bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of microservice in electric power unified modeling platform
Authors: Yang Qiang , Xie Shanyi , Huang Shu , Zhang Ziying 
Published: November 2019

Abstract
Electric power unified modeling platform based on the traditional monolithic architecture has some disadvantages of monolithic architecture application, such as limited scalability and inflexible upgrade and deployment, etc. This paper proposes how to apply microservice to solve these problems, and make the platform more flexible and efficient in the process of data application, function extension, upgrade and deployment. The integration method of microservice and existing service architecture, and the implementation strategies of identification, deployment, registration, discovery and security access control of microservice are introduced in detail. The practical application of microservice in task management, data analysis, and data access has verified the effectiveness of the scheme. The application of microservice enriches the service category of the platform, simplifies the data access mode, and enhances the convenience of interaction with the platform.
Radar digital beam research and battlefield experimental simulation of air-sea integrated
Authors: Lu GuiLin , Tu Jian , Wang ShaoHong 
Published: November 2019

Abstract
We have studied the electronic warfare design scheme of airborne integration sharing a radar digital beam. This multi-beam integration technology adaptively switches from one type of system radar to another type of system radar according to different detection targets..Due to various bandwidths, the study of various target spectrum conversions of different bandwidths from the notch angle, the narrowband interference in the broadband environment, and the interference of the spectrum template, it is adopted that the recursive neural network algorithm optimization using multiple beams,the beam forms a null trap at the frequency of the interference, thereby solving the waveform interference problem of different targets, and realizing the effect of the integrated communication of the air-sea integrated communication of the conformal antenna,and simulation experiments, and achieved good results.
Prediction method of silicon content in blast furnace hot metal based on IPSO-HKELM
Authors: Hu Kaifei , Hu Qinghe , Liu Chongmin , Zhang Shuang 
Published: November 2019

Abstract
Aiming at the problem that the silicon content of molten iron can not be detected online, a model for predicting silicon content in molten iron based on Hybrid Kernel Extreme Learning Machine optimized by Improved Particle Swarm Optimization Algorithm (IPSO-HKELM) is proposed. Firstly, the input variables are reduced by PCA, and then the prediction model of molten iron content based on HKELM is established. In this paper, PSO is used to optimize the kernel parameters of HKELM. Aiming at the problem that PSO is easy to fall into local optimum, the Inertia weight reduced with the number of iterations and the random back-based learning mutation operation are introduced, so that PSO can jump out of the local minimum point more easily and get the optimal result. Experiments show that the prediction model of silicon-based silicon content based on IPSO-HKELM has high prediction accuracy and short time, which can meet the actual production needs.
Research on Vibration Fatigue Life of Commercial Vehicle Stent Based on PSD Spectrum
Authors: Yuan Z W , Sun L , Zhu S M 
Published: November 2019

Abstract
The battery frame stent structure is a significant part for a commercial vehicle, which often suffers from fatigue damage. In order to solve this problem, the principle of structural vibration fatigue analysis is discussed and the vibration fatigue of the battery frame stent structure is studied in this paper. Prompting acceleration of the stent and strain time history of the dangerous points are obtained by carrying out the load collection test under specific road conditions. Through the analysis of the strain at the dangerous points, the maximum stress and weak parts are obtained, which provides a reference for the fatigue life analysis. The fatigue damage distribution of stent is got out by carrying out stent vibration fatigue analysis based on Dirlik model and acquired prompting acceleration PSD spectrum. After user feedback, the predicted position and life are more consistent with the actual situation.
Study on jamming mechanism of the planetary roller screw mechanism
Authors: Cai Wei , Liu Geng , Ma Shangjun , Qiao Guan , Du Chuanming 
Published: November 2019

