报告题目:Optimization Problems in Circular k out of n: G Balanced Systems
报告人：Won Young Yun （韩国釜山国立大学）
This talk considers optimization problems in circular k out of n: G balanced system. The system works if there are at least k units working and it is balanced. Balance conditions are reviewed. The system reliability is obtained for given balanced condition. The maintenance optimization problem is studied to minimize the expected cost rate. We consider economic design and age maintenance problems and some numerical examples are studied to investigate the effects of cost and model parameters to reliability and maintenance activity. As extended models, we also consider a load sharing model in circular k out of n: G balanced systems. Finally, some promising further research topics are introduced.
Key words: circular k out of n: balanced systems, balance conditions, system reliability, expected cost rate, age replacement, load sharing model
Won Young Yun is a Professor in Department of Industrial Engineering, Pusan National University, Korea. He received his B.S. degree in Industrial Engineering from Seoul National University, Korea, in 1982 and his M.S. and Ph. D. degrees in Industrial Engineering from KAIST, Korea, in 1984 and 1988, respectively. His research interest includes maintenance optimization of complex systems, spare-parts problems and simulation applications in reliability and maintenance. He has published his papers in international journals of reliability and operations research, for example, IEEE Transactions on Reliability, Reliability and System Safety, IIE Transactions, International Journal of Production Economics, etc.