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检索条件"任意字段=2023 6th International Conference on Advanced Algorithms and Control Engineering, ICAACE 2023"

共 292 条记录，以下是181-190 订阅

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Rolling Bearing Fault Diagnosis Method Based on GWO-VMD-SVM 6th

Rolling Bearing Fault Diagnosis Method Based on GWO-VMD-SVM

引用

6th international conference on Electrical engineering and Information Technologies for Rail Transportation, EITRT 2023

作者： Qiao, Yue Ma, Xiaoping Chen, Xiyuan Wang, Ruojin Jia, Limin State Key Laboratory of Advanced Rail Autonomous Operation Beijing Jiaotong University Beijing100044 China School of Traffic and Transportation Beijing Jiaotong University Beijing100044 China Key Laboratory of Railway Industry of Proactive Safety and Risk Control Beijing Jiaotong University Beijing100044 China

ISBN: (纸本)9789819993147

As one of the most critical components of high-speed locomotives, wheelset bearings have received increasing attention in recent years. However, the non-smooth vibration signal and heavy background noise make it difficult to mine the weak fault features. In this paper, we take bearings as the research object and investigate the feature extraction and pattern recognition methods for rolling bearings. From the perspective of shallow machine learning, to address the limitations of traditional signal processing methods and the performance of Variational Mode Decomposition (VMD) and Support Vector Machine (SVM) which are easily affected by parameters, a bearing fault diagnosis method using Grey Wolf Optimization (GWO) algorithm to improve the VMD and SVM parameters is proposed. the results show that the GWO-VMD-SVM method improves the accuracy of bearing fault diagnosis compared with EEMD-SVM and VMD-SVM. © 2024, Beijing Paike Culture Commu. Co., Ltd.

关键词： Variational mode decomposition

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advanced control algorithms for a Horizontal three-Phase Separator in a Hardware in the Loop Simulation Environment 4th

Advanced Control Algorithms for a Horizontal Three-Phase S...

引用

4th international conference on Applied Technologies, ICAT 2022

作者： Aimacaña-Cueva, L. Gahui-Auqui, O. Llanos-Proaño, J. Ortiz-Villalba, D. Universidad de las Fuerzas Armadas ESPE Sangolqui Ecuador

ISBN: (纸本)9783031249709

the three-phase separator has a fundamental role in oil production, due to its multivariable and nonlinear characteristics, controlling it represents a major challenge. In the engineering training academy, having a real industrial process represents a significant cost, however, thanks to technological advances, providing a virtual industrial process is possible. In this research work, a hardware in the loop simulation (HIL) environment is proposed, which includes a three-phase horizontal separator, and its controllers implemented in a physical control device. the proposed system is flexible enough to perform different control algorithms and implement them in any control device. the design methodology of the proposed system includes three sections. In the first section, the nonlinear multivariable mathematical models of the industrial process are obtained. the second section corresponds to the development of the virtual environment, in which the 3D modeling of the industrial process is performed. In the third section, the control strategies are proposed, designed and implemented in a physical control device. To validate the applicability and performance of the variables to be controlled, two control strategies are implemented: a traditional proportional integral derivative (PID) control, and a multivariable model predictive control (MPC). Finally, a comparison of the implemented controllers performance is made for the controlled variables: water level h(t) w, oil level h(t) l and separator pressure P(t). © 2023, the Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Hardware-in-the-loop simulation

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Research on the Optimal Coupling and Uncoupling Position Decision of Flexible Marshalling of Urban Rail Transit 6th

Research on the Optimal Coupling and Uncoupling Position Dec...

