bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the Application of Artificial Intelligence in the Field of Mechanical Automation
Authors: Li Wanling , Meng Fanzhao 
Published: May 2021

Abstract
As a branch of computer science, artificial intelligence involves disciplines such as computer science, psychology, philosophy, and linguistics. It can simulate certain human thinking processes and social behaviors. In the past 20 years, the application of artificial intelligence has penetrated into many areas of life and production, including economics, space technology, active control, computer planning, and mechanical manufacturing. It has produced huge economic benefits in production practices and pushed human society forward by a huge step. With the increasing research and development of artificial intelligence technology, its application in mechanical engineering has become more and more extensive. Through its high-end technology and intelligent algorithms, it can effectively and accurately solve various problems in the process of mechanical automation experimental research and production use. This article will analyze and research the application of artificial intelligence in the field of mechanical automation.
Design and Motion Analysis of Octopod Bionic Robots Based on a Multi-Link Walking Mechanism
Authors: Li Shuge , Zhao Pengju , Sun Wencheng 
Published: May 2021

Abstract
In this paper, a bionic robot walking mechanism based on a multi-link mechanism was proposed, which consisted of two crank-rocker mechanisms, one parallelogram mechanism and two tripods, all of which were connected by hinges. An octopod bionic robot was designed by using the multi-link walking mechanism. The kinematics analysis of the robot walking mechanism was carried out by using MATLAB software, and the linear walking gait of the virtual prototype of the robot was simulated by using ADAMS software. The simulation results showed that the octopod bionic robot had good motion stability, strong terrain adaptability, and good practical application and popularization value.
Study on dump truck dumping process and dust extraction device design
Authors: Geng Tianyin , Chen Kailang , Huang Xin 
Published: May 2021

Abstract
The particle diffusion and movement rules of the dump truck dumping material are simulated in Fluent based on the gas-solid two-phase flow theory. The simulation results show that the dust generation mainly occurs in two stages. One is that when the particle flow is falling, the particle diffusion mainly concentrates on the back of the particle flow. The other is that when particle flow collides with the contact surface, dust diffusion occurs in the area where the collision point is consistent with the outflow direction. According to the simulation results, a dust extraction device for dump truck is proposed to capture dust generated into the atmosphere. The influence of three representative factors: ambient temperature, shape of the dust collection port, fan speed on the performance of the dust extraction device is studied by means of orthogonal experimental design. The results show that the use of plain multiple slot suction port and higher fan speed can improve the dust removal effect and work efficiency of the dust collection device.
Application on large-span reconstructed structure with external prestressing technology
Authors: Zhao Guodong , Duan Shixin , Sun Bo , Yuan Xiaohua 
Published: May 2021

Abstract
The application of external prestressed reinforcement technology in large-span reconstruction projects is introduced through a project example of drawing columns to increase the use space of existing buildings. Simplified calculation method and midas gen finite element analysis software are used to analyze and calculate the bearing capacity limit state and normal service limit state of GHJL-1 and GHJL-2. In order to ensure the safety and applicability of the large-span reinforcement and reconstruction project, the static load method is used to inspect the serviceability limit state of the structure after the reconstruction. The results show that the deflection and crack width of GHJL-1 and GHJL-2 meet the requirements of the code limits.
A Discussion on the Type Selection of the 200 m Span Closed Coal Shed in the Thermal Power Plant
Authors: Si Xiaofei , Wu Baohui , Huang Gangying , Ma Bailing , Zhang Kai 
Published: May 2021

Abstract
This thesis discusses the type selection of the concrete implementation of the 200 m span closed coal shed in the thermal power plant. We analyze the characteristics and development situations of five schemes for selection, and focus on introducing and recommending the closed coal shed which uses the PVDF membrane material as its outer space cover. Then we choose the steel grid of three-centered circulars and the membrane framework as its structure selection, and strives to make it highly coordinated with the surrounding buildings and environment. Such renovation is to turn it into an industrial construction in the new era with both aesthetics and practicality, and to promote the rapid development of the membrane material structure as a new product of new technology. At the same time, the paper provides guidance and reference for the type selection of the supramaximal span structure of 200 m and above.
Research on electrode lifting system based on recursive least square method and fuzzy PID
Authors: Zhou De-Dong , Su Fang 
Published: May 2021