Abstract
This paper explores if there exists jamming phenomena in the planetary roller screw mechanism. Three kinds of jamming phenomena, such as mechanical jamming, dead point jamming, and self-locking jamming, are elaborated by using static analysis of the planetary roller screw mechanism. The results show that mechanical jamming and dead point jamming won’t happen in the planetary roller screw mechanism under the condition of high strength materials, high post-treatment hardness and without regard to error. And when the nut bears unbalanced loads or when the nut and the roller may self-lock in small pitch, the variation of input torque and output velocity is analysed by dynamics simulations. The fact that the planetary roller screw mechanism will not be self-locking jamming is verified.
A Computing Model of Foil-surface-type IR Decoy Radiation Based on Pyrophoric Multi-hole Activated Metal Combustion Model
Authors: Wang Biao , Wang Chaozhe , Yang Yongjian , Huang Jinke 
Published: November 2019

Abstract
A computing model of foil-surface-type IR decoy radiation which considers the changes of combustion time, relative air velocity and height of the decoy is established in this paper. The diffusion concentration of oxygen in the pyrophoric multi-hole activated metal is studied firstly. By solving the heat balance equation of foil, the combustion model of foil is established. Based on this, the infrared radiation of a single foil is calculated and verified by comparison with the experimental results. Finally, the infrared radiation characteristics and the infrared image of the whole foil-surface-type IR decoy are obtained. The calculated results are in good agreement with the experimental measurements, so the computing model provides an effective method for predicting the combustion temperature of foil-surface-type IR decoy under high-altitude and high-speed launching conditions…
Design and Simulation Analysis of Seedling Picking Mechanism of Pot Seedling Transplanter
Authors: Liping Xiao , Chuang Pu , Jinping Cai , Jinlong Lin , Han Cai , Liangliang Huang , Fangqian Deng 
Published: November 2019

Abstract
Aiming at the problems of complicated structure, difficult processing and high cost of transplanting mechanism of pot seedling transplanting machine, this paper develops a kind of crank and rocker type transplanting mechanism. The mechanism consists of transplanting arm, eccentric wheel, connecting rod and cylindrical cam seedling clamp. This paper analyzes the working mechanism of the seedling picking mechanism, and establishes the geometric relations among the components by selecting the appropriate parameters of the seedling picking and releasing points of the crank and rocker mechanism. A set of optimal solutions are solved iteratively by using the software of Matlab. Meanwhile, the cam mechanism used to control the opening and closing of the seedling clamp is designed by using the geometric characteristics of the seedling clamp and the periodic characteristics of the seedling clamp, and the results of Matlab are modeled in SolidWorks and imported into Adams for virtual simulation analysis. The analysis results showed that the seedling clamp could reach the pre-set position to pick and release seedlings smoothly through the movement of the seedling picking mechanism, which verified the correctness of the mathematical model of the seedling picking mechanism.
Research on fault diagnosis method based on KPCA-SDAE
Authors: Hu Qinghe , Sun Peng , Zhang Shuang 
Published: November 2019

Abstract
The complexity of modern chemical processes is increasing, and the degree of process automation is also improving. In order to extract further features and diagnose the faults of TE process accurately, steadily and quickly, this paper presents a method of using Kernel Principal Component Analysis (KPCA) and Stacked Denoising Auto-Encoder (SDAE) to extract the secondary features and using softmax to classify the faults. Firstly, the KPCA is used to reduce the dimensionality of the data, reduce the irrelevant feature information, and prepare for further feature extraction of SDAE. Then SDAE is used to extract features through unsupervised pre-training and supervised global fine-tuning, and effective feature information is obtained for classification. Finally, softmax classifier is used to classify the extracted features, and fault state recognition and classification of TE process are realized. Experiment results show that this method can extract feature information successfully, identify fault types accurately, and its accuracy and training speed are better than those using SDAE alone.
Research on rolling bearing fault diagnosis of high-speed train
Authors: Zhuo Wang , Yu Zhang 
Published: November 2019

