Aplicação de técnicas tradicionais e de séries temporais no controle estatístico da qualidade
DOI:
https://doi.org/10.5902/2179460X26540Keywords:
Mudanças na média do processo, Controle de Qualidade, Shewhart, Somas Acumuladas, Alisamento Exponencial.Abstract
In this paper the Statistical Quality Control of the production line of three machines of MAXION company, from Canoas, RS, by the basic procedure of Shewhart, as well as the alternative techniques; technique of Cumulative Sum (CUSUM) and Model of Exponential Smoothing are presented. On synthesis, notice that the procedure of Shewhart can be used at the detection of great changes at the mean of process and the method of cumulative sum is more efficient to detect little changes at the mean of process.Downloads
References
ÄSTROM, K.J. (1970). Introduction to stochastic control. Mathematics in science and engeneering series. 70. Academic Press.
HUNTER, J. S. (1986). The exponentially weighted moving average. Journal of Quality Technology 18, p. 203-210.
JOHNSON, N. L. (1961). A sim pie theoretical approach to cumulative sum control chart. Journal of the American Statistical Association, 56, p. 835-840.
KIRKENDALL, N. J. (1989). The relationship between Certain Kalman Filter
Models and Exponential Smoothing Models. Quality and reability.
MAcGREGOR, J. F. (1972). Topics in the control of linear processes subject to stochastic disturbances. Ph.D. dissertation, University of Wisconsin - Madison.
MONTGOMERY, D. C. (1968). Introduction to statistical Quality Control. Wiley, New York.
MONTGOMERY, D. C. & JOHNSON, L. A. (1976). Forecasting and time series analysis. New York, McGraw-Hill.
RADHARAMANAN, R.; GALELLI, D. T. & PERES, L. L. (1994). Sensitivity analysis on the CUSUM method Amsterdan, Elsevier, International Journal of Production Economics, v. 33, p. 89 - 95.
REYNOLDS, M. R. Jr; AMIM, R. W. & ARNOLD, J. C. (1990). CUSUM chart wich variable sampling intervals. Technometrics, vol 32, p. 371 - 384.
SACCUCCI, M. S. & LUCAS, J. M. (1990). Average run lengths for exponnencially weighted moving average control schemes using the Markov chain approach. Jornal of Quality Technology, vol. 22, p. 154 - 162.
SHEWHART, W. A. (1931). Economic control of Quality of manufactured product. New York, D. Van Nostrand.
SWEET, A. (1986). Control charts using compled exponencially weighted moving averages. 11E Transaction, March, 26 – 33.
Downloads
Published
How to Cite
Issue
Section
License
To access the DECLARATION AND TRANSFER OF COPYRIGHT AUTHOR’S DECLARATION AND COPYRIGHT LICENSE click here.
Ethical Guidelines for Journal Publication
The Ciência e Natura journal is committed to ensuring ethics in publication and quality of articles.
Conformance to standards of ethical behavior is therefore expected of all parties involved: Authors, Editors, Reviewers, and the Publisher.
In particular,
Authors: Authors should present an objective discussion of the significance of research work as well as sufficient detail and references to permit others to replicate the experiments. Fraudulent or knowingly inaccurate statements constitute unethical behavior and are unacceptable. Review Articles should also be objective, comprehensive, and accurate accounts of the state of the art. The Authors should ensure that their work is entirely original works, and if the work and/or words of others have been used, this has been appropriately acknowledged. Plagiarism in all its forms constitutes unethical publishing behavior and is unacceptable. Submitting the same manuscript to more than one journal concurrently constitutes unethical publishing behavior and is unacceptable. Authors should not submit articles describing essentially the same research to more than one journal. The corresponding Author should ensure that there is a full consensus of all Co-authors in approving the final version of the paper and its submission for publication.
Editors: Editors should evaluate manuscripts exclusively on the basis of their academic merit. An Editor must not use unpublished information in the editor's own research without the express written consent of the Author. Editors should take reasonable responsive measures when ethical complaints have been presented concerning a submitted manuscript or published paper.
Reviewers: Any manuscripts received for review must be treated as confidential documents. Privileged information or ideas obtained through peer review must be kept confidential and not used for personal advantage. Reviewers should be conducted objectively, and observations should be formulated clearly with supporting arguments, so that Authors can use them for improving the paper. Any selected Reviewer who feels unqualified to review the research reported in a manuscript or knows that its prompt review will be impossible should notify the Editor and excuse himself from the review process. Reviewers should not consider manuscripts in which they have conflicts of interest resulting from competitive, collaborative, or other relationships or connections with any of the authors, companies, or institutions connected to the papers.
