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Concept and evaluation method of equipment system of systems contribution rate 被引量:1
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作者 Zhang Tianpeng Liu Tielin Yang Jun 《Journal of Southeast University(English Edition)》 EI CAS 2021年第3期317-324,共8页
To scientifically evaluate the equipment system of systems(SoS)contribution rate,a contribution rate calculation method based on a structural equation model(SEM)is proposed in this paper.The connotation and evaluation... To scientifically evaluate the equipment system of systems(SoS)contribution rate,a contribution rate calculation method based on a structural equation model(SEM)is proposed in this paper.The connotation and evaluation process of the equipment SoS contribution rate were redefined and standardized.To solve the existing problems in the application of the original contribution rate formula,a modified contribution rate calculation formula is proposed.Finally,the contribution rate evaluation index was divided into latent and explicit variables.The measurement and structural equations in the SEM were used to calculate and analyze the latent variables.The simulation results show that the number of defense lines of air defense weapon equipment has a greater impact on the linear configuration than the group configuration.When the number of K-type air defense weapons is sufficient,the two-layer linear configuration should be adopted with 20 air defense weapon systems.When the number of K-type air defense weapons is insufficient,the single-layer group configuration should be adopted with 12 air defense weapon systems. 展开更多
关键词 system of systems(SoS)contribution rate structural equation mode equipment SoS capability assessment evaluation indicator framework
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Intelligent Examination Monitoring and Maintenance for the Safety of Operation of Flexible Manufacturing Systems
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作者 张建民 李世健 郝娟 《Journal of Beijing Institute of Technology》 EI CAS 2001年第2期163-168,共6页
Based on the system of electric power supply for flexible manufacturing systems (FMS), a study has been carried out on the intelligent safety examination, monitoring and maintenance of its running environment. On the ... Based on the system of electric power supply for flexible manufacturing systems (FMS), a study has been carried out on the intelligent safety examination, monitoring and maintenance of its running environment. On the basis of the specific feature of the power supply network of an FMS, real time monitoring system of the power supply network and the fault diagnostic expert system for the power equipment have been designed. This system can diagnose not only definite fault phenomena, but also fuzzy, uncertain fault phenomena as well. Fault diagnostic knowledge base for the power equipment has been founded hierarchy architecture model and the method of fault tree analysis. Feasibility of this system has been proved by computer simulation. 展开更多
关键词 flexible manufacturing systems power supply network power equipment real time monitoring fault diagnosis expert system
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The Challenges Posed by Autonomous Weapon Systems to Human Rights and Humanitarian Concerns and Relevant Legal Responses
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作者 张韵涵 XU Chao 《The Journal of Human Rights》 2023年第3期639-657,共19页
By 2050,autonomous weapon systems may potentially replace humans as the main force on the battlefield,as per predictions.The development of autonomous weapon systems poses risks to human rights and humanitarian concer... By 2050,autonomous weapon systems may potentially replace humans as the main force on the battlefield,as per predictions.The development of autonomous weapon systems poses risks to human rights and humanitarian concerns and raises questions about how international law should regulate new technologies.From the perspectives of international human rights law and international humanitarian law,autonomous weapon systems present serious challenges in terms of invasiveness,indiscriminate killing,cruelty,and loss of control,which impact human rights and humanitarian principles.Against the backdrop of increased attention to the protection of human rights in China,it is necessary to clarify the existing regulatory framework and fundamental stance regarding autonomous weapon systems and proactively consider and propose countermeasures to address the risks associated with such systems.This will help prevent human rights and humanitarian violations and advance the timely resolution of this issue,which affects the future and destiny of humanity,ultimately achieving the noble goal of universal enjoyment of human rights. 展开更多