Abstract
The rolling bearing is the main vulnerable component of a rotating machinery on high-speed train, which is very important to the safe operation of high-speed train. Based on the fundamental analysis of the causes of rolling bearing faults on high-speed trains, the feasibility of wavelet packet analysis and BP neural network in rolling bearing fault diagnosis of high-speed trains is discussed. In this paper, wavelet packet is used to denoise data and extract features, then the training BP neural network is used to diagnose and analyze the characteristic data accurately, and the diagnosis results are obtained. By comparing the training results, the number of wavelet packet decomposition is determined, and the accuracy of BP neural network diagnosis is improved. In this paper, the analysis is carried out by using the bearing data of American electrical laboratory “Case Western Reserve University”, an efficient and fast method for rolling bearing diagnosis is presented, which can be applied to real-time fault diagnosis and monitoring of rolling bearing faults for high speed train.
Research on Load Collection Technology of Loader Working Device
Authors: Zhu S M , Yuan Z W , Sun L 
Published: November 2019

Abstract
A convenient and feasible load collection technology for 5 ton loader working device is proposed in this paper. Based on the force characteristics of the working device and mechanics theory, the theoretical calculation model of external load is established. Firstly, the static load test shows that the relative error of the load value between the theoretical calculation and the actual apply is less than 5%. Then, the loader is subjected to the dynamic load test under a typical clay material. The external load values are obtained based on the theoretical calculation model and Adams dynamic simulation. The results show that the external load values between calculation and the simulation are basically the same. This proves that the load collection system is credible, which can provide the basic data for the structural design and the bench test and the fatigue analysis of the loader working device.
Development and application of lifting and levelling system for space station
Authors: Pengfei Wang , Xiaodong Zhang , Shuai Xing , Tonghui Liu , Chengli Zhang 
Published: November 2019

Abstract
In this paper, the characteristics of the hoisting assembly process of the space station are analysed. The adjusting parameters of suspension under different eccentric conditions are explored. The scheme of the hoisting levelling system during the hoisting process of the space station is put forward, and various levelling means are given. Through collecting and analysing the geometric parameters of the distance from the horizontal plane during the hoisting process, the relative position and posture of the space station and the horizontal plane under the current state are obtained. Through theoretical calculation and analysis model, the levelling control software is compiled, and the automatic levelling of the space station is realized. The feasibility and accuracy of the design scheme are verified by laboratory results and actual levelling analysis. The controllability, stability, convenience and safety of the space station hoisting operation are improved.
Design and Implementation of Software Architecture for Automotive Green Supply Chain Based on Microservices
Authors: Chen Chen , Dong Changqing , Cai Jianjun , Ding Qiang 
Published: November 2019

Abstract
In order to realize effective control of green procurement, manufacturing and recycling in the green supply chain of automobiles, an automotive green supply chain software architecture based on micro-service architecture is proposed. This architecture contains data acquisition technology , environmental compliance evaluation technology, hazardous materials and collectible materials collection and analysis technology. The system architecture splits the overall application of automotive green supply chain management into multiple services, and APIs are used for communication and collaboration between services. It has been proved by experiments that the micro-service-based automotive green supply chain software architecture can control, track, analyze and record information on automotive materials and components in real time, and give corresponding evaluation of environmental compliance, and label hazardous substances and recyclable materials. It solves the problems of material data information flow lag, low management efficiency, and inability to flexibly expand the system architecture in the green supply chain of automobiles, and provides an effective vehicle green supply chain management and analysis platform for automobile manufacturers.
Experimental study on liquid distribution in a vane type propellant tank
Authors: Jintao Liu , Yong Li , Wen Li , Lei Chen , Chongwu Guo 
Published: November 2019

