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http://dx.doi.org/10.5762/KAIS.2019.20.9.247

A Practical Method for Predicting Initial Maintenance Time To Repair (MTTR) Using Maintenance Complexity in Equipment Design  

Shin, Sang-Hee (LIGNex1 Co. Ltd)
Lee, Hak-Jae (LIGNex1 Co. Ltd)
Hwang, Seong-Guk (LIGNex1 Co. Ltd)
Kim, Moo-Young (LIGNex1 Co. Ltd)
Kwon, Ki-Sang (LIGNex1 Co. Ltd)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.9, 2019 , pp. 247-254 More about this Journal
Abstract
Recently, in designing military equipment, considerable attention has been paid to maintaining operations, including reliability, maintenance, and maintenance time of equipment, from the early stages of development. Therefore, both users and developers stress the importance of design considering the maintenance time. This study evaluated the specific methodologies for predicting the realistic maintenance time, such as the access complexity of equipment, other than the standard maintenance time provided by the conventional method mil-hdbk-470a at the beginning of the design, and applied the time conversion factor using a measure of the maintenance complexity. In addition, the actual maintenance time reflecting the actual maintenance time of the developed equipment and the time-conversion factor applied was compared/verified to confirm the reliability of the data. In a study to set a target for repair and the repair of equipment design in the future, it is expected that the maintenance time of equipment that fails to measure the maintenance time for the initial actual equipment will be reflected as a more realistic time. Moreover, activities, such as research and design reflection activities, will be performed to reduce the maintenance time, operational maintenance cost, etc.
Keywords
ILS(Intergrated Logistic Support); MTTR (Maintenance Time To Repair); Maintenance Complexity; Time Conversion Factor; Delay Time;
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  • Reference
1 Thomas Pyzdek, Paul Keller, " 6 SIGMA HANDBOOK, 2009".McGraw Hill Professional, New york, USA
2 MIL-HDBK-470A, DESIGNING AND DEVELOPING MAINTAINABLE PRODUCTS AND SYSTEMSDepartment of Defense. USA
3 S. H. Shin, "Calculating Maintenance Time Considering Maintenance Complexity" (KIIE:Korean Institute of Industrial Engineers) 2016.11. 2,402-2,411 (10 pages) DOI: http://jkiie.org/