本文繼Ramanarayana [8]之後,先就2-out-of-n:F 系統針對修理人員1名之 情形以另一方式分析此系統的定常可用度A(∞)(stationary Availability)[7][11] 繼之仍就上述相同系統對修理人員2名之情形進行分析此系統的定常可用度,最後就 此系統在兩種不同之修理情況下比較其可用度。 對於本文所提供的系統模式,為了實証其有用性,本文假設時間壽命分配為指 數分配,修理時間分配則分別為一定分配,Elrang 分配(E??)、指數分配進行分析 。在分析中吾人發現系統的可用度隨著修理時間分配為一定分配(Kronecker's Distribution),Elrang分配(E??) 、指數分配順次減少。 Firstly, We treated the stationary availability of 2-out-of-n:F system with one repairman. Secondly, the availability of the same system with two repair men is treated. To compare these models, we assume that the distribution of lidetime is exponential and the repaintime is general. Furthermore we assume that the general distributions are Kronecker, Elrang(E ?? ) and expontenial respectively. From the analysis, we found that the availability is decreasing as the repairtime will be Kronecker, Elrang(E ?? ) and expontential in sequence.