基于维修事件信息的船闸可靠性分析

为挖掘维修信息中隐含的工程系统健康规律,构建并验证了基于维修事件数据的船闸寿命周期可靠性分析模型。以工程系统结构分解为技术支撑,集成船闸运行阶段的维修事件信息,依据复杂系统可靠性理论,用维修间隔时间来界定船闸寿命周期可靠性,定义大修间隔时间、中修间隔时间、故障维修时间和故障次数等作为船闸系统可靠性参数。借鉴制造业产品研制阶段可靠性分析的思路和方法,提出了基于维修事件数据的船闸系统可靠性分析模型,并采用京杭运河苏北段17座船闸的历史维修数据验证了模型的科学性。

Waterway lock reliability analysis based on maintenance event information

In order to explore the health patterns of engineering systems from the point of view of maintenance information, a life cycle reliability analysis model for waterway locks was developed and verified based on maintenance event data. With the engineering system breakdown structure used for technical support and in combination with maintenance event information during the waterway lock life process, the maintenance interval was used to measure the system life cycle reliability by means of the complex system reliability theory. The overhaul interval, medium maintenance interval, breakdown repair time, and failure frequency were defined as waterway lock reliability parameters. Referring to the ideas of reliability analysis in the product development stage in the manufacturing industry, a reliability analysis model for waterway locks was proposed based on maintenance event data, and its practicability was examined using historical maintenance records of 17 waterway locks on the Grand Canal in the north of Jiangsu Province of China.