引用

6th international conference on Electrical engineering and Information Technologies for Rail Transportation, EITRT 2023

作者： Dongxiu, O.U. Dai, Shaogang Zhang, Xinyin ZhG, Rei School of Transportation Engineering Tongji University Shanghai201804 China The Key Laboratory of Road and Traffic Engineering Ministry of Education Shanghai201804 China The Key Laboratory of Railway Industry of Proactive Safety and Risk Control Shanghai201804 China Shanghai Railway Dispatch Research Center Shanghai202163 China Shanghai Zhangjiang Comprehensive National Science Center Shanghai201210 China

ISBN: (纸本)9789819993109

the expanding scale of the rail network presents vital challenges to urban transportation operation. the demand for energy savings and improved service levels is increasing. Flexible marshalling on spatial lines can achieve a win-win situation for both operation level and passenger service. In this paper, we construct a comprehensive objective model for selecting the optimal coupling and uncoupling positions of trains under imbalanced spatial passenger flow. the model minimizes both the traction energy cost and passenger congestion penalty cost with a genetic algorithm to determine the optimal coupling and uncoupling position of trains under different operating frequencies, focusing on the entire section of the line, considering constraints such as line conditions and capacity, decision variables as the marshalling position. the optimal solution can reduce the traction energy cost by 20.08% to 27.13% and the passenger penalty congestion cost by 14.97% to 34.99%. © Beijing Paike Culture Commu. Co., Ltd. 2024.

关键词： Multiobjective optimization

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Research on Identification of Causes and Prevention and control Measures of Railway Freight Accidents Based on Complex Network 6th

Research on Identification of Causes and Prevention and Cont...

引用

6th international conference on Electrical engineering and Information Technologies for Rail Transportation, EITRT 2023

作者： Wang, Ruojin Ma, Xiaoping Wu, Zhaotian Qiao, Yue Jia, Limin State Key Laboratory of Advanced Rail Autonomous Operation Beijing Jiaotong University Beijing100044 China Beijing Jiaotong University School of Traffic and Transportation Beijing Jiaotong University Beijing100044 China Key Laboratory of Railway Industry of Proactive Safety and Risk Control Beijing Jiaotong University Beijing100044 China

ISBN: (纸本)9789819993147

For the railway operation system, it is vital to find the fundamental causes and their associated chain of rail freight accidents and reduce the chance of accidents from the source. First, we use structured railroad freight accident data based on Derailment, Collision, Crossing, Obstruction and other five types of accidents, and subdivide the causes of accidents into 31 categories from the perspective of human, machine and environment. We use the A priori algorithm to find the relationship between accident types, causes and consequences of accidents. Second, according to the obtained correlation relationship, we construct a complex network model of railway freight accident causation, and mine the fundamental causes and their associated chain of accidents by calculating the topological characteristics of network node degree, path length and clustering coefficient. Finally, we made suggestions for preventing and controlling railroad freight accidents. the results show that the fundamental causes and consequences of different types of accidents are different, and accident prevention and control should focus on the influence of human factors, the integrity of line structure factors such as roadbed and regular maintenance of railroad locomotive equipment. © 2024, Beijing Paike Culture Commu. Co., Ltd.

关键词： Complex networks

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Traffic Operation Status Research Based on Multi-source Data Fusion 6th

Traffic Operation Status Research Based on Multi-source Data...

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6th international conference on Electrical engineering and Information Technologies for Rail Transportation, EITRT 2023

作者： Cao, Ling Wang, Pangwei Dong, Honghui School of Traffic and Transportation Beijing Research Center of Urban Traffic Information Intelligent Sensing and Service Technologies Beijing Jiaotong University Beijing100044 China State Key Laboratory of Advanced Rail Autonomous Operation Beijing Jiaotong University Beijing100044 China School of Electrical and Control Engineering North China University of Technology Beijing100144 China

ISBN: (纸本)9789819993185

At present, modern technologies such as big data, cloud computing and vehicle-road collaboration are developing rapidly, and the existing traffic detection data based on a single detector cannot meet the demand for high-precision data in the vehicle-road cloud environment. Facing the massive, heterogeneous and complex traffic data, this paper selects the data collected by LiDAR, HD camera and V2X communication unit as the data sources for this research, establishing the multi-source traffic data fusion model with wavelet neural network and genetic algorithm optimized BP neural network respectively, and builds the traffic status classification model based on fuzzy C-mean clustering algorithm. the fusion model and the traffic status classification model are verified for the single intersection road section in the vehicle-road cloud cooperative environment. the results show that the fusion accuracy of genetic algorithm optimized BP neural network reaches 93% and the status classification model has high feasibility, which can provide data support for intersection signal control and traffic guidance optimization. © 2024, Beijing Paike Culture Commu. Co., Ltd.

