bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simulation of Continuous Tension Stringing Process of Conductor with Bending Stiffness Model
Authors: Liu Chen , Qin Jian , He Yongjun , Sun Guolei 
Published: January 2022

Abstract
At present, there is no research on the calculation of tension variation of the conductor with bending stiffness model between the continuous span during tension stringing construction. Aiming at the typical terrain with large elevation difference in UHV project, a vector finite element method for calculating the tension of the conductor with bending stiffness model passes through the pulley in the process of tension stringing is proposed. The process of the wire rope under the action of the tractor pulling the conductor passes through the pulley continuously is realized. The variations of tension of tensioner and tractor, reaction force of pulley and envelope angle of the conductor passes through the pulley are obtained by simulation of tension stringing conditions such as 1 pulls 1, 1 pulls 2, etc, which provides reference for equipment selection for the tension stringing construction of mountain terrain with large elevation difference.
Research on Improvement of Cold Extrusion Technology of Connecting Screw
Authors: Yuan Yuhong , Ren Yu , Wu Quan 
Published: January 2022

Abstract
In order to solve the flange and dent defects in the end face of the cold extrusion of the connecting screw, the Deform3D software is used to simulate the extrusion forming process of the connecting screw, and the velocity vector is used to study the metal flow law of the part in the cold extrusion process. According to the velocity field and deformation law obtained by the simulation, the end face depression defect in the forming process is predicted. An improved production process is proposed, and the simulation results show that the new process scheme effectively eliminates the “sag” defect on the end face of the part. Finally, the extruded parts with qualified dimensional accuracy are obtained through experiments, and the results are basically consistent with the simulation results.
A Predict Method of Water Pump Operating State Based on Improved Particle Swarm Optimization of Support Vector Machine
Authors: Pan Jian , Li Yujiang , Wu Panfeng 
Published: January 2022

AbstractIn order to improve prediction accuracy of water pump operating state, a chaotic prediction model of the pump vibration data based on improved particle swarm optimization of support vector machine is proposed in this paper. Firstly, a grouping optimization strategy particle swarm algorithm based on cosine function is proposed. Then, the training set is obtained on the time series of vibration data by phase space reconstruction. Secondly, The improved particle algorithm is used to optimize the penalty parameters, insensitive loss coefficient and width parameters of support vector machine. Then, a prediction model of vibration data is established by using support vector machine combined with training set and optimal parameters. Finally, the operating state of the pump is predicted according to pump vibration measurement and evaluation method. Compared with the method of linear decreasing weight strategy, the method proposed in this paper is more accurately.
Development and Application Characteristics of High Gradient Magnetic Separator
Authors: Wang Purong , Xu Guoyin 
Published: January 2022

Abstract
As one of the most effective techniques for fine particle processing, high gradient magnetic separation is mainly used in the separation and enrichment of fine and weak magnetic particles and other important industrial fields. High gradient magnetic separator is a new type of high intensity magnetic separator, which has strong ability to capture fine and weak magnetic particles, developed on the basis of ordinary high intensity magnetic separator. Based on the early periodic- high -gradient magnetic separators, the optimization development direction of high gradient magnetic separators and their application characteristics of various high gradient magnetic separators in these decades were summarized, and the future development directions of high gradient magnetic separator were presented.
Research on the Dynamic Response of Gravity Dam under Blasting Vibration
Authors: Zhuang Jinzhao , Li Chang , Zhang Bingzhe , Ren Yanlong , Lü Mingzhe 
Published: January 2022

Abstract
With the continuous development of blasting technology, it has been widely used in various construction projects. While bringing convenience to construction, it also has a series of negative effects on surrounding buildings (structures), especially the negative effects of blasting vibration on buildings (structures), which has been paid close attention by scholars at home and abroad. For blasting vibration on the dynamic response of the gravity dam to produce, this article adopts the method of numerical simulation, the finite element software ANSYS is applied, the numerical calculation model of concrete gravity dam is established and the dynamic time-history analysis is calculated, in the different blasting conditions, the blasting vibration on the dynamic response of gravity dam is obtained, the calculation and analysis results as basis is supplied for the selection of the blasting vibration monitoring part of the gravity dam.
Research on Lightweight of Docking Structure Based on ANSYS
Authors: Chai Shaolei , Chen Ming , Mao Jigui , Long Guangjun , Wu Nianpeng 
Published: January 2022

