bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modeling Power IoT Terminal Entity Based on OOPN
Authors: Miao Weiwei , Wei Lei , Zeng Zeng 
Published: February 2022

Abstract
With the continuous development and ceaselessly construction of power IoT system, a huge number of power terminal entities are connected to the power IoT system, which largely affect the performance of power IoT system. The lifecycle process analysis of power IoT terminal entity becomes more and more important. However, the traditional analysis methods often have some shortcomings such as complex process and huge workload. Therefore, it is urgently needed to find out some more effective method to analyze the state and behaviour of power IoT terminal entity. To overcome the shortcomings of traditional analysis methods, an OOPN-based power IoT terminal entity model is proposed by combining object-oriented idea with Petri net technology. The proposed model has the advantages of modularity design, object-oriented, simplified calculation and great flexibility, which is verified with a case study by selecting a transformer as an example of power IoT terminal entity and comparing the data.
Research on Flexible Capacitive Sensors for Smart Textiles
Authors: Wang Yang 
Published: February 2022

Abstract
Smart textiles are a new era of smart textiles that not only have traditional textile functions, but also have information collection, feedback, and multiple intelligent interaction functions with users. As a manifestation of the combination of art and technology in the textile field, smart textiles are of great significance to traditional textiles, clothing, home textiles, and wearable devices. From the perspectives of the background, technology, and development prospects of smart textiles, this article systematically analyses the application technology of smart textiles in practice. Starting from the current state of smart textile research, the article explains the promotion of new material technology to the research of smart textiles. Focus on the technical improvement of capacitive sensing equipment based on flexible fabrics, and find a sensing fabric structure with lower hysteresis, fast response time, good repeatability and stability through design experiments.
Research on control system of small intelligent drilling rig based on lithology identification
Authors: Wu Zebing , Wang Jie , Xi Kaikai , Guo Yulun , Yang Chenjuan , Jiang Mengjie 
Published: February 2022

Abstract
Intelligent oil drilling rig can automatically complete the whole drilling process without human intervention, and can integrate big data with drilling, geology, logging and other disciplines. Aiming at the problem of insufficient rock breaking capacity and complex and changeable drilling process, a small intelligent drilling rig control system is designed. The structural drilling parameter samples such as WOB and rotating speed obtained by the sensor are used for lithology identification in the software MATLAB by using the neural network pattern recognition toolbox and GRNN generalized regression neural network respectively, and the control block diagram of the automatic drilling system is designed in Matlab / Simulink. The neural network control algorithm is used to compare with the classical PID control, The results show that the overshoot and rise time are significantly reduced, and the effect is good. When applied to the oil rig to realize constant WOB drilling, it is conducive to reasonably select the bit type, timely adjust the drilling parameters and improve the drilling efficiency, so as to realize the real intelligence of the oil rig.
Intelligent Control Technology of Tire Tread Pattern Draft Angle for Intelligent Manufacturing
Authors: Li Heng , Chen Yazhou , Huang Zhengxiong , Chen Quan 
Published: February 2022

Abstract
In view of the problem that the tire pattern design may not meet the production requirements, the designer needs to modify the tire pattern draft angle, and the existing pattern draft angle modification process is cumbersome, and the designer’s experience requirements are relatively high, based on the tire pattern draft angle adjustment Experience has developed a tire pattern draft angle intelligent control system for intelligent manufacturing, and developed a corresponding program based on UG10.0 based on this system. The program can automatically determine the type of pattern contour surface, can judge the contour surface unevenness based on the projection method, can automatically recommend the appropriate draft angle, and realize the rapid modification of the draft angle in batches. The actual application of the enterprise shows that this program can greatly improve the efficiency of tire pattern design.
Design of a Catapulted Self-deployable UAV
Authors: Lyu Tian , Qin Shan , Tian ZiAng , Zhang QiYue , Xu YunJing , Lin KeXin 
Published: February 2022

Abstract
Unmanned Aerial Vehicle (UAV) is playing a gradually enhanced role in fields of recon and information acquisition, however restricted departure condition of fixed wing aircrafts, take-off preparation time of multirotor aircrafts etc. have limited its further applications. This research aims to combine advantage of hovering and self-deployable departure to reconcile the shortcomings, meanwhile adapts to drone swarm trend. A catapulted self-deployable quadrotor is designed using 3D modelling software, and later a compatible self-deployable control algorithm is developed using STM32F103 microcontroller, along with its circuitry. Eventually, a prototype of the design is 3D printed, assembled and tested. This design shows merits of easy to carry, low requirements for take-off conditions and good hovering performance and is compatible for multi-UAVs cooperation tendency.
Electrical automation control technology of electromechanical equipment based on artificial intelligence technology
Authors: Liu Yong , Zhao Yan 
Published: February 2022

