Developing the Optimized Method of Reliability-Growth Target Setting for Complex and Repairable Products from Business View

  • Received : 2015.09.14
  • Accepted : 2015.10.11
  • Published : 2015.12.25

Abstract

Purpose : The purpose of this research is to develop the optimized method and process in the reliability-growth target setting, especially for complex and repairable system (or products) such as vehicle and airplane, construction equipment. Method : A reliability-growth test plan specifies a scenario to achieve the planned reliability value (or reliability target). The major elements in test planning are reliability-growth starting time and reliability level at that time, reliability-growth rate and reliability-growth target. All of them except a reliability target can be referred to the previous development data and reference researches. The reliability target level is directly influencing to test period (or time) which is related to test and warranty cost together. There are a few researches about the reliability target setting method and but showing the limitations to consider the views of engineering, business and customer together. There is no research how to handle the target setting process in detail. Result : We develop the optimized method and systematic process in reliability target setting with considering such views. This research also establish the new concept as production capability which means company (or supplier) capability to product its products. Conclusion : In this research result, we apply the new method to a few projects and can set the reasonable test planning. The developing results is showing the good balance between the developing cost and warranty cost at market.

Keywords

References

  1. Bartholdt, M., Schweizer, V. and Bertsche, B. (2014), Determination of Target Reliability Levels Based on Value to the Customer and Warranty Budgets, Probabilistic Safety Assessment and Management PSAM 12, June, Honolulu, Hawaii.
  2. Braun, H. and Paine, J. M. (1977), A Comparative Study of Models for Reliability Growth, Princeton University, Princeton, New Jersey 08540, Technical Report No. 126, Series 2.
  3. Burnett, R. (1997), A trade-off method between cost and reliability, IEEE, Computer Science Society, Proceedings, XVII International Conference of the Chilean, 10-15 Nov, pp. 21-28.
  4. Chowdhury, A. A. and Koval, D. O. (2004), Current Practices and Customer Value-Based Distribution System Reliability Planning, Ieee Transactions On Industry Applications, Vol. 40, No. 5, pp. 1174-1182. https://doi.org/10.1109/TIA.2004.834075
  5. Crow, L. H. (1975), Reliability analysis for complex, repairable systems, Reliability and Biometry, Statistical Analysis of Life length, SIAM, Philadelphia, pp. 379-410.
  6. Crow, L. H. (2004), An extended reliability growth model for managing and assessing, Reliability and Maintainability Symposium.
  7. Crow, L. H. (2010), The Extended Continuous Evaluation Reliability Growth Model, Proceedings of the 2010 Annual RAMS Symposium, January San Jose, CA.
  8. Crow, L. H. (2015), Reliability Growth Planning Curves Based on Multi-Phase Projections, Reliability and Maintainability Symposium, January.
  9. Duane, J. T. (1964), Learning curve approach to reliability monitoring, IEEE Transactions on Aerospace, Vol. 2, pp. 563-566. https://doi.org/10.1109/TA.1964.4319640
  10. Hall, J. B. (2008), Methodology for Evaluating Reliability Growth Programs of Discrete Systems, Faculty of the Graduate School of the University of Maryland, College Park.
  11. Jeon, Y. R. and Bae D. S. (1999), Reliability Analysis, Arche Publishing.
  12. Jung, W., Kim, J. H., and Yoo, W. J. (2001), A Classification and Selection of Reliability-growth Models, Korean Society for Quality Management, Vol. 3, No. 1/11.
  13. Lee, H. W. (2003), A study on the MTBF for Repairable Systems with Application to Weibull Process, Thesis for a doctorate of the Graduate School in Seoul National University.
  14. MIL-HDBK-189C (2009), Reliability growth management. U.S Army Communications Research and Development Command, Fort Monmouth, NJ 07703.
  15. MIL-STD-1635 (EC) (1978), Reliability Growth Testing. U.S Army Communications Research and Development Command, Fort Monmouth, NJ 07703.
  16. So, Y. K., Jeon, Y. R., and Ryu, B. J. (2012), Reliabilitygrowth Management Process Improvement for Construction Equipment Development, Korean Reliability Society, Fall Conference.
  17. Yadav, O. P. and Singh, N. (2003), A Practical Approach to System Reliability Growth Modeling and Improvement, RAMS. Conference: Reliability and Maintainability Symposium, Annual.