中文摘要：

为了保证引擎生活的安全，根据适航性规定限制了部分( ELLP )，集成单程的液体结构相互作用( FSI )的一条数字途径和概率的风险评价( PRA )被开发，由哪个在煤气的汽轮机磁盘的安全上的一个转子定子洞的流动参数的变化被调查。自从他们能改变应力的分发和磁盘的温度，结果显示流动参数影响一个煤气的汽轮机磁盘的骨折的概率。磁盘的失败概率与增加旋转雷纳兹数字和 Chebyshev 数字升起，但是与增加入口雷纳兹数字下降。另外，采样与有限差别方法基于敏感分析被进行关于流动参数决定安全的敏感。敏感估计证明旋转雷纳兹数字是在在流动参数之中的一个转子定子洞的安全分析的主导的变量。

英文摘要：

In order to ensure the safety of engine life limited parts （ELLP） according to airworthiness regulations, a numerical approach integrating one-way fluid structure interaction （FSI） and probabilistic risk assessment （PRA） is developed, by which the variation of flow parameters in a rotor-stator cavity on the safety of gas turbine disks is investigated. The results indicate that the flow parameters affect the probability of fracture of a gas turbine disk since they can change the distribution of stress and temperature of the disk. The failure probability of the disk rises with increasing rotation Reynolds number and Chebyshev number, but descends with increasing inlet Reynolds number. In addition, a sampling based sensitivity analysis with finite difference method is conducted to determine the sensitivities of the safety with respect to the flow parameters. The sensitivity estimates show that the rotation Reynolds number is the dominant variable in safety analysis of a rotor-stator cavity among the flow parameters.