Abstract
Artificial intelligence technology is the basic measure to ensure the good operation of electrical automation control system of electromechanical equipment. Because artificial intelligence technology is widely used, it mainly uses auxiliary electrical automation control systems such as data real-time monitoring, data acquisition and data mining in electrical automation control technology of electromechanical equipment. The application of artificial intelligence auxiliary system in electrical automation is mainly data acquisition, which integrates and analyzes the data generated in the production process of electrical automation system equipment. During the operation of the electrical automation system of electromechanical equipment, the data generated is extensive, the amount of calculation is large and the analysis is complex. Once the equipment fault occurs, it is easy to affect the electrical automation system and even the business activities of the enterprise. Therefore, the purpose of applying artificial intelligence technology to the production process of electrical automation system equipment is to centrally process the data parameters entered by electromechanical equipment, so that the accuracy of operating parameters of electrical automation control system of electromechanical equipment can be greatly improved, which is conducive to the stable development of production efficiency.
Analysis Research on Operation Condition of Mining Crane
Authors: Xu MM , Zhang ZT , Zhou Z , Zhang H , Li S , Liu YM , Jiang KS , Chen QH 
Published: February 2022

Abstract
Mining cranes play an important role in the transportation and installation of underground equipment. Operating swing angles will seriously affect the operations safety. To ensure the operation safety of mining cranes, this paper firstly established a mathematical model of mining crane hoisting swing, and discussed affecting factors of the oscillation. Then, the orthogonal test method has been carried out, and the optimal and serious working conditions were obtained. Finally, the accuracy of the numerical results have been cross-verified on the ADAMS virtual platform. Results show that the swing trend increases with the increase of pitch acceleration, rotary acceleration and rope length, especially the rotary angular acceleration. The vibration variation trends of Matlab numerical results and ADAMS simulation results are consistent, which cross-verifies the two extreme operation conditions are valid and reliable. It provides a useful reference for the future research.
Research on the force mechanism of the connection between the foundation ring and the anchor cage ring of the high-altitude onshore wind turbine
Authors: Xu Jianjun , Chen Kang , Yang Yunfeng , Zhang Fenghua , Meng Wenqiang , Zou Wuting , Xi Yu , Peng Huaiwu 
Published: February 2022

Abstract
The most widely used connection form of the wind turbine foundation and the tower is the foundation ring method. With the popularization and application of high wheel hub and large-capacity wind turbines, the anchor cage ring has gradually become the connection method of large-capacity wind turbines. Therefore, the force mechanism of the connection between the foundation ring and the anchor cage ring has become an important issue in the basic design of the wind turbine. In this paper, numerical simulation method is used to analyse the characteristics of the two connection methods and force characteristics of the foundation ring and anchor bolts. The force transmission mechanism and force characteristics of the two connection methods are summarized and the stress distribution of the foundation ring, the anchor cage ring and the nearby concrete are obtained. Finally, the basic strengthening strategies under the two connection methods are clarified.
A Novel Intelligent Radar Detection Network
Authors: Zhang Junhua 
Published: February 2022

Abstract
A novel Intelligent Radar Detection Network (IRDN) is proposed to be able to flexibly decompose and re-aggregate all functional elements in OODA cycle, so as to establish a new kind of all-domain kill web featuring on-demand service, flexibility, scalability and optimal kill channel, which can obtain and maintain asymmetric air defense superiority with benefits from all-domain sensing, all-domain C2 and all-domain strike capabilities.
A Simulation Method for Assembly Process of Branch Cables Based on the Minimal Energy Principle
Authors: Yang Weifeng , Liu Jianhua 
Published: February 2022

Abstract
To solve the simulation problem of branch cables in virtual assembly process, a cable simulation method based on the minimal energy principle is proposed. Firstly, to describe the postures and deformationss of the branch cables, a discrete Cosserat rod model is established. Next, according to the description of the minimal energy principle, each system is in the most stable state when its energy takes the minimum, so the postures of the cables could be solved by calculating the extremum of energy optimization model. After that, on the circumstance of ignoring low-speed movement of the cables, the energy could be obtained by the summation of the tensile, bending and torsional deformations potential energy. Then, the Levenberg-Marquardt algorithm is applied to solve the energy optimization model, and the postures of cables is calculated through Hermite interpolation. Finally, the verification example was established to simulate the deformations of the branch cables, which verifying the high calculating speed of algorithm and the authenticity of simulation.
Heat Transfer and Pressure Loss Simulations of Matrix Cooling Channels for Gas Turbine Airfoils
Authors: Wu Xingwei , Li Niudong , Li Feng 
Published: February 2022

