Process Capability Indices as Fuzzy Numbers

Autor: Abbas Parchami, Mashaallah Mashinchi, Ali Reza Yavari, Hamid Reza Maleki
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Austrian Journal of Statistics, Vol 34, Iss 4 (2016)
Druh dokumentu: article
ISSN: 1026-597X
DOI: 10.17713/ajs.v34i4.425
Popis: Most of the traditional methods for assessing the capability of manufacturing processes are dealing with crisp quality. In this paper we discuss the fuzzy quality and introduce fuzzy process capability indices, where instead of precise quality we have two membership functions for specification limits. These indices are necessary when the specification limits are fuzzy and they are helpful for comparing manufacturing processes with fuzzy specification limits. Some interesting relations among the introduced indices are obtained. Numerical examples are given to clarify the method.
Databáze: Directory of Open Access Journals