两种不同结构可修的ATP系统可靠性分析和比较

RELIABILITY ANALYSIS AND COMPARISON OF TWO DIF-FERENT STRUCTURAL REPAIRABLE ATP SYSTEMS

本文分析了两种不同结构可修的ＡＴＰ（ＡｕｔｏｍａｔｌｃＴｒａｌｎＰｒｏｔｅｃｔｌｏｎ）系统的可靠性。通过利用概率论和可靠性数学的方法，我们求得了这两种不同结构的可修的ＡＴＰ系统的可靠度、瞬时可用度、稳态可用度及系统平均无故障时间。并在同样假设条件下，如对修理的要求和各子系统的失效率一样等，比较了这两种不同结构的可修的ＡＴＰ系统的可靠性指标。

This paper analyzes the reliability of two different structural rapairable ATP(Au-tomatic Train Protection)systems. By using the theory of probability and reliability,the authors obtain some interesting measures,such as reliability,instantaneous availability,steadvavailability, mean time between failures,etc. for the two different structural ATPsvstemes.In addition,under the same assumptions,for example,assuming that there aresame repair and failure rates to the subsystems,the authors compare these measures of thetwo different ATP svstems.