Abstract
The electrode of calcium carbide furnace bears the function of conduction, heat transfer and furnace condition regulation. How to keep the furnace condition in the best condition by lifting and lowering the electrode has always been a hot and difficult point in the research. In this paper, based on the analysis of the equivalent circuit of calcium carbide furnace, the system model of electrode position-current is identified by the recursive least square method, and a fuzzy PID controller based on the constant control strategy of electrode current is designed to keep the furnace condition in the best state. The simulation and application results show that the designed system has good dynamic response, anti-disturbance ability and robustness.
A Novel Method for Distribution Transformer Short-circuit Test
Authors: Luo Xiaoxiao , Xiao Qianbo , Wang Qian , Sheng Zhiping 
Published: May 2021

Abstract
Short-circuit test of distribution transformer is an important test to check out the short-circuit resistance of distribution transformer. This paper presents a novel short-circuit test method of distribution transformer based on energy storage short-circuit test device, which can complete the short-circuit field test of distribution transformer. The basic principle of the device is introduced, and the feasibility of the method is verified by simulation and experiment.
Application of Automation Technology in Automobile Machinery Manufacturing
Authors: Wang Xuhui , Wang Yinuo 
Published: May 2021

Abstract
China’s science and technology have become increasingly mature in today’s society, and various fields of society will actively apply relevant advanced technologies to reshape the original operating model during the development process. In particular, the application range of automation technology has become more extensive, because automation technology itself has more advantages and cannot be replaced by many other traditional technologies. It can fundamentally improve the work efficiency of some manufacturing industries. Thanks to the application of high-precision automation technology, all work can be carried out continuously in accordance with established computer programs. In this way, the number of errors caused by human work is actually reduced, and the pass rate of the product can also take this opportunity to be significantly improved. When performing various tasks, workers in the mechanical manufacturing field will actively apply the most suitable automation technology according to their actual conditions, and organically integrate their valuable work experience with brand-new automation technology. This allows all work to be of higher quality in the implementation process. In the automobile production industry, since many parts are manufactured on the assembly line, if the advanced automation technology is actively applied, the production time of parts can be saved, and the assembly and processing work of the staff will be carried out in an orderly manner. In this way, the profits of the automobile manufacturing industry can be effectively improved and unnecessary cost input can be reduced.
SIW-Based Leaky Wave Antenna with High Radiation Efficiency
Authors: Li Yihui , Wang Min , Wu Wen , Zhou Xin , Qiu Changjin 
Published: May 2021

Abstract
In this letter, a substrate integrated waveguide (SIW) based leaky-wave antenna with high radiation efficiency is presented. The radiating unit of the proposed LWA consists of a pair of meandering slots with different lengths. The combination of slots with different lengths effectively improves the leakage factor of leaky-wave antenna and thus improves the radiation efficiency of the antenna. The proposed antenna can scan from -46° to -9°, and the radiation efficiency of the antenna is 87.55%-97.6%. The leaky wave antenna is fabricated and measured. The measured results show good agreement with the simulation ones.
Research on an under- actuated bionic manipulator
Authors: Wu Binghui , Qiu Tong , Chen Yuhan 
Published: May 2021

Abstract
Through the analysis and statistics of the calcaneus angle of deer, horse and other cloven-toed animals, the appropriate manipulator configuration is selected. This paper proposes an under-actuated bionic manipulator to assist astronauts in space welding tasks. The motion simulation of the manipulator was carried out utilizing ADAMS, and the relationship curve of the angular velocity at each joint of the under-actuated bionic manipulator was obtained. Through curve analysis, it is not difficult to see that the design of the fingertip spring bar is the key to ensuring the reliable operation of the bionic manipulator.
Effect of Environmental Factors on Ultrasound Detection of Plastic Encapsulated Microcircuits
Authors: Zhao Hailong , Zhang Kui , Zhou Zhenhua , Xi Shanbin , Yin Lijing , Huang Jie , Peng Hao 
Published: May 2021

