Optimization design of the EWMA and X-bar chart

The design and optimization of Statistical process control (SPC) charts such as the Shewhart X-bar and the Exponential Weighted Moving Average Chart (EWMA) in order to achieve enhanced performance and high efficiency of its application in process quality control. It is accomplished by minimizing the...

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Main Author: Tham, Kelly Yunci.
Other Authors: Wu Zhang
Format: Final Year Project
Language:English
Published: 2010
Subjects:
Online Access:http://hdl.handle.net/10356/39880
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-398802023-03-04T18:34:22Z Optimization design of the EWMA and X-bar chart Tham, Kelly Yunci. Wu Zhang School of Mechanical and Aerospace Engineering DRNTU::Engineering::Manufacturing::Quality control The design and optimization of Statistical process control (SPC) charts such as the Shewhart X-bar and the Exponential Weighted Moving Average Chart (EWMA) in order to achieve enhanced performance and high efficiency of its application in process quality control. It is accomplished by minimizing the loss function E which is related to the monetary loss due to poor quality product. The aim is to obtain an optimized sample size n for X-bar chart and parameter λ for EWMA chart, and sample interval h for both charts. Performance comparisons between the EWMA and Shewhart X-bar charts are conducted based on the minimized loss function. Numerical case examples will be used to illustrate the comparison and the applications of these optimized EWMA and Shewhart X-bar charts in production process scenarios. Bachelor of Engineering 2010-06-07T08:05:23Z 2010-06-07T08:05:23Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/39880 en Nanyang Technological University 68 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Manufacturing::Quality control
spellingShingle DRNTU::Engineering::Manufacturing::Quality control
Tham, Kelly Yunci.
Optimization design of the EWMA and X-bar chart
description The design and optimization of Statistical process control (SPC) charts such as the Shewhart X-bar and the Exponential Weighted Moving Average Chart (EWMA) in order to achieve enhanced performance and high efficiency of its application in process quality control. It is accomplished by minimizing the loss function E which is related to the monetary loss due to poor quality product. The aim is to obtain an optimized sample size n for X-bar chart and parameter λ for EWMA chart, and sample interval h for both charts. Performance comparisons between the EWMA and Shewhart X-bar charts are conducted based on the minimized loss function. Numerical case examples will be used to illustrate the comparison and the applications of these optimized EWMA and Shewhart X-bar charts in production process scenarios.
author2 Wu Zhang
author_facet Wu Zhang
Tham, Kelly Yunci.
format Final Year Project
author Tham, Kelly Yunci.
author_sort Tham, Kelly Yunci.
title Optimization design of the EWMA and X-bar chart
title_short Optimization design of the EWMA and X-bar chart
title_full Optimization design of the EWMA and X-bar chart
title_fullStr Optimization design of the EWMA and X-bar chart
title_full_unstemmed Optimization design of the EWMA and X-bar chart
title_sort optimization design of the ewma and x-bar chart
publishDate 2010
url http://hdl.handle.net/10356/39880
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