Abstract
The docking structure has broad application prospects in the construction of tower assembly. However, the docking structure has a relatively large quality, which has a greater impact on the operations of high-altitude workers. This paper studies the impact force on docking structure during the docking process. The finite element analysis (FEA) model of the docking structure and the tower section is established and the impact force of the docking structure under various wording conditions is calculated. Based on the calculation results of the impact force the lightweight research of the docking structure is carried out and the optimization constraint conditions are proposed. The simulation model is established by ANSYS and the optimization design of guiding tools and vertical limit tools are completed by adjusting the structural parameters. After the optimization design, the docking structure is trial-produced and tested. Through the method of FEA and experiment, a butting device that meets the requirements of strength and rigidity and is lighter in weight is obtained. Compared with the existing docking structure, the weight of the optimized docking structure is reduced by about 39%. The research results can provide a reference for the design of the docking structure.
Current Status and Future Development of Fuel Cell Ships in China
Authors: Zhan Zhipeng 
Published: January 2022

AbstractThe high quality development of fuel cell ship industry is of great significance for China to achieve carbon dioxide peaking and carbon neutrality. The research of fuel cell ships in China is still in its early stage and faces many challenges to achieve industrialization. In this paper, the types and characteristics of fuel cells are introduced, and the fuel cell types suitable for marine applications are identified. Then, the research status of fuel cell ship projects in China and abroad is introduced. By comparing fuel cell ship projects, the gap between domestic and foreign fuel cell ship projects is discussed. Finally, in view of the existing problems of fuel cell ships in China, some suggestions for the development of marine hydrogen fuel cells in China are put forward, and the future development of marine hydrogen fuel cell technology in China is prospected.
A Method for Image Recognition of Insulator Jacket Defects under Small Sample Conditions
Authors: Li Xinhai , Zeng Lingcheng , Lu Yongyin , Lin Yuede , Zeng Xinxiong 
Published: January 2022

Abstract
Accurate identification of insulator jacket defect images requires a large number of samples for model training, and the actual defect image datasets available for model training is seriously insufficient. In order to solve the problems of the model cannot be trained, over-fitting and low accuracy caused by too few training samples, this paper proposes a new method for image recognition of insulator jacket defects under small sample conditions, which combines image enhancement technology and meta-learning technology to train the U-Net image segmentation network, and finally obtain the image recognition model of the insulator jacket defect. In this paper, the defect recognition models using meta-learning method and without meta-learning are compared experimentally, and the results show that the proposed method can achieve accurate recognition with a small-scale original data set.
FEA and Quasi-static Test on Energy Absorption Characteristic of Space Orthogonal Concave Honeycomb Structure with Negative Poisson’s Ratio
Authors: Sun Nan , Wang Shuai , Zhou Kaifa , Ma Wenyi , Xu Bohao 
Published: January 2022

Abstract
As a representative of metamaterials, negative Poisson’s ratio (NPR) material possesses special mechanical properties such as expansion, negative compression ratio and so forth. As a result, it is widely used in the fields of vehicles, aerospace, et al. In this paper, a novel space orthogonal concave honeycomb structure (OC) is designed based on traditional concave honeycomb structure (CHS). In order to explore the influence rule of OC structure on the deformation and energy absorption capacity of crash box under low-speed collision, mechanical analysis and parameter research on OC structure are conducted through quasi-static compression test and numerical simulation. The results suggest that the finite element results of OC structure fit well with the experimental results, and the FEM is highly credible. In addition, the novel OC sandwich structure can effectively enhance the deformation capacity and improve the energy absorption performance of the crash box. When the wall thickness ? of OC structure is 1mm and angle ? is 50°, the deformation and energy absorption capacity of the crash box increased by 25.6% and 19.3% respectively.
Size Effect in the Split Hopkinson Pressure Bar Experiment
Authors: Nie Hailiang , Ma Weifeng , Ren Junjie , Wang Ke , Cao Jun , Dang Wei , Yao Tian , Wang Kang 
Published: January 2022