关键词 autonomous weapon systems international humanitarian law international human rights law HUMANITARIAN
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Weapons system portfolio selection based on the contribution rate evaluation of system of systems 被引量:11
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作者 DOU Yajie ZHOU Zhexuan +1 位作者 ZHAO Danling WEI Yong 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2019年第5期905-919,共15页
The weapons system portfolio selection problem arises at the equipment demonstration stage and deals with the military application requirements.Further,the contribution rate of the system is one of the important indic... The weapons system portfolio selection problem arises at the equipment demonstration stage and deals with the military application requirements.Further,the contribution rate of the system is one of the important indicators to evaluate the role of a system,which can facilitate the weapons system portfolio selection.Therefore,combining the system contribution rate with system portfolio selection is the focus of this study.It also focuses on calculating the contribution rates of multiple equipment systems with various types of capabilities.The contribution rate is measured by establishing a hierarchical multi-criteria value model from three dimensions.Based on the value model,the feasible portfolios are developed under certain cost constraints and the optimal weapons system portfolios are obtained by using the classification optimization selection strategy.Finally,an illustrative example is presented to verify the feasibility of the proposed model. 展开更多
关键词 WEAPON system system of systems (SoS) portfolioselection CONTRIBUTION rate EVALUATION DECISION analysis
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Development of a Framework for Equipment Health Management in the Mining Industries in Zambia
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作者 Tobias Njobvu Terence Malama 《World Journal of Engineering and Technology》 2024年第3期665-694,共30页
The Zambian mining industry is crucial to the national economy but struggles with inconsistent equipment maintenance practices. This study developed an Equipment Maintenance Management Framework (EMMF) tailored to the... The Zambian mining industry is crucial to the national economy but struggles with inconsistent equipment maintenance practices. This study developed an Equipment Maintenance Management Framework (EMMF) tailored to the industry’s needs. Using surveys, interviews, and on-site visits at eight major mining companies, we identified significant variations in maintenance strategies, CMMS usage, and reliability engineering. The EMMF prioritizes predictive maintenance, efficient CMMS implementation, ongoing training, and robust reliability engineering to shift from reactive to proactive maintenance. We recommend adopting continuous improvement practices and data-driven decision-making based on performance metrics, with a phased EMMF implementation aligning maintenance with strategic business objectives. This framework is poised to enhance operational efficiency, equipment reliability, and safety, fostering sustainable growth in the Zambian mining sector. 展开更多
关键词 equipment Maintenance Management Framework (EMMF) Computerized Maintenance Management system (CMMS) Preventive Maintenance Predictive Maintenance Data Analytics
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Test of Generating Function and Estimation of Equivalent Radius in Some Weapon Systems and Its Stochastic Simulation
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作者 Famei Zheng 《Applied Mathematics》 2011年第12期1546-1550,共5页
We discuss three-dimensional uniform distribution and its property in a sphere;give a method of assessing the tactical and technical indices of cartridge ejection uniformity in some type of weapon systems. Meanwhile w... We discuss three-dimensional uniform distribution and its property in a sphere;give a method of assessing the tactical and technical indices of cartridge ejection uniformity in some type of weapon systems. Meanwhile we obtain the test of generating function and the estimation of equivalent radius. The uniformity of distribution is tested and verified with ω2 test method on the basis of stochastic simulation example. 展开更多
关键词 UNIFORM Distribution in a SPHERE WEAPON systems GENERATING Function EQUIVALENT RADIUS Stochastic Simulation
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Analysis and Design of University Teaching Equipment Management Information System
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作者 Yu Xue Xiang Jiao +2 位作者 Chishe Wang Huanlun Chen Moayad Aloqaily 《Journal of Cyber Security》 2021年第3期177-185,共9页
