Preventive maintenance scheduling based on failure data in a medical device manufacturing facility
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.
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| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2010
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| Online Access: | http://hdl.handle.net/1721.1/55226 |
| _version_ | 1826206777039912960 |
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| author | Mohd Fauzi, Mohammed Faizal B |
| author2 | Stephen C. Graves. |
| author_facet | Stephen C. Graves. Mohd Fauzi, Mohammed Faizal B |
| author_sort | Mohd Fauzi, Mohammed Faizal B |
| collection | MIT |
| description | Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009. |
| first_indexed | 2024-09-23T13:38:05Z |
| format | Thesis |
| id | mit-1721.1/55226 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T13:38:05Z |
| publishDate | 2010 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/552262019-04-12T15:24:09Z Preventive maintenance scheduling based on failure data in a medical device manufacturing facility Mohd Fauzi, Mohammed Faizal B Stephen C. Graves. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009. Cataloged from PDF version of thesis. Includes bibliographical references (p. 80-81). This study was conducted at a medical device production facility where analysis was done on the reliability of Product S barrel molds for the purpose of predicting preventive maintenance (PM) schedule. Pareto Rule was utilized to filter out the defect-types that are causing 80% of the defect occurrences. Defect density was introduced, i.e. the ratio between total number of defects occurred per cavity position to the total types of defects occurring on that same position, as a performance measure to track defects over the mold cavities . Statistical distribution tests on the failure times of the molds were carried out and found that the failure times for the molds differ. Mold failure times follow the log normal or Weibull distribution. Parameter estimates obtained from probability plots of these distributions were used to obtain the mean-time-to-failure (MTTF) and reliability of the molds. Finally, this study looked into the scheduled preventive maintenance (PM) of the molds based on the current PM task list. Failure times based on individual mold PM task lists that correspond to the mitigation of the priority defect-types, were collected and assigned a statistical distribution. After which, we analyzed the expected number of annual mold failures based on the relevant parameters of the failure times distribution and the various PM scheduling policies proposed, to derive a recommendation on the optimal PM interval to be performed in a year. by Mohammed Faizal B Mohd Fauzi. M.Eng. 2010-05-25T21:06:53Z 2010-05-25T21:06:53Z 2009 2009 Thesis http://hdl.handle.net/1721.1/55226 611950538 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 [i], 103 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Mohd Fauzi, Mohammed Faizal B Preventive maintenance scheduling based on failure data in a medical device manufacturing facility |
| title | Preventive maintenance scheduling based on failure data in a medical device manufacturing facility |
| title_full | Preventive maintenance scheduling based on failure data in a medical device manufacturing facility |
| title_fullStr | Preventive maintenance scheduling based on failure data in a medical device manufacturing facility |
| title_full_unstemmed | Preventive maintenance scheduling based on failure data in a medical device manufacturing facility |
| title_short | Preventive maintenance scheduling based on failure data in a medical device manufacturing facility |
| title_sort | preventive maintenance scheduling based on failure data in a medical device manufacturing facility |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/55226 |
| work_keys_str_mv | AT mohdfauzimohammedfaizalb preventivemaintenanceschedulingbasedonfailuredatainamedicaldevicemanufacturingfacility |