Mohammad Pour Larimi, A., Nemati keshteli, R., Safaei, A. (2018). Functional process capability indices for nonlinear profile. Journal of Industrial and Systems Engineering, 12(Special issue on Statistical Processes and Statistical Modeling), 1-14.

Ahmad Mohammad Pour Larimi; Ramezan Nemati keshteli; Abdul Sattar Safaei. "Functional process capability indices for nonlinear profile". Journal of Industrial and Systems Engineering, 12, Special issue on Statistical Processes and Statistical Modeling, 2018, 1-14.

Mohammad Pour Larimi, A., Nemati keshteli, R., Safaei, A. (2018). 'Functional process capability indices for nonlinear profile', Journal of Industrial and Systems Engineering, 12(Special issue on Statistical Processes and Statistical Modeling), pp. 1-14.

Mohammad Pour Larimi, A., Nemati keshteli, R., Safaei, A. Functional process capability indices for nonlinear profile. Journal of Industrial and Systems Engineering, 2018; 12(Special issue on Statistical Processes and Statistical Modeling): 1-14.

Functional process capability indices for nonlinear profile

^{1}Department of Industrial Engineering, Mazandaran Institute of Technology, Babol, Iran

^{2}Faculty of Engineering Eastern Guilan, Guilan University, Babol, Iran

^{3}Department of Industrial Engineering, Babol University of Technology, P.O. Box 47148 - 71167, Babol, Iran

Abstract

A profile is a relationship between a response variable and one or more independent variables being controlled during the time. Process Capability Indices (PCI) are measured to evaluate the performance of processes in producing conforming products. Despite frequent applications of profile and a variety of available methods to monitor its different types, little researches have been carried out on determining capability indices of profile process. PCIs such as and in profile state, are used to evaluate process capability in producing conforming profiles. This paper presents a functional approach for nonlinear profiles which usually expressed as nonlinear regression. Thus, functions such as pertaining technical specification limits, mean and natural tolerance limits are determined as nonlinear profiles and also functional limit is applied to determine Functional Capability Indices (FCI) and of functional nonlinear profile. Easy calculation and the ability to calculate FC in each period and at each point are from the advantages of this method over the other methods.

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