关键词： Data fusion

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Application of Cloud Security Terminal in Information Management of Power Industry 6th

Application of Cloud Security Terminal in Information Manage...

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6th European-Alliance-for-Innovation (EAI) international conference on advanced Hybrid Information Processing (ADHIP)

作者： Jiang, Jiang Xie, Hanyang Li, Yuqing Luo, Jinman Guangdong Power Grid Corp Digital Dept Guangzhou 510800 Peoples R China Guangdong Power Grid Corp Informat Ctr Guangzhou 510000 Peoples R China Guangdong Power Grid Corp Dongguan Power Supply Bur Logist Serv Ctr Dongguan 523900 Peoples R China Guangdong Power Grid Corp Dongguan Power Supply Bur Informat Ctr Dongguan 523900 Peoples R China

ISBN: (纸本)9783031287862;9783031287879

With the powerful computing power of cloud computing, cloud security terminals are widely used in many industries. the information construction of the power industry will generate a large amount of data. In order to improve the efficiency of information management in the power industry and reduce the success rate of information cracking, this paper applies the cloud security terminal to the power information management. After deploying the power industry information management cloud security terminal architecture, build a terminal access control model. Cloud node load is predicted through Bayesian model to ensure smooth power information management. the improved Wu-Manber algorithm is used to protect the power information layer and ensure the safety of power circuit information. In the example verification, after the cloud security terminal is applied, the success rate of information being cracked is less than 10%, the response speed of this method is significantly improved, and the level of power information management is improved.

关键词： Cloud security terminal Power industry Information management Application research Access control Bayesian

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PID control for Radial Active Magnetic Bearings 6th

PID Control for Radial Active Magnetic Bearings

引用

6th international conference on Mechanical engineering, ICOME 2023

作者： Ruviana, Rizqa Pramono, Agus Sigit Mechanical Engineering Department Sepuluh Nopember Institute of Technology Jawa Timur Kota Surabaya60111 Indonesia

ISBN: (纸本)9789819778973

the development of Active Magnetic Bearing (AMB) technology for gas turbines has made significant strides. Initiatives like the Versatile Affordable advanced Turbine Engines (VAATE) program, in collaboration with DARPA and NASA, aim to enhance gas turbine engineering for efficiency, cleanliness, intelligence, versatility, and durability. AMBs have emerged as superior to rolling element and foil bearings due to their temperature, speed, shaft thickness limitations, and shorter lifespan under heavy loads. AMBs are more suitable for large machines operating under high loads and relatively lower speeds than foil bearings. the research introduces a two-degrees-of-freedom model for AMB systems. the modelling involves two identical electromagnets and simplified equations. the model also considers external forces, including sinusoidal forces from motor vibrations, centrifugal forces from shaft unbalanced assumptions and static forces. the system output is represented by eccentricity. the AMB design adheres to SKF standards for conventional bearings. the rotor model is simulated using MATLAB SIMULINKTM, and the Automatic PID Tuner App is used to find control values based on the created transfer function. System stability is analyzed using the Nyquist stability criteria, focusing on the input rotation speed range of 100 RPM–459 k RPM. Higher motor rotation rates contribute favorably to the rotor's ability to remain centred within the stator. Higher motor rotation rates contribute favorably to the rotor's ability to remain centred within the stator. Specifically, the PID controller exhibits excellent resistance to various external forces. Static tests assessed the system's ability to bear loads, where forces ranging from 100 to 400 N were applied to the rotor. However, adding a 400N load to the rotor has exceeded the value of 1,5×10-3 m as the maximum eccentricity threshold. As a result, the maximum load that can be applied to this design is 388 N, with the resulting eccentric

