Browse > Article

Reliability Analysis of Multi-State UH-60 Helicopter Hydraulic Pump System with a Multi-Functional Standby Component  

Kim, Dong-hyeon (Department of Information & Statistics, Chungnam National University)
Lee, Suk-hoon (Department of Information & Statistics, Chungnam National University)
Lim, Jae-Hak (Department of Business & Accounting, Hanbat National University)
Publication Information
Journal of Applied Reliability / v.15, no.4, 2015 , pp. 233-240 More about this Journal
Abstract
We analyse reliability of multi-state UH-60 helicopter hydraulic pump system with a multi-functional standby component using Markov analysis method. The system consists of seven components: 2 main pumps, 1 standby pump, 2 primary servos, and 2 tail rotor servos. The standby pump can take over when one more than components fail. Therefore the standby pump is multi-functional standby component. The system has four states: good, deteriorated, dangerous, and failed. The components have 2 states: working and failed. We assume the system is unrepairable when the components fail. We estimate failure distributions and rates using collected failure time data in field. And we classify multi-state of the system according to emergency procedure of UH-60A student handout. We obtain the reliabilities of multi-state system using Visual Basic program because the differential equations is extremely complicated and tedious to solve.
Keywords
Multi-Functional Standby Component; Multi-State; Markov Analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김동현․이석훈․임재학 (2015), 다기능 대기부품을 갖는 다중상태 병렬시스템의 신뢰도 분석, 한국산업정보학회, 제20권, 제4호, pp. 75-87.   DOI
2 110th Aviation Brigade (2008), UH-60A Student Handout (UH-60A Malfunction Analysis), Alabama, United States Army Aviation Warfighting Center.
3 Azaron, A., Katagiri, H., Kato, K., and Sakawa, M. (2006), Reliability Evaluation of Multi-Component Cold Standby Redundant Systems, Applied Mathematics and Computation, Vol. 173, No. 1, pp. 137-149.   DOI
4 Kras, A. and Svilicic, B. (2006), Predictive Reliability Analysis of Redundant Ship Navigational Radar System, Pomorstvo, god, Vol. 20, No. 2, pp. 119-126.
5 Lisnianski, A., Frenkel, I., and Ding, Y. (2010), Multi-State Systems Reliability Analysis and Optimization for Engineers and Industrial Managers, Springer, London.
6 Nelson, R. (2004), UH-60 Hydraulic System, Alabama, United States Army Aviation Warfighting Center.
7 Yoon, W. Y., Park, G. E., and Han, Y. J. (2012), Simulation Based Design of Reliability and Maintainability for a Multi-Functional Complex System, Proceedings of 24th Cyber Conference B10-Special Issue, Defense OR2, Korean Operations Research and Management Science Society, pp. 1005-1012.