Teaching equipment management is an important factor for colleges and universities to improve their teaching level,and its management level directly affects the service life and efficiency of teaching equipment.But in... Teaching equipment management is an important factor for colleges and universities to improve their teaching level,and its management level directly affects the service life and efficiency of teaching equipment.But in recent years,our university recruitment of students scale is increasing year by year,the size of the corresponding teaching equipment is also growing,therefore to develop a teaching equipment management information system is necessary,not only can help universities to effective use of the existing teaching resources,also can update scrap equipment,related equipment maintenance,and build a good learning environment to students and to the improvement of the teaching quality of colleges and universities play a reliable safeguard role.This paper first introduces some common development tools,and then analyzes the user functional requirements and data requirements of the system,and analyzes the feasibility of the system development from many aspects,finally based on B/S mode,using Java language,JSP technology and MySQL database design and implementation of a teaching equipment management information system.The main functional modules of the system include equipment basic information management,equipment loan and return information management,equipment maintenance information management,equipment scrap information management,the interface of each functional module is shown in the paper. 展开更多
关键词 Information systems teaching equipment management system analysis
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EXPLORATION ON THE DEVELOPMENT OF COMPUTER AIDED EQUIPMENT MAINTENANCE MANAGEMENT SYSTEMS
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作者 Bu, Yingyong Zhang, Huailiang 《中国有色金属学会会刊:英文版》 EI CSCD 1995年第4期158-167,共10页
EXPLORATIONONTHEDEVELOPMENTOFCOMPUTERAIDEDEQUIPMENTMAINTENANCEMANAGEMENTSYSTEMSBuYingyong;ZhangHuailiang(Dep... EXPLORATIONONTHEDEVELOPMENTOFCOMPUTERAIDEDEQUIPMENTMAINTENANCEMANAGEMENTSYSTEMSBuYingyong;ZhangHuailiang(DepartmentofMechanic... 展开更多
关键词 COMPUTER-AIDED equipment maintenance MANAGEMENT system
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Experimental Evaluation of Fixing Equipment for Improving the Efficiency of Modular Unit Systems
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作者 Kyoon-Tai Kim Nam-Cheon Park 《Journal of Building Construction and Planning Research》 2014年第4期244-254,共11页
Modular unit systems provide an eco-friendly advanced construction method that improves productivity and reduces carbon emissions and construction waste. In these systems, the prefabrication ratio of the modules shoul... Modular unit systems provide an eco-friendly advanced construction method that improves productivity and reduces carbon emissions and construction waste. In these systems, the prefabrication ratio of the modules should be high in order to support these eco-friendly features. The purpose of this study was to verify the functionality and driving safety of fixing a modular unit with a high prefabrication ratio to a vehicle for transportation to the site using two novel adapter blocks specially developed for this purpose. When asked to evaluate their performance for this study, the truck drivers selected adaptor block type B as providing the highest convenience and functionality. In real-world driving experiments, maximum loads of 15 kN and 25 kN were measured on adapter block types A and B, respectively. Future improvements in the adapter blocks that take the safety ratio and the improved convenience of use into account are confidently expected to contribute to the eco-friendliness and the improved productivity of modular unit systems. 展开更多
关键词 COMPONENT MODULAR HOUSING MODULAR Unit MODULAR system FIXING equipment Evaluation
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Design and Application of a Reconstruction System for Engineering Equipment Fault Diagnosis
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作者 LI Jie WANG Jian +1 位作者 ZHANG Zhi DAI Ling 《International Journal of Plant Engineering and Management》 2009年第3期136-141,共6页
It is difficult to develop the corresponding fault diagnosis system and the software reusability is bad because the engineering equipment types are so many and their performance is diverse. This paper discussed the so... It is difficult to develop the corresponding fault diagnosis system and the software reusability is bad because the engineering equipment types are so many and their performance is diverse. This paper discussed the solution to engineering equipment integrated fault diagnosis system based on component technology, put forward the sys- tem model and gave the system frame design process and working principle. The software was designed based on the three-layer hierarchy. It is easy to rease and maintain, and the operation of the software is simple. A kind of new theory and method to develop the engineering equipment fault diagnosis system for the future was provided. 展开更多
