摘要
给出了点检定修策略的技术内涵以及适用性准则。针对目前发电设备点检周期决策缺乏理论支持、只能依据经验进行判定的现状,基于延迟时间模型理论,以设备潜在故障状态以及P-F间隔为出发点,建立了单部件系统点检周期决策的费用模型及风险模型。考虑不同故障模式导致的后果和企业的风险偏好,以平均单位时间检修费用最小化为目标,建立了点检周期决策费用模型;以功能故障发生的风险小于可接受水平为目标,建立了点检周期决策风险模型。所建立的模型适用于单部件系统精密点检以及解体点检周期的决策问题。给出了实际应用算例,证明了点检周期决策模型的有效性。
The connotation and applicability rules of the spot checking and regular repair strategy were given. At present the spot checking interval decision making in power plant mainly depends on the experiences, not the theory or models to support the decision making. Based on the principle of Delay Time Model, with the potential failure state and P-F interval, the cost model and risk model of spot checking interval decision making were established. Considering the different results caused by different failure modes and different risk preferences of enterprises, the spot checking interval cost model was built to minimize the unit cost; the spot checking interval risk model was built to minimize the risk of failure. The illustrational example for these two models was provided to show the effectiveness.
出处
《中国电力》
CSCD
北大核心
2007年第11期67-71,共5页
Electric Power
基金
教育部新世纪优秀人才支持计划项目(NCET-05-0097)
关键词
点检定修制
延迟时间模型
以可靠性为中心的维修
点检周期决策
spot checking and regular repair
delay time model
Reliability Centered Maintenance
spot checking interval decision making
