the above arguments, ... (Kotz and Lovelace, 19 98; Vasseur et al., 19 92). Making the product robust to variation is the driving force behind designing capable and reliable prod...

Ngày tải lên: 06/08/2014, 15:21

... all the potential risks of failure and their consequences, both from normal use and fore- seeable misuse, is a key element in designing capable and reliable products (Wright, 19 89). 1. 5 Designing ... there is relatively little work Figure 1. 19 The FMEA input into designing capable and reliable products Designing for quality 25 Hooper, 19 86; Carter, 19 97)....

Ngày tải lên: 06/08/2014, 15:21

... analysis 94 Designing capable components and assemblies Figure 2. 41 Assembly sequence diagram for the solenoid end assembly design 10 0 Designing capable components and assemblies Figure 2. 34( b) shows ... ®ve. Figure 2 .45 Variability risks analysis for the solenoid end assembly redesign 10 4 Designing capable components and assemblies Figure 2. 34 Hub analysis...

Ngày tải lên: 06/08/2014, 15:21

... (%) t 2 =t 2 a  10 0 Variance contribution (%)  H2 = 2 a  10 0 1 1.2 1 0. 010 1. 7 0.002 0.06 0. 04 2 1. 2 1. 1 0.250 1. 7 0.060 37.55 37.70 3 1 1 0.085 1. 7 0.020 4. 34 4 .19 4 1. 2 1. 7 0.300 1. 7 0.072 54. 07 54. 28 5 ... 54. 28 5 1 1 0.0 04 1. 7 0.0 01 0. 01 0. 01 6 1 1 0.080 1. 7 0. 019 3.85 3.78 Assembly tolerance, t a Æ0 :40 8 mm Assembly standard de...

Ngày tải lên: 06/08/2014, 15:21

... in Ayyub and McCuen (19 97), Edwards and McKee (19 91) , Kottegoda and Rosso (19 97), Leitch (19 95), Lewis (19 96), Metcalfe (19 97), Mischke (19 92), Rao (19 92), and Shigley and Mischke (19 89). Straight ... designer and manufacturer over product safety in order to avoid user injury or Figure 4 .1 The `true' margin of safety (adapted from Furman, 19 81 and Nixon,...

Ngày tải lên: 06/08/2014, 15:21

... F i  i N  1 z  È 1 SND F i  (x-axis) (N  52) ( y-axis) ( y-axis) 4 31. 0 1 1 0. 018 87 ÿ2.08 44 4.8 0 1 45 8.6 2 3 0.05660 1. 59 47 2 .4 3 6 0 .11 3 21 1. 21 48 6.2 2 8 0 .15 0 94 1. 03 500.0 3 11 0.20755 ... ÿ0.82 513 .8 4 15 0.28302 ÿ0.57 527.6 5 20 0.37736 ÿ0. 31 5 41 . 4 13 33 0.622 64 0. 31 555.2 5 38 0. 716 98 0.58 569.0 5 43 0. 811 32 0.88 582.8 5 4...

Ngày tải lên: 06/08/2014, 15:21

... changes the limits of integration to 0 to 1, as shown in Figure 4. 29, to give the reliability, R,as: R   1 0 GdH 4: 44 or R  1 ÿ  1 0 HdG 4: 45 Equation 4. 44 is solved using Simpson's Rule ... of a strength S 1 in an interval dS 1 is: PS 1 ÿ dS 1 2 S S 1  dS 1 2   fS 1 dS 1  A 1 4: 28 The probability of occurrence of a loading stress less than...

Ngày tải lên: 06/08/2014, 15:21