关键词 engineering equipment component technology fault diagnosis system reconstruction
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Design and Application of an Expert System for Equipment Maintenance and Forecast
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作者 WANG Jian PAN Kai-long +1 位作者 SHEN Yun-feng LI Jie 《International Journal of Plant Engineering and Management》 2007年第1期49-54,共6页
The maintenance and forecast expert system of equipment based on Artificial Neural Network is composed of control, measure, failure forecast, execution, data processing module and database. The data processing module ... The maintenance and forecast expert system of equipment based on Artificial Neural Network is composed of control, measure, failure forecast, execution, data processing module and database. The data processing module obtains the change of the controlled objects' structure and parameters, then takes correspondent measures according to the examination and diagnosis information. The failure forecast module finds the control system fault, separates the fault symptom location, tells the fault kind, estimates the magnitude and time of the fault, and finally makes evaluation and decision. 展开更多
关键词 equipment forecast maintenance artificial neural network (ANN) expert system
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Integrated Grease-pouring System Design and Reliability Assessment of Engineering Equipment
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作者 ZHANG Xing WANG Jian +1 位作者 DAI Ling YANG Cheng-xian 《International Journal of Plant Engineering and Management》 2008年第2期101-107,共7页
Because of poor lubrication, the abrasion of the engineering equipment's key connection position (the hinge joint and so on) has become the major factor that affects the mechanical benefit. The excavator WY60 is ta... Because of poor lubrication, the abrasion of the engineering equipment's key connection position (the hinge joint and so on) has become the major factor that affects the mechanical benefit. The excavator WY60 is taken as an example in this paper. The automatic grease-pouring, the working state test, and the alarm for fault of every lubricating point on the machine is accomplished by the control sub-system, the lubricating system and other correlated components. The principle and functions of the system are described. The work condition is analyzed. Finally, we present the plan of the software and the hardware of the system, and set up the fuzzy assessment model of reliability of the system. 展开更多
关键词 engineering equipment grease-pouring system fuzzy assessment reliability assessment
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基于Profinet与S7‑1200 PLC的RN254型铁钻工电控系统的研发与应用
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作者 刘晓林 王林清 +1 位作者 许本冲 刘凡柏 《钻探工程》 2024年第S01期231-237,共7页
RN254型铁钻工是勘探技术所自主研发的井口自动化拧卸设备,可在3.5~10 in范围内安全、快速、平稳地实现钻具连接、上卸扣操作。基于对一般钻井井台自动化设备集成应用和功能需求特点分析,以井台设备模块化、集成化为设计思想,结合RN254... RN254型铁钻工是勘探技术所自主研发的井口自动化拧卸设备,可在3.5~10 in范围内安全、快速、平稳地实现钻具连接、上卸扣操作。基于对一般钻井井台自动化设备集成应用和功能需求特点分析,以井台设备模块化、集成化为设计思想,结合RN254型铁钻工的作业工况、机械结构及液压系统,设计了RN254型铁钻工电控系统。该系统以S7-1200PLC为控制核心、Profinet为通讯方式,将铁钻工所有元件有序地整合到一起,实现了动作单步控制或多个动作顺序组合的一键自动控制。经野外实际生产试验及厂内联合调试,RN254型铁钻工各动作执行良好,主机控制稳定有序,验证了电控系统的可行性及可靠性,提高了孔口作业自动化程度和作业安全性,为后续钻井智能化装备研发提供了参考。 展开更多
关键词 PRofINET S7-1200 PLC 铁钻工 电控系统 自动化拧卸设备
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Weapons equipment portfolios selection based on equipment system contribution rates 被引量:5
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作者 LIU Peng LI Jichao +2 位作者 XIA Boyuan ZHAO Danling TAN Yuejin 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2021年第3期584-595,共12页
Equipment selection is an essential work in the research and development planning of equipment.The scientific and rational development of weapons equipment portfolios is of considerable significance to the optimizatio... Equipment selection is an essential work in the research and development planning of equipment.The scientific and rational development of weapons equipment portfolios is of considerable significance to the optimization of equipment architecture design,the adequate resources allocation,and the joint combat performance.From the system view,this paper proposes a method of weapons equipment portfolios selection(WEPS)based on the contribution rate of weapon systems,providing a new idea for weapon equipment portfolio selection.Firstly,we