Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Maintainability Prediction in the Initial Design Phase between Weapon System Development

무기체계 개발간 초기 설계단계에서의 정비도 예측방안 연구

  • Kim, Yeoungseok (Department of Mechanical System Engineering, Kumoh National Institute of Technology) ;
  • Hur, Jangwok (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
  • 김영석 (금오공과대학교 기계시스템공학과) ;
  • 허장욱 (금오공과대학교 기계시스템공학과)
  • Received : 2019.08.30
  • Accepted : 2019.11.01
  • Published : 2019.12.05
Download PDF
⟨ Previous Next ⟩

Abstract

For effective development in consideration of the maintainability of the weapon system, it is necessary to understand whether the maintainability design requirements are satisfied at the early phase of development. This requires the application of an early design phase maintainability prediction process to provide opportunities for improvement. By defining the ambiguity group definition, fault isolation level, fault isolation probability, and countermeasures for faults, it was possible to predict early phase development. The MTTR of the initial design phase applying Procedure V to the artillery system was 3.46H, which is about 16 % higher than 2.98H, the MTTR using Procedure II. This is a result of system design ambiguity that has not been specified in the early phase of development.

Keywords

References

  1. MIL-STD-721C, Military Standard, "Definitions of Effectiveness Terms for Reliability, Maintainability, Human Factors, and Safety," Department of Defense, Washington, DC., p. 5, 1981.
  2. DAPA, "Weapon System RAM Task Guidelines," pp. 56-155, 2018.
  3. MIL-HDBK-472, Military Handbook, "Maintainability Prediction", Department of Defense, Washington, DC., p. 1, 1966.
  4. MIL-HDBK-470A, Military Handbook, "Designing and Developing Maintainability Products and Systems," Department of Defense, Washington, DC., pp. 30-45 (Appendix D), 1997.
  5. Oh, G. T., Kim M. S., Na Y. G., "A Comparison of Maintainability Prediction Methods," J. of the Korean Institute of Plant Engineering, Vol. 13, No. 2, pp. 69-76, 2010.
  6. Park Y. K., Joo. J. C., "MTTR Analysis through Comparison of Maintainability Prediction Procedures and Case Studies," Conference of Korean Institute of Industrial Engineers, pp. 804-810, 2010.
  7. Kim S. J., Hur J. W., "Maintainability Prediction Method Based on MIL-HDBK-470A Procedure V," Conference of the Korean Reliability Society, p. 61, 2019.
  8. Jo H. S., Kim J. W., Ko H. J., "A Study on the Intial Maintainability Prediction using MIL-HDBK-472 Procedure V," Conference of Korean Institute of Industrial Emgineers, pp. 846-855, 2010.
  9. Lee J. Y., "A Study on the Maintainability Prediction using MIL-HDBK-472," University of Suwon, pp. 32-90, 2008.
  10. Kim Y. S., Hur J. W., "A Study on the Prediction Plan of Korean Type Maintenance between Weapon System Development," Conference of the Korean Reliability Society, p. 73, 2018.
  11. Kim. Y. S., Hur J. W., "The Development of a Maintainability Prediction Software Based on MIL-HDBK-472 Procedure II," Journal of Applied Reliability, pp. 160-166, 2019.