Bivariate quality control using two-stage intelligent monitoring scheme
In manufacturing industries, it is well known that process variation is a major source of poor quality products. As such, monitoring and diagnosis of variation is essential towards continuous quality improvement. This becomes more challenging when involving two correlated variables (bivariate), wher...
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| Format: | Article |
| Language: | English |
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ScienceDirect
2014
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| Online Access: | http://eprints.uthm.edu.my/4479/1/AJ%202018%20%2892%29.pdf |
| _version_ | 1796869028401119232 |
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| author | Masood, Ibrahim Hassan, Adnan |
| author_facet | Masood, Ibrahim Hassan, Adnan |
| author_sort | Masood, Ibrahim |
| collection | UTHM |
| description | In manufacturing industries, it is well known that process variation is a major source of poor quality products. As such, monitoring and diagnosis of variation is essential towards continuous quality improvement. This becomes more challenging when involving two correlated variables (bivariate), whereby selection of statistical process control (SPC) scheme becomes more critical. Nevertheless, the existing traditional SPC schemes for bivariate quality control (BQC) were mainly designed for rapid detection of unnatural variation with limited capability in avoiding false alarm, that is, imbalanced monitoring performance. Another issue is the difficulty in identifying the source of unnatural variation, that is, lack of diagnosis, especially when dealing with small shifts. In this research, a scheme to address balanced monitoring and accurate diagnosis was investigated. Design consideration involved extensive simulation experiments to select input representation based on raw data and statistical features, artificial neural network recognizer design based on synergistic model, and monitoring–diagnosis approach based on twostage technique. The study focused on bivariate process for cross correlation function, q = 0.1–0.9 and mean shifts, l = ±0.75–3.00 standard deviations. The proposed two-stage intelligent monitoring scheme (2S-IMS) gave superior performance, namely, average run length, ARL1 = 3.18–16.75 (for out-of-control process), ARL0 = 335.01–543.93 (for in-control process) and recognition accuracy, RA = 89.5–98.5%. This scheme was validated in manufacturing of audio video device component. This research has provided a new perspective in realizing balanced monitoring and accurate diagnosis in BQC. |
| first_indexed | 2024-03-05T21:48:41Z |
| format | Article |
| id | uthm.eprints-4479 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English |
| last_indexed | 2024-03-05T21:48:41Z |
| publishDate | 2014 |
| publisher | ScienceDirect |
| record_format | dspace |
| spelling | uthm.eprints-44792021-12-07T04:05:03Z http://eprints.uthm.edu.my/4479/ Bivariate quality control using two-stage intelligent monitoring scheme Masood, Ibrahim Hassan, Adnan T Technology (General) TJ Mechanical engineering and machinery TS155-194 Production management. Operations management In manufacturing industries, it is well known that process variation is a major source of poor quality products. As such, monitoring and diagnosis of variation is essential towards continuous quality improvement. This becomes more challenging when involving two correlated variables (bivariate), whereby selection of statistical process control (SPC) scheme becomes more critical. Nevertheless, the existing traditional SPC schemes for bivariate quality control (BQC) were mainly designed for rapid detection of unnatural variation with limited capability in avoiding false alarm, that is, imbalanced monitoring performance. Another issue is the difficulty in identifying the source of unnatural variation, that is, lack of diagnosis, especially when dealing with small shifts. In this research, a scheme to address balanced monitoring and accurate diagnosis was investigated. Design consideration involved extensive simulation experiments to select input representation based on raw data and statistical features, artificial neural network recognizer design based on synergistic model, and monitoring–diagnosis approach based on twostage technique. The study focused on bivariate process for cross correlation function, q = 0.1–0.9 and mean shifts, l = ±0.75–3.00 standard deviations. The proposed two-stage intelligent monitoring scheme (2S-IMS) gave superior performance, namely, average run length, ARL1 = 3.18–16.75 (for out-of-control process), ARL0 = 335.01–543.93 (for in-control process) and recognition accuracy, RA = 89.5–98.5%. This scheme was validated in manufacturing of audio video device component. This research has provided a new perspective in realizing balanced monitoring and accurate diagnosis in BQC. ScienceDirect 2014 Article PeerReviewed text en http://eprints.uthm.edu.my/4479/1/AJ%202018%20%2892%29.pdf Masood, Ibrahim and Hassan, Adnan (2014) Bivariate quality control using two-stage intelligent monitoring scheme. Expert Systems with Applications, 41 (16). pp. 7579-7595. ISSN 0957-4174 https://doi.org/10.1016/j.eswa.2014.05.042 |
| spellingShingle | T Technology (General) TJ Mechanical engineering and machinery TS155-194 Production management. Operations management Masood, Ibrahim Hassan, Adnan Bivariate quality control using two-stage intelligent monitoring scheme |
| title | Bivariate quality control using two-stage intelligent monitoring scheme |
| title_full | Bivariate quality control using two-stage intelligent monitoring scheme |
| title_fullStr | Bivariate quality control using two-stage intelligent monitoring scheme |
| title_full_unstemmed | Bivariate quality control using two-stage intelligent monitoring scheme |
| title_short | Bivariate quality control using two-stage intelligent monitoring scheme |
| title_sort | bivariate quality control using two stage intelligent monitoring scheme |
| topic | T Technology (General) TJ Mechanical engineering and machinery TS155-194 Production management. Operations management |
| url | http://eprints.uthm.edu.my/4479/1/AJ%202018%20%2892%29.pdf |
| work_keys_str_mv | AT masoodibrahim bivariatequalitycontrolusingtwostageintelligentmonitoringscheme AT hassanadnan bivariatequalitycontrolusingtwostageintelligentmonitoringscheme |