훈련기 고장 다빈도 품목의 체계 영향성 분석 연구

Abstract

Purpose: An improved target operational availability is required to maintain the combat readiness of a trainer plane. This study investigates the improvements in the failure rate of the trainer plane and its effect on the reliability, availability, and maintenance cost. Methods: The flight control system has an improved failure rate with a higher mean time between failure (MTBF) value. It is necessary to improve the failure rates of other subsystems, to meet the target operational availability. Results: The results improved the failure rate of items with frequent failures to meet the target operational availability of the trainer. Specifically, the operational availability and MTBF were improved by 8.6% and 194.4%, respectively. However, the propsed methed can reduce failure rates and operating maintenance costs by 45.3% and 34.3%, respectively. Conclusion: As a method of improving the target operational availability required for maintaining the combat readiness of the trainer, the impact on the reliability, availability, and operation maintenance cost of the trainer was analyzed when improving the failure rate of items with frequent failures.