| 离散Weibull分布下系统瞬时可用度的波动分析 |
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| 引用本文： | 王立超,杨懿,于永利,邹云.离散Weibull分布下系统瞬时可用度的波动分析[J].系统工程学报,2010,25(2). |
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| 作者姓名： | 王立超 杨懿 于永利 邹云 |
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| 作者单位： | 1. 南京理工大学自动化学院,江苏,南京,210094
2. 军械工程学院维修工程研究所,河北,石家庄,050003 |
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| 摘 要： | 对Weibull分布条件下离散时间的单部件可修系统的瞬时可用度模型进行了研究,提出了刻画系统瞬时可用度波动特征的波动参数.在此基础上,分别对固定系统寿命分布和平均修复时间条件下以及固定修复时间分布和平均故障间隔时间条件下的波动参数变化情况进行了仿真,研究了系统瞬时可用度的波动参数与weibull分布的形状参数和尺度参数之间的关系,并从仿真结果中得到了特定条件下系统可用度波动参数的变化规律.
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| 关 键 词： | 瞬时可用度 平均故障间隔时间 平均修复时间 可修系统 |
Undulation analysis of instantaneous availability under discrete Weibull distributions |
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| WANG Li-chao,YANG Yi,YU Yong-li,ZOU Yun.Undulation analysis of instantaneous availability under discrete Weibull distributions[J].Journal of Systems Engineering,2010,25(2). |
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| Authors: | WANG Li-chao YANG Yi YU Yong-li ZOU Yun |
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| Institution: | WANG Li-chao1,YANG Yi1,YU Yong-li2,ZOU Yun1(1.School of Automation,Nanjing University of Science , Technology,Nanjing 210094,China,2.Maintenance Engineering Institute,Ordnance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | The instantaneous availability of the discrete-time one-unit repairable system under Weibull distribution is studied.Firstly,some parameters are presented to characterize the undulation of the instantaneous availability.Then,two kinds of numerical simulations are carried out: one for the systems with fixed life distribution and mean time to repair(MTTR),and the other for the systems with fixed repair time distribution and mean time between failures(MTBF).Finally,the relationship between the undulation param... |
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| Keywords: | instantaneous availability mean time between failures mean time to repair repairable system |
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