Abstract
Based on the problems encountered in ultrasonic detection of Plastic Encapsulated Microcircuits (PEMs), the relationship between storage environment, immersion time, baking treatment and temperature test and other environmental factors and the stability of PEM are studied for the characteristics of plastic encapsulated materials that are susceptible to temperature changes and moisture. And its effect on the results of ultrasonic testing, the reasons for the inconsistency of ultrasonic testing results are analysed, and storage, transportation, immersion time, baking treatment requirements before and after the test, and device use recommendations are put forward.
Research on technology of safety automatic particle forming equipment for pyrotechnic
Authors: Li Jing , Zhang Yuli , Yang Hao , zhang Hongguang , Liu Jingsong , Sun Yang , Mu Jiaqing , Li Jianbai , Zhu He , Gu Peng , Ou Xibin , He Fei , Yang Ming , Yin Xiangchun , Zhang Yiqun 
Published: May 2021

Abstract
Pyrotechnic agent was a sensitive energetic material that produces explosion and combustion effects of pyrotechnics. It plays a decisive role in the safety, reliability and effectiveness of the weapon system. Because the current pyrotechnic agent is sensitive to high temperature, mechanical impact, and friction, there are many unsafe factors in its manufacture and use. The demand of continuous, automatic and environmental protection production technology for pyrotechnics in China is increasing. The traditional sensitive explosive can not meet these requirements, so it is necessary to accelerate the development of sensitive explosive to safeandinsensitive explosive.Therefore, in order to solve the key issues such as the safety and high-efficiency preparation of multi-component pyrotechnic agents, realize the environmental protection, safety and low-cost production of pyrotechnic agents. Based on the project design of a mixed propellant production system in an initiating explosive device factory, this research carried out the research on the safety automatic particle forming equipment for initiating explosive. It provides technical support for the innovation of weapons and equipment, and the upgrading of weapons and equipment manufacturing and production technology.
Analysis and Experimental Study on Friction and Wear Characteristics of Super High-Speed Mechanical Seal
Authors: Guo Jungang , Hu Liguo , Li Zhenjiang , Jianag Jinbo , Huang Weifeng 
Published: May 2021

Abstract
Mechanical seal is the core component of the servo system. It’s sealing, reliability and wear resistance depend not only on the structural design of the seal, but also on the matching of friction pair materials on the end face of the seal. On the basis of the feasibility study of ion implantation on the surface of the seal ring, a comprehensive test scheme is proposed to verify the friction and wear characteristics of the seal pair. By selecting typical graphite and rotating metal ring pairs to test and test under dry grinding conditions, changing the linear velocity and the end face specific pressure, the friction and wear characteristics of paired friction pairs are compared and analyzed by using friction and wear testing machine, the influence of load and rotational speed on the pair friction coefficient of sealing pair is systematically studied, and the sealing tribological characteristics are revealed. This paper introduces mechanical-seal work reliability of temperature stress and system test performace based seal pair, the application of these plans will provide a reasonable and efficient technical way for the verification of life and reliability test of ultra-high speed mechanical seal.
Research on optimization model of Equipment network maintenance Equipment
Authors: Wei Xia , Quan SHI , Zhuang YIN SHI , Song AI YAN 
Published: May 2021

Abstract
Aiming at the problem that the demand quantity of networked maintenance equipment is not accurate in the demand analysis results of networked maintenance equipment, an optimization model of maintenance equipment is established by using the principle of queuing theory and simulation method to describe the optimization problem of maintenance equipment quantity. According to the improved genetic algorithm, the established optimization model is solved, so as to get the optimal quantity of maintenance equipment.
Design of Quadruped Inspection Robot for Substation
Authors: Dong Xu , Zhang Bin , Hu Xuran , Meng Jian , Dong Jiyuan 
Published: May 2021