Abstract
The paper selected 10 geometrical parameter combinations to numerically investigate the dependencies of heat transfer enhancement, flow resistances and overall thermal performance on three geometrical factors including rib inclination angle, channel blockage ratio and subchannel number. The investigated Reynolds number starts at 5,000 and can be as high as 90,000. The turbulence model selected was Transition SST model. The results show that the matrix cooling channels of 30deg rib angle have greater heat transfer enhancement and much higher pressure loss than that of 60deg rib angle. Moreover, matrix cooling channels of higher channel blockage ratio have greater heat transfer enhancement and higher flow friction, while the relationship between the overall thermal performance and the channel blockage ratio depends on the Reynolds number. It was also concluded that the heat transfer performance factor of matrix cooling channel does not change linearly with the subchannel number and the effect of subchannel number on heat transfer performance is less significant than the other two factors. Besides, matrix cooling channels of higher subchannel number have higher pressure loss and poorer overall thermal performance.
A Novel Cutting Method for Face-Hobbed Spiral Bevel Gears Based on Tool Path Modification
Authors: Li Lingzhi , Guo Wenchao , Yang Huawei , Mao Shimin 
Published: February 2022

Abstract
A novel tooth surface design method of face-hobbed spiral bevel gears is proposed, which utilizes a solid cutter without axis tilting through tool path control combining with optimized cutter blade profile to control tooth contact patterns and realize tooth lengthwise chamfering. Firstly, a gear tooth surface generating plan of tool path controlling actively is developed, the mathematical model of the tool path is built, and the equations are given in detail, the determination method of all control parameters is also described. Next, the tooth surface functions of generating gear and machined gear are established based on a mathematic model of the traditional cradle machine tool. Then, the machine setting is also given in concise equations. Finally, the tooth contact analysis is also conducted for a specific gear pair to validate the validity and the reasonability of the new tooth modification method.
Simulation Analysis of Cylinder Winding Prestress Based on Ansys
Authors: Li Jiaqing , Zheng Dayu , ChaoDong  , Zhang Zhen , Wang Feng , Wang Yongmei , Wang Xigui 
Published: February 2022

Abstract
Based on the distribution and layer characteristics of the prestressed steel wire-wound cylinder of the four-column hydraulic press, its supporting parts not only bear the constant stress caused by internal pressure, but also withstand the alternating stress caused by the steel wire-wound cylinder, and then produce gradual accumulation of plastic deformation. This paper uses theoretical calculation formulas to solve the corresponding parameters, establish a three-dimensional constitutive model, uses Ansys workbench to optimize its thermo-solid coupling simulation, and compares with the theoretical calculation results to verify the rationality of the design of the prestressed winding cylinder with cooling loading. The design of prestressed steel wire winding cylinder of 400MN plate hydraulic press is combined. Setting cylinder rated working pressure of 88MPa,an inner diameter of 1500mm,its wire winding layers are divided into 10,8,6,4 and 2.Based on the comprehensive analysis of the simulation results, the optimum initial stress table number of steel wire winding is obtained. According to the optimum initial stress table number, the influence law of preload coefficient on the design parameters of prestressed steel wire winding cylinder block is analyzed.
Enhancement of Radiative Cooling Effect by Bioinspired Hollow-core Triangular Structures
Authors: Li Ke , Zhang Tianshun , Pan Lei , Zhang Xinyuan , Xu Xiudong , Dou Shuliang , Li Yao , Zhan Yaohui 
Published: February 2022

Abstract
Inspired by the curiousness that what happens if the silver ant’s hair is designed to be hollow-core rather than solid-core while maintaining its triangular shape, the thermoregulatory response of both the solid- and hollow-core schemes are investigated comprehensively in a photothermal viewpoint. Optical responses, power balances, and field distributions collectively show that the hollow-core system has many advantages over the solid-core system in terms of selective reflection, omnidirectional absorption capability, and overall cooling performance. The investigation sheds more light on the physics in the hollow-core structures and suggests an alternative biomimetic scheme for thermal management.
Identification of Geometrical Error on Multi-Axis Machine Tools Based on a Laser Tracker
Authors: Liu Junfeng , Zhao Yuqian , Lai Tao , Li Fei , Liu Kexian 
Published: February 2022

Abstract
The geometrical errors are affected by many factors for a multi-axis machine tool, such as materials, manufacturing, assembly, measurement, control, and environmental. The geometric error will eventually be reflected in the accuracy of the workpiece; therefore, for each part of the machine tool, the measurement of geometric error is essential. Most geometrical errors are measured separately for each axis. The single geometrical error measurement method is time-consuming. The multiple geometric error measurement methods have some limitations based on different instruments. Laser tracker based on GPS (Global Positioning System) positioning principle can measure the dimensional coordinate. Thus, the laser tracker measured geometric errors in high efficiency, high precision, wide range. This paper introduces the method of measuring the multi-axis machine geometrical error by using a laser tracker with a 1280mm×1280mm×240mm range and compares the measurement result from the traditional method. The results show the laser tracker method has high measurement accuracy, and rapid measurement and compensation of geometrical errors are achievable on a large-stroke machine tools.
Application Research of Portable On-line Inspection System for Car Lights
Authors: Pan Mingqing , Deng Liang , Liu Qiupeng , Xue Mengping 
Published: February 2022

