为了提高船舶在航运市场低迷情况下的竞争力和给船东带来更高的利益,提出在船舶上安装智能船舶运行与维护系统(Smart-vessel Operation and Maintenance System,SOMS)。该系统根据船舶的实际配置情况,通过采集船舶数据信息、软件自身专...为了提高船舶在航运市场低迷情况下的竞争力和给船东带来更高的利益,提出在船舶上安装智能船舶运行与维护系统(Smart-vessel Operation and Maintenance System,SOMS)。该系统根据船舶的实际配置情况,通过采集船舶数据信息、软件自身专业分析模型,对船舶能效、航行规划和重要设备维保等提供决策支持,其基本功能涵盖智能集成信息平台、船舶能效管理、SOMS健康管理系统。该系统可以帮助船东降低运营成本、提高船舶能效,对未来智能船舶节能降耗这一领域的发展具有一定的参考价值和借鉴意义。展开更多
This paper aims to propose a modeling framework for subway operation and maintenance system (SOMS), which analyzes the train condition data based on both train sensor network data and basis train maintenance plan. The...This paper aims to propose a modeling framework for subway operation and maintenance system (SOMS), which analyzes the train condition data based on both train sensor network data and basis train maintenance plan. The system is formulated into five function modules, and the research problem is to determine one auxiliary maintains plan, including the time allocation and frequency of maintenance. The case of Guangzhou metro is conducted to illustrate the applicability of SOMS, and the results reveal a number of interesting insights into subway maintenance system, i.e., the worksheet can reduce duplication of redundant maintenance work, the repair cost, and the damage caused by frequent disassembly.展开更多
To solve the fault diagnosis problem of liquid propellant rocket engine ground testing bed,a fault diagnosis approach based on self-organizing map(SOM)is proposed.The SOM projects the multidimensional ground testing b...To solve the fault diagnosis problem of liquid propellant rocket engine ground testing bed,a fault diagnosis approach based on self-organizing map(SOM)is proposed.The SOM projects the multidimensional ground testing bed data into a two-dimensional map.Visualization of the SOM is used to cluster the ground testing bed data.The out map of the SOM is divided to several regions.Each region is represented for one fault mode.The fault mode of testing data is determined according to the region of their labels belonged to.The method is evaluated using the testing data of a liquid-propellant rocket engine ground testing bed with sixteen fault states.The results show that it is a reliable and effective method for fault diagnosis with good visualization property.展开更多
文摘为了提高船舶在航运市场低迷情况下的竞争力和给船东带来更高的利益,提出在船舶上安装智能船舶运行与维护系统(Smart-vessel Operation and Maintenance System,SOMS)。该系统根据船舶的实际配置情况,通过采集船舶数据信息、软件自身专业分析模型,对船舶能效、航行规划和重要设备维保等提供决策支持,其基本功能涵盖智能集成信息平台、船舶能效管理、SOMS健康管理系统。该系统可以帮助船东降低运营成本、提高船舶能效,对未来智能船舶节能降耗这一领域的发展具有一定的参考价值和借鉴意义。
文摘This paper aims to propose a modeling framework for subway operation and maintenance system (SOMS), which analyzes the train condition data based on both train sensor network data and basis train maintenance plan. The system is formulated into five function modules, and the research problem is to determine one auxiliary maintains plan, including the time allocation and frequency of maintenance. The case of Guangzhou metro is conducted to illustrate the applicability of SOMS, and the results reveal a number of interesting insights into subway maintenance system, i.e., the worksheet can reduce duplication of redundant maintenance work, the repair cost, and the damage caused by frequent disassembly.
基金Sponsored by the National Natural Science Foundation of China(Grant No. NSFC-60572010)
文摘To solve the fault diagnosis problem of liquid propellant rocket engine ground testing bed,a fault diagnosis approach based on self-organizing map(SOM)is proposed.The SOM projects the multidimensional ground testing bed data into a two-dimensional map.Visualization of the SOM is used to cluster the ground testing bed data.The out map of the SOM is divided to several regions.Each region is represented for one fault mode.The fault mode of testing data is determined according to the region of their labels belonged to.The method is evaluated using the testing data of a liquid-propellant rocket engine ground testing bed with sixteen fault states.The results show that it is a reliable and effective method for fault diagnosis with good visualization property.
