综合监控系统已日渐成为城市轨道交通自动化系统中的一种基本系统。为了保证综合监控系统可靠安全地工作,可靠性、可用性、可维修性、安全性(Reliability、Availability、Maintainability and Safety,简为RAMS)管理规范已逐渐被应用到...综合监控系统已日渐成为城市轨道交通自动化系统中的一种基本系统。为了保证综合监控系统可靠安全地工作,可靠性、可用性、可维修性、安全性(Reliability、Availability、Maintainability and Safety,简为RAMS)管理规范已逐渐被应用到城市轨道交通的自动化控制领域中。介绍了城市轨道交通综合监控系统的RAMS管理方法,详细分析了综合监控系统项目的RAMS组织结构、RAM分析方法、危害性分析方法及故障报告、分析和纠正措施系统等内容。指出在实际的综合监控系统项目中,需根据项目的具体特点,在RAMS规范的指导下开展有效的工作,才能真正提高项目的RAMS水平。展开更多
The Regional Atmospheric Modeling System （RAMS） and the computational fluid dynamics （CFD） codes known as FLUENT are combinatorially applied in a multi-scale numerical simulation of the urban surface layer （USL）...The Regional Atmospheric Modeling System （RAMS） and the computational fluid dynamics （CFD） codes known as FLUENT are combinatorially applied in a multi-scale numerical simulation of the urban surface layer （USL）. RAMS and FLUENT are combined as a multi-scale numerical modeling system, in which the RAMS simulated data are delivered to the computational model for FLUENT simulation in an offline way. Numerical simulations are performed to present and preliminarily validate the capability of the multi-scale modeling system, and the results show that the modeling system can reasonably provide information on the meteorological elements in an urban area from the urban scale to the city-block scale, especially the details of the turbulent flows within the USL.展开更多
文摘综合监控系统已日渐成为城市轨道交通自动化系统中的一种基本系统。为了保证综合监控系统可靠安全地工作,可靠性、可用性、可维修性、安全性(Reliability、Availability、Maintainability and Safety,简为RAMS)管理规范已逐渐被应用到城市轨道交通的自动化控制领域中。介绍了城市轨道交通综合监控系统的RAMS管理方法,详细分析了综合监控系统项目的RAMS组织结构、RAM分析方法、危害性分析方法及故障报告、分析和纠正措施系统等内容。指出在实际的综合监控系统项目中,需根据项目的具体特点,在RAMS规范的指导下开展有效的工作,才能真正提高项目的RAMS水平。
基金This study was supported by the National Natural Science Foundation of China （Grant Nos. 40233030, 40405004, 40405014）.
文摘The Regional Atmospheric Modeling System （RAMS） and the computational fluid dynamics （CFD） codes known as FLUENT are combinatorially applied in a multi-scale numerical simulation of the urban surface layer （USL）. RAMS and FLUENT are combined as a multi-scale numerical modeling system, in which the RAMS simulated data are delivered to the computational model for FLUENT simulation in an offline way. Numerical simulations are performed to present and preliminarily validate the capability of the multi-scale modeling system, and the results show that the modeling system can reasonably provide information on the meteorological elements in an urban area from the urban scale to the city-block scale, especially the details of the turbulent flows within the USL.