analyze the WEPS problem and the concept of the contribution rate under the systems background.Secondly,we propose a combat network modeling method for weapon equipment systems based on the function chain.Thirdly,we propose a WEPS method based on the contribution rate,fully considering the correlation relationships between potential weapons and the old weapon systems by the combat network model,under the limitation of capability demands and budget resources,with the objective to maximally increasing the combat ability of weapon systems.Finally,we make a case study with a specific WEPS problem where the whole calculation processes and results are analyzed and exhibited to verify the feasibility and effectiveness of the proposed method model. 展开更多
关键词 weapons equipment system systems contribution rate equipment portfolio selection combat capability combat network
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Visualization analysis of the capability of weapon system of systems for multi-dimensional indicators 被引量:1
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作者 Jianfei Ding Guangya Si +2 位作者 Guoqiang Yang Yang Liu Xiao Liu 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2017年第2期292-300,共9页
In the field of weapon system of systems (WSOS) simulation, various indicators are widely used to describe the capability of WSOS, but it is always difficult to describe the comprehensive capability of WSOS quickly an... In the field of weapon system of systems (WSOS) simulation, various indicators are widely used to describe the capability of WSOS, but it is always difficult to describe the comprehensive capability of WSOS quickly and intuitively by visualization of multi-dimensional indicators. A method of machine learning and visualization is proposed, which can display and analyze the capabilities of different WSOS in a two-dimensional plane. The analysis and comparison of the comprehensive capability of different components of WSOS is realized by the method, which consists of six parts: multiple simulations, key indicators mining, three spatial distance calculation, fusion project calculation, calculation of individual capability density, and calculation of multiple capability ranges overlay. Binding a simulation experiment, the collaborative analysis of six indicators and 100 possible kinds of red WSOS are achieved. The experimental results show that this method can effectively improve the quality and speed of capabilities analysis, reveal a large number of potential information, and provide a visual support for the qualitative and quantitative analysis model. 展开更多
关键词 weapon system of systems (WSOS) comprehensive capability visualization of multi-dimensional indicators machine learning
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On the Trends of Autonomous Unmanned Systems Research 被引量:1
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作者 Ben M.Chen 《Engineering》 SCIE EI CAS 2022年第5期20-23,共4页
In recent decades,academia and industry have put increasing attention and investment into the research and development of autonomous unmanned systems.An autonomous unmanned vehi-cle is a machine equipped with necessar... In recent decades,academia and industry have put increasing attention and investment into the research and development of autonomous unmanned systems.An autonomous unmanned vehi-cle is a machine equipped with necessary data-processing units,sophisticated sensors,environment perception,automatic control,motion planning,task planning,mission management,and com-munication systems. 展开更多
关键词 AUTONOMOUS systems equipped
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The Development of a Knowledgeable Monitoring System for Weapon Equipment 被引量:1
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作者 Yan Shenggang, Yang Daoqing, Zhao SongzhengNorthwestern Polytechnical UniversityXi’an, 710072, Shaanxi, P.R.China 《International Journal of Plant Engineering and Management》 1998年第1期18-23,共6页
In order to make the combat effectiveness of weapon yield well, it is necessary to maintain and monitor the weapons. Based on the requirement of weapon equipment, an integrated maintaining system is developed, which c... In order to make the combat effectiveness of weapon yield well, it is necessary to maintain and monitor the weapons. Based on the requirement of weapon equipment, an integrated maintaining system is developed, which can be used to carry out the maintenance by using electricity periodically and function detection at module level. So, the breakdown rate of product component is deceased a lot, product reliability is improved, and the life cycle is prolonged. Thus, combat effectiveness of weapon equipment is improved. 展开更多
关键词 equipment WEAPON weapon equipment maintenance and detection POWER
