Paper Information

Journal:   SCIENTIA IRANICA   2014 , Volume 21 , Number 3 (TRANSACTIONS E: INDUSTRIAL ENGINEERING); Page(s) 1044 To 1050.
 
Paper: 

DEVELOPING FUNCTIONAL PROCESS CAPABILITY INDICES FOR SIMPLE LINEAR PROFILE

 
 
Author(s):  NEMATI KESHTELI R., BARADARAN KAZEMZADEH R.*, AMIRI A., NOOROSSANA R.
 
* DEPARTMENT OF INDUSTRIAL ENGINEERING, FACULTY OF ENGINEERING, TARBIAT MODARES UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

A pro le is a relation between one response variable and one or more explanatory variables that represent the quality of a product or the performance of a process. Process Capability Indices (PCI) is measured to evaluate processes in producing conforming products. All existing methods that measure process capability indices in a simple linear pro le consider response variables at some levels of explanatory variable and ignore all ranges of x-values. In this paper, a functional approach is proposed to measure the process capability index of simple linear pro les in all ranges of explanatory variable. This new approach follows the traditional de nition of process capability indices and leads to their accurate values for a simple linear pro le. The functional approach uses a reference pro le, functional speci cation limits and functional natural tolerance limits to present a functional form of process capability indices. This functional form results in measuring the process capability at each level of the explanatory variable in a simple linear pro le, as well as the unique value of a process capability index for a simple linear pro le. A comparison study using a non-conforming proportion method shows the better performance of functional process capability indices in measuring the process capability in a simple linear pro le.

 
Keyword(s): PRO LE MONITORING, SIMPLE LINEAR PRO LE, FUNCTIONAL PROCESS CAPABILITY INDEX, SPECI CATION LIMITS, NATURAL TOLERANCE LIMITS
 
References: 
  • ندارد
 
  pdf-File tarjomyar Yearly Visit 82
 
Latest on Blog
Enter SID Blog