检索结果-内蒙古大学图书馆

作者： Zhu, Chun Mei Zuo, Yun Bo Wu, Guo Xin School of Mechanical and Electrical Engineering Beijing Information Science and Technology University Beijing 100192 China Key Laboratory of Modern Measurement and Control Technology Ministry of Education Beijing 100192 China

ISBN: (纸本)9783038351221

The load identification technology is applied in the overrunning clutch torque test, and a new test method is brought up as to apply the experimental modal analysis theory and the load identification principle into the test study. Through the improved test method, the testing device's dynamic properties are acquired, the transfer function matrix of the system is exported, the test method of overrunning clutch torque is improved, and the test precision is increased. The rational structural design and reliable data processing make it more convenient for practical application. © (2014) Trans Tech Publications, Switzerland.

关键词： Transfer functions

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Fault diagnosis model based on multi-manifold learning and PSO-SVM for machinery

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仪器仪表学报 2014年第S2期35卷 210-214页

作者： Wang Hongjun Xu Xiaoli Rosen B G Key Laboratory of Modern Measurement & Control Technology Beijing Information Science & Technology University School of Mechanic and Electric Engineering Beijing Information Science&Technology University Halmstad University

Fault diagnosis technology plays an important role in the industries due to the emergency fault of a machine could bring the heavy lost for the people and the company. A fault diagnosis model based on multi-manifold learning and particle swarm optimization support vector machine(PSO-SVM) is studied. This fault diagnosis model is used for a rolling bearing experimental of three kinds faults. The results are verified that this model based on multi-manifold learning and PSO-SVM is good at the fault sensitive features acquisition with effective accuracy.

关键词： fault diagnosis multi-manifold learning particle swarm optimization support vector machine

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Research on information sharing application technology for the occupation skill teaching

Research on information sharing application technology for t...

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2014 International Conference on Applied Mechanics, Mechatronics and Intelligent System, AMMIS 2014

作者： Shi, Yan Hui Wu, Guo Xin Beijing Business School Department of Information Media Beijing 102208 China Key Laboratory of Modern Measurement and Control Technology Ministry of Education Beijing Information Science and Technology University 100192 Beijing China

ISBN: (纸本)9783038351757

In order to achieve the purpose of "integrating students' practical capacity, initiative spirit cultivation and humanistic quality, technical literacy and artistic achievement" about vocational technology cultivation, in the teaching research on vocational skill competition, we explore, develop and construct a digital information sharing mechanism and application technology oriented to "multi-level, comprehensive skill competition teaching". On actual vocational skill cultivation, against the multi-level skill competition teaching, we expand the information technology application, and construct digital information sharing resource pool with certain theory bases and application values. © (2014) Trans Tech Publications, Switzerland.

关键词： Information analysis

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Early faults prediction of running state of electromechanical systems and reconfigurable integration of series safety monitoring systems

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仪器仪表学报 2014年第S2期35卷 224-232页

作者： Xu Xiaoli Zuo Yunbo Chen Tao Liu Xiuli Chen Shanpeng Key Laboratory of Modern Measurement & Control Technology Ministry of Education Beijing Information Science and Technology University School of Mechanical and Vehicle Engineering Beijing Institute of Technology Department of Environmental Science and Engineering Faculty of Bioresources Mie University

Fault prediction technology of running state of electromechanical systems is one of the key technologies that ensure safe and reliable operation of electromechanical equipment in health state. For multiple types of modern, high-end and key electromechanical equipment, this paper will describe the early faults prediction method for multi-type electromechanical systems, which is favorable for predicting early faults of complex electromechanical systems in non-stationary, nonlinear, variable working conditions and long-time running state; the paper shall introduce the reconfigurable integration technology of series safety monitoring systems based on which the integrated development platform of series safety monitoring systems is built. This platform can adapt to integrated R&D of series safety monitoring systems characterized by high technology, multiple species and low volume. With the help of this platform, series safety monitoring systems were developed, and the Remote Network Security Monitoring Center for Facility Groups was built. Experimental research and engineering applications show that: this new fault prediction method has realized the development trend features extraction of typical electromechanical systems, multi-information fusion, intelligent information decision-making and so on, improving the processing accuracy, relevance and applicability of information; new reconfigurable integration technologies have improved the integration level and R&D efficiency of series safety monitoring systems as well as expanded the scope of application; the series safety monitoring systems developed based on reconfigurable integration platform has already played an important role in many aspects including ensuring safety operation of equipment, stabilizing product quality, optimizing running state, saving energy consumption, reducing environmental pollution, improving working conditions, carrying out scientific maintenance, advancing equipment utilization, saving mainten

关键词： electromechanical systems early faults safety control monitoring systems reconfigurable integration

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Fault feature extraction for wind turbine based on PCA

Fault feature extraction for wind turbine based on PCA

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第五届国际自动化测试与仪器仪表学术会议

作者： Chen Tao Xu Xiaoli Key laboratory of Modern Measurement & Control Technology Ministry of Education Beijing Information Science & Technology

Wind turbine is the key equipment in energy *** this paper,the principal component and the kernel principal component are studied in fault diagnosis of wind *** and characteristics of PCA and KPCA are *** experiment of fault diagnosis in wind turbine generator shows that the PCA has better performance in feature extraction application.