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Operational requirements analysis method based on question answering of WEKG
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作者 ZHANG Zhiwei DOU Yajie +3 位作者 XU Xiangqian MA Yufeng JIANG Jiang TAN Yuejin 《Journal of Systems Engineering and Electronics》 SCIE CSCD 2024年第2期386-395,共10页
The weapon and equipment operational requirement analysis(WEORA) is a necessary condition to win a future war,among which the acquisition of knowledge about weapons and equipment is a great challenge. The main challen... The weapon and equipment operational requirement analysis(WEORA) is a necessary condition to win a future war,among which the acquisition of knowledge about weapons and equipment is a great challenge. The main challenge is that the existing weapons and equipment data fails to carry out structured knowledge representation, and knowledge navigation based on natural language cannot efficiently support the WEORA. To solve above problem, this research proposes a method based on question answering(QA) of weapons and equipment knowledge graph(WEKG) to construct and navigate the knowledge related to weapons and equipment in the WEORA. This method firstly constructs the WEKG, and builds a neutral network-based QA system over the WEKG by means of semantic parsing for knowledge navigation. Finally, the method is evaluated and a chatbot on the QA system is developed for the WEORA. Our proposed method has good performance in the accuracy and efficiency of searching target knowledge, and can well assist the WEORA. 展开更多
关键词 operational requirement analysis weapons and equipment knowledge graph(WEKG) question answering(QA) neutral network
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Modeling and Simulation for Complex Repairable System with Built-in Test Equipment 被引量:1
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作者 吕学志 于永利 +1 位作者 张柳 任帆 《Defence Technology(防务技术)》 SCIE EI CAS 2011年第2期119-125,共7页
In order to research the effects of built-in test(BIT) on the system and select BITand test strategy,the complex repairable systems with BITequipment are modeled and simulated by using Simulink.Based on the model,the ... In order to research the effects of built-in test(BIT) on the system and select BITand test strategy,the complex repairable systems with BITequipment are modeled and simulated by using Simulink.Based on the model,the influences of different built-in test equipments,maintenance time and error probabilities on the system usability are evaluated.The simulation results showthat they effect on the system differently.The simulation method of complex system based on Simulink provides a technique approach to research the effects of BITon the system and select BITand test strategy. 展开更多
关键词 computer application complex system built-in test equipment SIMULINK
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Tri-directional shaking table tests of vibration sensitive equipment with static dynamics interchangeable-ball pendulum system 被引量:1
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作者 C.S. Tsai Yung-Chang Lin +1 位作者 Wen-Shin Chen H.C. Su 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2010年第1期103-112,共10页
Recently, the high-tech industry has become a key industry for economic development in many countries. However, vibration sensitive equipment located in these industrial buildings is vulnerable during earthquakes, whi... Recently, the high-tech industry has become a key industry for economic development in many countries. However, vibration sensitive equipment located in these industrial buildings is vulnerable during earthquakes, which may cause huge economic loss. In this study, an innovative isolator for safeguarding the vibration sensitive equipment, namely, the static dynamics interchangeable^all pendulum system (SDI-BPS) is proposed and investigated to examine its protective capability for the vibration sensitive equipment during earthquakes through a series of tri-directional shaking table tests. The experimental results illustrate that the SDI-BPS isolator can provide significant damping to rolling types of base isolation systems for reducing the bearing displacement and size, and avoid the stress concentration, which can cause damage or scratches on the rolling surface of the isolator, to prolong its life span of service. The SDI-BPS isolator also provides excellent capability in protecting the vibration sensitive equipment and exhibits a stable behavior under long terms of service loadings and earthquakes. 展开更多
关键词 ball pendulum system critical equipment base isolation vibration sensitive equipment base isolator passive control earthquake engineering structural control
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