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Journal of Korean Society for Quality Management 1995;23(2): 43-. |
교체전 최소수리회수의 결정에 관한 연구 |
서용성1, 박영택1, 손은일2 |
1성균관대학교 산업공학과 2진주전문대학 공업경영과 |
A Generalized Model for Determining Optimal Number of Minimal Repairs before Replacement |
Yong-Sung Suh1, Young-Taek Park1, Eun-il Son2 |
1Dept. of Industrial Engineering, Sungkyunkwan University 2Dept. of Industrial Engineering, Chinju Technical College |
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ABSTRACT |
A replacement policy under two types of failures, repairable or irrepairable, is considered, In the policy, the system is replaced at the n-th failure if all the previous (n-1) failures are repairable; Otherwise it is replaced at the first irrepairable failure. Assuming that the j-th failure is repairable with probability ${alpha}_j$ and minimal repairs are performed for repairable failures between replacements, we derive the expected cost rate through the application of NHPP in order to determine the optimal number $n^*$. The policy includes some previous studies as special cases. |
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