Abstract
The intelligent inspection robots in substations mostly use wheeled chassis, which have good passability when running on flat roads, but it is difficult to effectively cross obstacles under terrain conditions such as steps and stairs. A quadruped inspection robot for substation is designed to improve the walking ability of the robot with a four-leg alternate walking mode to optimize the leg structure design for road conditions such as steps and stairs in the substation. The robot is equipped with pan-tilt detection components and inspection equipment such as multi-degree-of-freedom manipulators can complete intelligent inspection and lightweight maintenance tasks in open substations, and achieve full coverage of the inspection area.
Numerical study on the flow characteristics of slot cooling header after rolling
Authors: Shi Jianhui , qi Xingang , Liang Ruquan , Zhang Danhui 
Published: May 2021

Abstract
In order to study the flow distribution characteristics of the slot cooling header after hot rolling, and the influence of different structure and technological parameters on the flow uniformity of outlet velocity and length direction was obtained. The three-dimensional steady-state numerical simulation analysis of the flow inside the manifold was carried out by FLUENT analysis software. The influences of inlet pressure, shape and structure of intermediate transition cavity were studied respectively. The results show that within the range of 0.1~ 0.5MPa of the inlet pressure, the velocity fluctuation in the direction of the outlet length increases with the increase of the pressure, and the width decreases from the middle of the gap to both sides. The flow velocity at the jet outlet can be increased by changing the angle of outflow tilt of the water supply pipe.
The Study on AlxGa1-xN Film Deposition by Radio Frequency Magnetron Sputtering
Authors: Deng Danxia , Qin Zuoyan , Hu Hao , Jin Lei , Sun Zhenhua , Wu Honglei 
Published: May 2021

Abstract
A series of AlxGa1-xN films are deposited on Si (111) substrates by radio frequency magnetron sputter with different experimental Parameters. Crystallinities, elemental components and surface morphologies of films are investigated in terms of their deposition Parameters. The results reveal that the films grow along with the (004) crystal direction and have a more Al component than the target, which is attributed to the higher bond energy of Al-N. A higher pressure and nitrogen concentration lead to more surface structures such as bubbles on the AlxGa1-xN films. Using a pressure of 1.0 Pa and nitrogen concentration of 33%, AlxGa1-xN films with good quality are finalized achieved.
Liquid metal based flexible pressure sensor for tactile sensing of robots
Authors: Chen Ruiyang 
Published: May 2021

Abstract
In contrast to circuit made by rigid material, flexible electronic devices are fabricated by flexible conductive material and have potential future in field of wearable electronic devices, biomedicine and intelligent sensor. Liquid metal is a kind of metal or alloy material that can remain liquid at room temperature. In recent years, it has been widely used in the field of stretchable electronics. This research applied adhesion different of liquid metal on different materials’ surface to print liquid metal circuit of certain pattern on thermal transfer paper and trans-printed the circuit to flexible base to fabricate stretchable and flexible pressure sensor. In the research we tested the electrical property of pressure sensor and applied the results to tactile feedback research of intelligent robot. Not only does this liquid metal pressure sensor have simple structure and low in cost, but is suitable for large area and mass production. We believe this pressure sensor can be widely used in field of human-computer interaction and robot intelligent sensing.
Reliability modeling of gear system considering strength degradation
Authors: Bai Enjun , Yang Hui , Huang Shutao , Xie Liyang 
Published: May 2021