关键词： Gas turbines

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Construction of Cognitive Model of Traditional Sports Health Preservation from the Perspective of Body-Medicine Integration 1

引用

6th European-Alliance-for-Innovation (EAI) international conference on advanced Hybrid Information Processing (ADHIP)

作者： Yang, Fangyan Zhou, Chun Liu, Ying Changsha Med Univ Coll Sports & Hlth Changsha 410219 Peoples R China Shenyang Inst Technol Sch Informat & Control Fushun 113122 Peoples R China

ISBN: (数字)9783031287879

ISBN: (纸本)9783031287862;9783031287879

the traditional sports health care cognitive model has the problem that it takes too long to deal with, resulting in poor cognitive effect of sports health care. Design a traditional sports health care cognitive model from the perspective of physical and medical integration. According to the health preservation theory of traditional Chinese medicine, identify the biological rhythm characteristics of human body, design the behavior output framework for the integration of sports and medicine, compile the application programming interface for the central core of the model, and construct the cognitive model of traditional sports health preservation. Experimental results: the average processing time of the designed sports health preservation cognitive model and the other two cognitive models is small, which proves that the performance of the traditional sports health preservation cognitive model designed from the perspective of sports medicine integration is more prominent.

关键词： Integration of sports and medicine Physical health preservation Cognitive model Time rhythm Health preservation theory of traditional Chinese medicine Scientific exercise

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Design of Electronic Communication Power Monitoring System Based on GPRS Technology 6th

Design of Electronic Communication Power Monitoring System B...

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6th European-Alliance-for-Innovation (EAI) international conference on advanced Hybrid Information Processing (ADHIP)

作者： Liu, Ying Yang, Fangyan Shenyang Inst Technol Sch Informat & Control Fushun 113122 Peoples R China Changsha Med Univ Coll Sports & Hlth Changsha 410219 Peoples R China

ISBN: (纸本)9783031287862;9783031287879

If the electronic communication power supply fails, the entire electronic communication system will be paralyzed, resulting in the abnormal operation of the system and increased maintenance costs in the later period. However, due to the slow transmission rate of the electronic communication power supply monitoring system, a GPRS based electronic communication power supply monitoring system is designed. Hardware part: the communication resources of the base station are used for networking, and the AC input is sent to the rectifier module after power distribution;Software part: identify the type of monitoring object, change the electrical signal or non electrical signal into a standard electrical signal, select UDP as the transmission protocol, use GPRS technology to formulate the communication protocol, and optimize the software function of the electronic communication power monitoring system. Experimental results: the average transmission rate of the electronic communication power supply monitoring system designed this time and the other two electronic communication power supply monitoring systems are 63.712 kpbs, 54.586 kpbs and 54.057 kpbs respectively, which shows that the system performance is more superior after the GPRS technology is integrated into the electronic communication power supply monitoring system.

关键词： GPRS Electronic communication Communication power monitoring Monitoring object Protocol conversion Communication resources

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Parallel Vision/Force Interactive control of Parallel Robots with Uncertainty Compensation

Parallel Vision/Force Interactive Control of Parallel Robots...

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IEEE international conference of Intelligent Robotic and control engineering (IRCE)

作者： Minglei Zhu Cong Huang Jun Qi Yaning Du Min Xie University of Electronic Science and Technology of China Chengdu China Chengdu University of Information Technology Chengdu China

this paper develops a novel force control method-ology: parallel vision/force interactive control, and applies it to the control of parallel robots. this control methodology is an advanced vision-based computed torque control that directly controls position and force in the image feature space. the creativity of this approach is the pose estimation of a parallel robot with visual information and coupling force feedback and vision information in parallel. A Gough-Stewart platform is taken into account to validate this approach.

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