Abstract
In this article, a portable automotive lighting online detection system is designed, which can test various signals of car lamps online. It also can perform function and performance tests on multiple car lamps at the same time. The system has a compact structure in order to be easy to carry. It can be tested in the car light laboratory or be used for on-line testing of the production line. The system can automatically complete data collection and processing online. It can discriminate test results and print test reports easily. It has strong versatility and high measurement accuracy. This portable online detection system is convenient for detection and has good application value.
Research on the Synchronization Problem in the Combustion of Candles
Authors: Cheng Desheng , Shi Bo , Wang Shenghao , Huang Lingling , Qiu Guohao 
Published: February 2022

Abstract
In 2020, IYPT question 5 “synchronized candles” describes an interesting common phenomenon in life. The so-called synchronous candle refers to the flame that can be observed to oscillate when several adjacent candles are burning. Two such oscillations can be coupled with each other, leading to in-phase or reverse phase. In this paper, the control variable method is used to study the reason of the oscillation of a single oscillator and the phenomenon of inphase or anti phase oscillation of candles with different separation distance. It is found that the phenomenon of the oscillation coupling of regular candles is related to the distance between candles. Considering that the gas diffusion coefficient of the air is too low and the isotherm of the candle is relatively stable, the most likely cause of synchronization or inverse synchronization is thermal radiation. Finally, FDS software is used to simulate the combustion of the flame, and the results of in-phase and inverse vibration are also obtained.
Five-axis Ultrasonic Thickness Measurement of Hollow Blade Wall and Evaluation of Internal Chamber Section
Authors: Zhu Jiang , Zhang Wenze , Shen Yijun , Zhu Limin , Zhang Yang 
Published: February 2022

Abstract
Hollow blades play an important role in the aircraft engines. To ensure the manufacturing quality of the hollow blades, an ultrasonic inspection method for inspecting the internal chamber is proposed in this paper. The measured data is obtained by a five-axis Coordinate Measuring Machine with an ultrasonic probe. To fill the vacancy of data in high-curvature regions, an approximation curve is constructed according to the theoretical section line and the measured points. By adjusting the position of the theoretical clamber point and setting the adjustment direction, the non-uniform shrinkage of the ceramic core is simulated and the calculation amount is reduced. Filling points are obtained from the approximation curve and the internal chamber section is reconstructed by these points. The internal chamber of the hollow blade is evaluated from the two aspects of line profile and wall thickness. The experiments have verified the effectiveness of the proposed method.
Study on the Pretreatment of COD in Brewing Wastewater Based on the Ozone Oxidation Technology
Authors: Guo Ju , Hu Guangsheng 
Published: February 2022

Abstract
The high content of COD has always been a difficult problem for the efficient treatment of brewing wastewater. Pretreatment of brewing wastewater to reduce the content of COD was considered as a better solution. In this paper, ozone oxidation technology was used to pretreat brewing wastewater to preliminarily reduce the COD content, so as to provide beneficial conditions for further efficient treatment. The results showed that the reaction temperature (A), ozone intake (B), pH value of reaction solution (C) and reaction time (D) were the main factors affecting the removal of COD from brewing wastewater by ozone oxidation. Combined with the orthogonal test method, the optimum process conditions were A2B3C2D2. It was that the reaction temperature was 50 °C, the ozone intake flow was 7 L/min, the pH value of reaction solution was 7 and the reaction time was 1 h, which made the removal rate of COD reach 40.5%, and realized the goal of pre-removal of COD in brewing wastewater.
Study on Installation of Runway Status Lights
Authors: Jiang Li , Wen Hong , Dai Dongmei , Yan Shan , Yang Hao , Wang Yi 
Published: February 2022

Abstract
Runway Status Lights (RWSL) System uses light to send information to aircraft pilots and vehicle drivers to enhance their situational awareness, so installation and layout of runway status lights are of crucial importance. Based on the common configuration of the runways/taxiways of the domestic airports, we analyze the requirements imposed by the applicable standards on classification and installation of runway status lights and, on the basis of facts, select the optimal strategy for practical installation in Runway Status Lights System Verification Project implemented at Shanghai Hongqiao Airport. Actual testing indicates that lights can effectively send information from the view of pilots. The above analysis and study indicate that a runway status lights system with rationally arranged lights is able to inform aircraft pilots and vehicle drivers of runway safety status and plays a positive role in preventing runway intrusion incidents.