Abstract
The traditional reliability models of gear system were usually developed without considering strength degradation of gear tooth. Although some analysis methods considered strength degradation, but they ignored the uncertainty of strength degradation that is due to the random load. In order to consider the statistically dependent failure between the gears and the uncertainty of gear strength in the strength degradation process, the reliability models of gear system are developed based on the theory of stress - strength interference. The failure relationships between teeth are expressed by the minimum order statistics. The uncertainty of the strength degradation is expressed by the distribution of material parameter. Using the Monte Carlo simulation, the proposed model is validated. Taking a planetary gear system for a case study, the system reliabilities with strength degradation are analyzed. The results show that the strength degradation has a little influence on the gear system reliability at the early stage and it has a great influence on the gear system reliability at the middle and late stages.
FSEC Racing Car Handling Stability Analysis and Optimization
Authors: Wu Siyu , Pan Jialun 
Published: May 2021

Abstract
In this paper, the whole vehicle virtual prototype of the E22 pure electric formula racing car of Wuhan University of Technology for the 2020 season is built with the help of vehicle dynamics simulation software VI-CarRealTime tool, using multi-body dynamics as the theoretical basis. The suspension system of the vehicle is optimized. The steady-state steering characteristics of the car were analyzed through the simulation results of the virtual working conditions, and the four-wheel positioning parameters were optimized and matched to the specific working conditions. The optimized and matched car makes the steering characteristics of the car more consistent with the handling habits of the team’s drivers, improves the handling stability of the car, saves the optimization cycle for the whole car design process of the university’s formula car, and provides a reference for the design and optimization of the FSEC car.
A New Solving Method of the Athermal Bonding Thickness in Lens Mount
Authors: Huang Jianhua , Chen Yi 
Published: May 2021

Abstract
Adhesives are widely used in the design of optical and mechanical structures. For optics fixed by adhesive bonding, the mismatch of the thermal expansion coefficient of the materials among the lens, the adhesive layer and the frame will bring thermal stress in the radial direction of the lens, which will affect the imaging of entire optical system. Studies have shown that by changing the thickness of the adhesive layer can reduce or even eliminate the radial stress caused by temperature changes, so it is critical to obtain the thickness with low(zero) radial stress. Based on the derivation of the existing athermal bond thickness equation, this paper proposes a new bonding layer constraint condition assumption, introduces the thermal expansion coefficient scale factors k1, k2, and derives a novel athermal bond thickness equation. Then, using the finite element method, the thermal stress simulation analysis of two adhesive lens assemblies with different count materials is solved, by comparing the simulated value with the analytical solutions, it’s found that the errors of both are within 10%, which shows that the newly derived equation has sufficient accuracy to meet the needs of engineering application.
A novel End-effector Finger Rehabilitation Robot (EFRR) for stroke patients
Authors: Hongbo Wang , Yu Tian , Baoshan Niu , Jiazheng Du , Junjie Tian 
Published: May 2021

Abstract
This paper proposes a prototype of a novel end-traction finger rehabilitation robot with flexion/extension and adduction/abduction functions. The degree of freedom (DoF) and finger joint torque of a single-finger module has been analysed, and the calculation and selection of the motor driving force are completed. Finally, the design details of the mechanism and the hardware system of the robot are illustrated. This device minimized the mechanical size to some extent by using only one motor for a single finger, which also reduces the cost and increases the possibility of industrial application prospects.
Terrain Pre-process the Lower Reaches Yellow River and Delta Estuary Coast of Two Dimensional Numerical Model
Authors: Ma Liangchao , Jiang Caodong , Li Dongfeng , Zhang Hongwu , Li Zihao 
Published: May 2021

Abstract
Mike21 is a professional engineering software package for simulating the flow, wave, sediment and environmental problems of rivers, lakes, estuaries, bays, coasts and oceans. The pre-processing of the terrain in the study area is an important foundation for constructing the Mike21 model. In order to improve the calculation accuracy of the Mike21 model, taking the lower Yellow River estuary channel and the Bohai Bay area as an example, the use of Google Earth satellite images and the AutoCAD topographic map to extract the terrain boundary is discussed, and the terrain interpolation problem in terrain pre-processing is discussed. The two terrain pre-processing methods can effectively improve the terrain pre-processing efficiency and make the terrain processing result file more realistic.