Designing Capable and Reliable Products Episode 13 pot

... is given by: L  F ab where L  stress, F  load, and a and b  sectional dimensions of the bar. The variables F, a and b are all assumed to random in nature following the Normal distribution ... and a and b  sectional dimensions of the bar. The variables F, a and b have Normal parameters: F $ N100; 10kN a $ N0:03; 0:0003m b $ N0:04; 0:0004m Using the variance equation, the...

Ngày tải lên: 13/08/2014, 08:20

... processes Sand casting ± Steel and iron Sand casting ± Copper alloys Sand casting ± Aluminium and magnesium alloys Shell moulding ± Steel, iron and copper alloys Shell moulding ± Aluminium and magnesium ... suppliers and possibly fewer quality problems . Systematic component costing and process selection . Improved yields . Lower component and assembly costs . Standardize compon...

Ngày tải lên: 13/08/2014, 08:20

... System of Limits and Fits ± Tables of Standard Tolerance Grades and Limit Deviations for Holes and Shafts. London: BSI. BS EN ISO 9000 1994: Quality Management and Quality Assurance Standards. London: ... International 1997a: Handbook No. 1. Properties and Selection: Irons, Steels and High Performance Alloys, 10th Edition. OH: ASM International. ASM International 1997b: Handbook N...

Ngày tải lên: 13/08/2014, 08:20

... assembly analysis for Design A 96 Designing capable components and assemblies Figure 2.28 Variability risks table for the cover support leg 82 Designing capable components and assemblies where:   mean ... requirements and will inevitably present problems using 92 Designing capable components and assemblies ®xing bolt is supplied in a feeder and does not have characteri...

Ngày tải lên: 13/08/2014, 08:21

... demand leads to higher manufacturing costs, and a looser tolerance or lower accuracy demand leads to lower manufacturing costs (Dong, 1997). 114 Designing capable assembly stacks 4 Designing reliable ... going to be capable, and if not what components require redesigning. In addition to understanding the statistical tolerance stack models and the FMEA process in developing a pr...

Ngày tải lên: 13/08/2014, 08:21

... application in sequence is independent and belongs to the same load distribution and it is assumed that the material suers no strength 178 Designing reliable products and in fact load spectrums tend ... (N) Standard deviation  (N) Push 608 410 169 908 383 147 1208 459 192 1508 548 201 1808 615 218 Pull 608 281 103 908 392 134 1208 464 138 1508 544 161 1808 535 165 176 Desig...

Ngày tải lên: 13/08/2014, 09:20

... q m and C pk and (b) q m and C p (with 95% con®dence limits) 58 Designing capable components and assemblies metal, pipes, wires and a variety of other components held together by nuts, bolts and rivets. ... 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 asse...

Ngày tải lên: 06/08/2014, 15:21

... methodology 74 Designing capable components and assemblies A standard for the minimum acceptable process capability index for any component/characteristic is normally set at C pk  1:33, and this standard ... Analysis procedure ¯owchart 78 Designing capable components and assemblies Figure 2.30 Variability risks table for the ®xing bolt assembly 84 Designing capable componen...

Ngày tải lên: 06/08/2014, 15:21

... and the way products later fail in service. An introduction to risk and risk assessment provides the reader with the underlying concepts of the approaches for designing capable and reliable products. ... (Kotz and Lovelace, 1998; Vasseur et al., 1992). Making the product robust to variation is the driving force behind designing capable and reliable products, lessens...

Ngày tải lên: 27/06/2014, 17:20

... manufacturing industry. In Chapter 4, a probabilistic design x Preface Designing Capable and Reliable Products Designing Capable and Reliable Products J.D. Booker University of Bristol, UK M. Raines K.G. ... approaches for designing capable and reliable products. The chapter ends with a review of the key principles in designing for quality and reliability, fro...

Ngày tải lên: 06/08/2014, 15:21