Abstract
Propellant tank is used to store the propellant in propulsion system. Propellant management device (PMD) is the key component in propellant tank to manage the liquid propellant under zero gravity. A microgravity drop tower test system was established to investigate the performance of PMD. A kind of vane type propellant tank was used for the drop tower test. Single module was used for experiment tests, and the microgravity level wass between 10-2g0 and 10-3g0. The anhydrous ethanol is used as analogue liquid. Different volume fraction of liquid were used to study influence of the PMD on the management performance. Changes of gas-liquid interface during the test are studied. Velocities flow along the vane of different liquid volume fraction in the tank are different at the beginning (t<0.8s). The liquid reorientation time is 0.8s when the liquid volume fraction is larger than 10%. The liquid reorientation time is prolong when the liquid volume fraction is less than 10%. The liquid climbing height along vane under microgravity increases as the volume fraction of liquid reduces. Experimental results provide a favorable reference for further optimization design of vane type propellant tank.
Research on Structural Design of Land and Space Inspection Robot
Authors: Cao P Y , Dong J J , Wang J W 
Published: November 2019

Abstract
The quadrotor is an aircraft that can take off and land vertically, and it is often used for target search and tracking of tasks. In order to further enhance the flexibility and endurance of the drone, a land and air inspection robot is designed. The land and air inspection robot is combined by a drone and a smart car. While driving, if the obstacle is not the case, the robot uses the landline equipment, otherwise, the rotor is used. The motion simulation analysis is carried out through 3D modeling to achieve optimal mechanical design. Through flight design calculation, the self-anti-jamming flight algorithm is obtained. According to the actual measurement, the design of the land and air inspection robot can achieve the expected results, and it can be widely used in the inspection tasks of factory monitoring, anti-terrorism, search and rescue, forest fire prevention and other occasions.
A New Fault Diagnosis Method of Flexible OSC Clamp
Authors: Tian Xingjun , Yao Qi , Yao Yufeng , Zhang Tao , Lei Yuntao , Li Jiu 
Published: November 2019

Abstract
The capacity and safety of train transportation mostly depends on the working state of the flexible overhead contact system (OCS) clamp in the traction power supply system. The notable feature of the clamp loosening problem is its temperature change. Due to the influence of long-distance measurement, environmental factors, the traditional signal processing methods for temperature measurement have basically failed. The feature analysis method combined with empirical clustering and time series analysis can effectively determine the thermal health status of bare conductors in the overhead contact line and realize the diagnosis of the thermal state. In order to eliminate the much interference in measurement process, the data is pre-processed based on the point density criterion, and then the clustering method of big data is used to calculate the relative proximity of the sampled data, the normal data and the historical fault data. And the time-series similarity analysis method is used to obtain the predicted fault development time of the hidden equipment. Experiments show that the method can accurately identify the thermal health of bare conductors, the concept is clear and the algorithm is simple.
Automobile tire pressure monitoring technology and development trend
Authors: Xin Quan , Jingfeng Gong , Junjie Guan , ri Bai , Mingxing You , Pian Zou 
Published: November 2019

Abstract
Automobile puncture is one of the major hidden dangers of frequent traffic accidents. Accurate and real-time monitoring of tire pressure of automobile tires is of great significance for improving vehicle safety and improving traffic status. This paper first summarizes and analyzes the published technical methods of automobile tire pressure detection, and analyzes the advantages and disadvantages of related detection methods in combination with previous research results. Finally, this paper proposes a development direction of the tire pressure system. The tire pressure and tire temperature signals obtained by the tire pressure monitoring system are used as the correction amount of the ABS system control signal, and the tire pressure and the tire temperature can always be controlled within a safe range. It can also reduce the chance of tire’s bursting due to sudden braking and improve the reliability of the ABS system.
Design of welding control system based on Siemens PLC
Authors: Yuan Minghai , Huang Weijun , Zhang Xiteng , Tian Shumin 
Published: November 2019

