ENBIS-21 Online Conference

Session

Quality 1

PS21_C1

14 Sept 2021, 10:40

Online

Conveners

Quality 1

• Chair: Christian Capezza

11. The study of variability in engineering design—An appreciation and a retrospective

Tim Davis (We Predict Ltd. & timdavis consulting ltd.)

14/09/2021, 10:40

Quality

We explore the concept of parameter design applied to the production of glass beads in the manufacture of metal-encapsulated transistors. The main motivation is to complete the analysis hinted at in the original publication by Jim Morrison in 1957, which was possibly the first example of exploring the idea of transmitted variation in engineering design, and an influential paper in the...

21. Attribute-Variable Alternating Inspection (AVAI): The use of $np_x-S^2$ mixed control chart in monitoring the process variance

Leandro Alves da Silva (Universidade de São Paulo, São Paulo SP, Brazil.)

14/09/2021, 11:00

The presence of variation is an undesirable (but natural) factor in processes. Quality improvement practitioners search constantly for efficient ways to monitor it, a primary requirement in SPC. Generally, inspections by attributes are cheaper and simpler than inspections by variables, although they present poor performance in comparison. The $S^2$ chart is widely applied in monitoring process...

58. Railway track degradation prediction using Wiener process modelling

mahdieh sedghi

14/09/2021, 11:20

Reliability

Track geometry is critical for railway infrastructures, and the geometry condition and the expected degradation rate are vital for planning maintenance actions to assure the tracks’ reliability and safety. The degradation prediction accuracy is, therefore, essential. The Wiener process has been widely used for degradation analysis in various applications based on degradation measurements. In...

102. Long short-term memory neural network for statistical process control of autocorrelated multiple stream process with an application to HVAC systems in passenger rail vehicles

Mr Gianluca Sposito (Department of Industrial Engineering, University of Naples Federico II)

14/09/2021, 11:40

Quality

Rail transport demand in Europe has increased over the last few years, and passenger thermal comfort has been playing a key role in the fierce competition among different transportation companies. Furthermore, European standards settle operational requirements of passenger rail coaches in terms of air quality and comfort level. To meet these standards and the increasing passenger thermal...