关键词： feature extraction wind turbine generator PCA KPCA

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Study on detection method based on multiple information from instantaneous disequilibrium of thermal flow

Study on detection method based on multiple information from...

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第五届国际自动化测试与仪器仪表学术会议

作者： Wu Guoxin Liu Lina Cai Yunlong Xu Xiaoli Key Laboratory of Modern Measurement & Control Technology(Ministry of Education) Beijing Information Science & Technology University

During thermal analysis measurement,precise detection and control of temperature field in hearth is the core of thermal analysis and thermal flow information measurement technologies,which are usually characterized by high non-linearity,variable operation modes,strong coupling,and interferences,consequentially it has been impossible to establish a premise static process *** factors influencing temperature field within the hearth could be described in a parameterized manner by a detection means obtained on the basis of multiple information,and a similar scaling function for three-dimensional distribution of thermal flow based on multiple data infusion theory to reveal three-dimensional temperature distribution characteristics inside the hearth and key heat exchange routines different temperature rise rate,we could intuitively view actual instantaneous distribution of temperature inside the hearth in a visible manner,extend system observation scope in terms of time and space,and improve reliability and resolution capacity of thermal flow data,which will certainly improve reliability and accuracy of thermal analysis and measurement

关键词： Thermal Analysis Heat detection Information Fusion

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Smart mobile terminal design of classic dongba culture international sharing platform

Smart mobile terminal design of classic dongba culture inter...

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第五届国际自动化测试与仪器仪表学术会议

作者： Wu Guoxin Xu Xiaoli Zhang Xu Wang Hongjun Ding Chunyan Key Laboratory of Modern Measurement & Control Technology(Ministry of Education) Beijing Information Science & Technology University

The smart mobile terminal devices are popularized,Dongba scriptures in building a global international platform to share information,research the use of wireless communication technology to achieve a shared mobile end *** sharing platform for mobile applications is built with standardized reliable easy to maintain,and security *** is proposed of the low coupling the mobile terminal functional modules,and ultimately the purpose of the Dongba cultural heritage and sharing information is realized.

关键词： Dongba Culture International Sharing Platform Smart Mobile Terminal

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Mechanical fault feature extraction based on normal signal

Mechanical fault feature extraction based on normal signal

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第五届国际自动化测试与仪器仪表学术会议

作者： Zhang Xiaodong Wu Guoxin Xu Baojie Zuo Yunbo Key Laboratory of Modern Measurement & Control Technology of Ministry of Education Beijing Information Science & Technology University

The historical normal signal of mechanical equipment contains the normal feature information of mechanical equipment,and the fault signal can be viewed as a superposition coupling of normal feature and fault feature as well as random noise of machinery *** paper analyzes and processes the normal data and fault data of mechanical equipment operation,and then conducts the comparative analysis of the acquired results,which facilitates to extract the fault feature implied in the signal,and thus easily discovering the fault related to the mechanical *** it verifies the effectiveness of mechanical fault feature extraction method based on the normal data in the mechanical fault diagnosis through experiments.

关键词： fault diagnosis fault feature extraction normal data EMD

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esearch of the equipment selected based on AHP and fuzzy comprehensive evaluation method

esearch of the equipment selected based on AHP and fuzzy com...

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第五届国际自动化测试与仪器仪表学术会议

作者： Chai Furong Wang Hongjun School of Key Laboratory of Modern Measurement & Control Technology Ministry of EducationBeijing Information Science and Technology University

Based on equipment selection as the research object,this paper comprehensive analyzes the equipment type selection involves technical indexes and economic indexes and market factors in three aspects,a total of 21 factors,constructs the evaluation system of equipment type selection,use AHP method to determine the weight of each factor,equipment type selection evaluation model is established,and finally adopts the way of voting and the fuzzy comprehensive evaluation method for performance as A,B two devices to make decisions,and it has been proved that the equipment selection decision model has good practicability,can provide equipment selection basis for corporate decision makers,choose the equipment for the enterprise.

关键词： equipment selection AHP Fuzzy Comprehensive Evaluation Weights

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Application of improved Hicks-Henne shape function algorithm to wing parameterization of wind turbine

Application of improved Hicks-Henne shape function algorithm...

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第五届国际自动化测试与仪器仪表学术会议

作者： Liu Lina Wu Guoxin School of Key Laboratory of Modern Measurement & Control Technology Ministry of EducationBeijing Information Science & Technology University

Abstraet:Airfoil shape parameterization is an important link of wind turbine airfoil optimize *** solve the problem of airfoil parameterization unified mathematical model,studying the application of Hicks-Henne function and improved algorithm in wind turbine airfoil *** controlling the coefficients of Hicks-Henne function,to avoid airfoil crossing and not smooth phenomenon,ensuring the smooth of the whole wing *** controlling the key points and design variables,researching the coverage of design spatial and influence of design variables on the *** the defect in Hicks-Henne function method for airfoil trailing edge design,and propose improved Hicks- Henne algorithm to improve the angle of trailing ***-Henne function and its improved algorithm extend the wind airfoil parameterization *** has practical value in engineering.

关键词： Wind Turbine Hicks-Henne function Airfoil Parameterization

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