Abstract
In order to accelerate the rapid development of the automobile manufacturing industry and improve the competitiveness, a welding control system of automobile dashboard bracket based on Siemens PLC is designed. The welding control unit of automobile dashboard bracket takes Siemens PLC as the control core, to realize real-time control with welding fixtures, robots, the sliding door with monitoring, the shutter door and other parts through a touch screen. The entire design system realizes welding control of automobile dashboard bracket, meeting production process requirements, effectively reducing costs and improving production efficiency.
Optimum Design and Research and Application of Protective Tools for New Generation Apogee Engine
Authors: Liu Zhibin , Xia Yongquan , Wang Yuhui , Yin Pu , Lu Yi , Wang Yu 
Published: November 2019

Abstract
The new generation apogee engine is the key equipment in the satellite propulsion system, and accompanied by the whole life cycle of AIT development and production. Therefore, there are many assembly processes around the new generation apogee engine itself and its surroundings, and the engine belongs to the star catalogue prominent product, which has the risk of bumping and scratching. In this paper, a new generation of apogee engine protection tooling is designed, and the general design and detailed design are carried out. The implementation effect is good. It can be extended to all models equipped with a new generation of apogee engine to meet the needs of scientific research and production.
Mechanism Design and Kinematics Analysis of Spider-like Octopod Robot
Authors: Yang Zihao , Yuan Minghai , Shi Xinhui , Yang Zenan , Li Mengyuan 
Published: November 2019

Abstract
Based on the study of spider motion, a spider-like Octopod robot is proposed and its forward and inverse kinematics are analyzed. The position of the end of the mechanical leg in space at certain joint angles and the rotation angles of each joint when the end of the mechanical leg is positioned in space can be obtained.
Research on a Wave Power Generation and Anti-rolling Device for Ships
Authors: Liu Li , Guo Liming , Hou Puyue , Zhou Yuying 
Published: November 2019

Abstract
Inertial wave energy converter is a new technology to extract wave energy. The existing research mainly applies it to autonomous underwater vehicle or special wave power generation equipment. This paper explores the application of inertial wave energy conversion technology in ships to convert wave energy into electrical energy while reducing ship sway. Taking a work boat as an example, this paper first establishes the ship model in ANSYS and uses the panel method based on potential flow theory to obtain the hydrodynamic parameters of roll motion. The rolling random wave moment is simulated by equal frequency method. The mathematical model of the wave-ship-gyro system is described, and the system is simulated in the Simulink environment. Some physical limitations of the device and the classic passive PD controller of this system are introduced. The focus is on how to select the gyro angular momentum at the beginning of the design to match the ship to achieve the best power generation effect. Finally, the simulation results are analysed and the new power generation technology is evaluated.
Application Research of Slag-removing Robot for Zinc pot on Hot-dip Galvanizing Line
Authors: Bai L , Yue C F , Li D J 
Published: November 2019

Abstract
Metallurgical industry mostly works in high temperature, high pressure, dusty and other harsh environment, where applied research Metallurgy robots started late. In recent years, the application research of metallurgical robots has gradually gained the attention of everyone. The hot dip galvanizing pot slag is usually operated manually, the working environment of the workers is bad, there is with a large safety hazard, and the process of controlling the slag is difficult. The use of slag-removing robot instead of labor is applied to the hot-dip galvanizing line, which is the trend of intelligent and automated development of the coating industry.
Measurement and Calculation of Speed Profile for Rotating Machinery
Authors: Qihe Liu 
Published: November 2019

Abstract
The vibration signal angular domain resampling of rotating machinery depends on the speed profile. To obtain the speed profile, n ribbons of uniform width with black and white were pasted along the circumference of the shaft. Key phasor pulses were picked up by photoelectric sensor, and the threshold of the sampling sequence was calculated. Key phasor time vectors were calculated according to the threshold and the sampling sequence. The rotating speed was calculated by the key phasor time vector and the midpoint coefficient of the Lagrange 7 point interpolation differential. The speed profiles of single key phasor pulse, 4 key phasor pulse and digital encoder with 60 pulses per revolution are measured by using LabVIEW program simultaneously. It shows that the smoothness and the calculation accuracy of the speed profile can be improved by using multi key phasor pulse per revolution.