Abstract
For many structures, their service environment is very strict, and the requirements for the impact resistance of materials are very high. Therefore, the dynamic testing method has important scientific significance and application value for practical engineering. Split Hopkinson pressure bar (SHPB) is one of the most common experimental methods for obtaining dynamic mechanical properties of materials. However, there is no uniform standard for the size of the bars and specimens used in the test. Theoretically, the size has little influence on the experimental results, but it has not been proved by experiments. This paper mainly studies the influence of device/specimen sizes of split Hopkinson pressure bar through experiments, it is demonstrated that the sizes of bars and specimen have little effect on experimental results.
Technology Status and Development Trend of Modular Moving System
Authors: Hou Youshan , Yang Yong , Xie Zhongtian 
Published: January 2022

Abstract
With the development of technology, modular independent suspension technology has been widely applied on high-movement off-road platforms in the developed world because of the characteristics of offline assembly and full-body lifting. At the same time, after the breakthrough of key techniques such as the stiffness spiral springs, the high dissipation of the shock absorbers, the lightweight of double-wishbone steering mechanism and the non-maintenance bearing, the ability to carry the off-road mobility and armor protection of the military vehicles have been significantly increased. In this case, the application of the modular independent suspension and its current state around the world was explained, that the development of this technology is of great significance to the off-road maneuvering of our military equipment was also represented in this paper.
Study on the Effect of Blasting Vibration on Rock Bolt and Shotcrete
Authors: Ren Yanlong , Yang Xuanli , Li Chang , Lü Mingzhe , Zhuang Jinzhao 
Published: January 2022

Abstract
The blasting tunneling construction method is often used in the underground engineering projects such as tunnels, coal mines roadway, chambers and so on, rock bolt and shotcrete support is used. Although the blasting construction method has many advantages, but also will be accompanied by adverse effects. Blasting vibration of blasting construction not only to the surrounding environment, building (structure) and other adverse effects, but also on the support of the underground project itself has a negative impact. In order to discuss the impact of blasting vibration on shotcrete and rock bolt support in the process of blasting tunneling of roadway, a certain amount of explosives is detonated in the hole of the working face, the finite element software ANSYS/LS-DYNA was used to establish the numerical calculation model, through time history analysis calculation, the distribution law of the vibration velocity on the shotcrete surface along the section and the variation law of the longitudinal tension and compression stress of the rock bolt are obtained. The results show that the blasting vibration produced by blasting tunneling has a great influence on the shotcrete at the shoulder, but little influence on the axial force of the rock bolt.
Faster R-CNN Algorithm Based Relay Protection Platen State Identification Method
Authors: Li Xinhai , Luo Haixin , Zeng Lingcheng , Meng Chenxu , Yin Yanhe 
Published: January 2022

Abstract
Currently, the check of the relay protection pressure plate’s throw-out status is mainly carried out manually, due to the extremely large number of decompression plates, manual methods can cause detection errors due to fatigue. This paper proposes the processing of relay protection pressure plate photographs by using image processing techniques, the Faster R-CNN image recognition algorithm uses the feature of generating detection frames directly using RPN to identify the platen throwback status of the processed platen images, greatly improving the speed and accuracy of the detection frame generation. The experimental results show that, the method proposed in this paper effectively solves the problem of errors arising from manual verification checks of platen throwbacks, reduced workload for substation staff, the platen recognition rate can be over 98% correct.
Research on Pressure Measuring Device with Magnetic Fluid
Authors: Hao Ruican , Feng Zhixin , Liu Huagang , Wang Shang , Xing Feifei , Yao Jia 
Published: January 2022

Abstract
Magnetic fluid is a novel material which could be applied in many fields including sensors, sealings, bilmedicines, and so on. Its super magnetism and fluidity could be used in the sensor as an inducting core. Magnetic fluid and its characteristics were introduced to adapt to the application in the pressure measuring devices. A pressure measuring device with magnetic fluid was proposed and the structure was analyzed and designed according to the characteristics of magnetic fluid. The working principle of pressure measuring device with magnetic fluid was analyzed, and the structure of pressure measuring device was designed and reformed to avoid the overflow and recovery of excessive of magnetic fluid. One arm of the U tube was designed to be a large cylinder to storage large quantities of magnetic fluid. The higher the required precision is, the larger the diameter of one arm should be designed with respect to the other arm of the tube. The measuring range of designed device could also be adjusted as needed. The measuring efficiency of the device could be improved by the designing and reforming work.
Eighth International Meeting of Technological Innovation
Authors: García Afanador , Calero C A , Vera-Contreras D A , Barba-Escobar A , Alvarez-Diaz J , Soler-Giraldo G , V-Niño E D 
Published: January 2022

Abstract
The eighth International Meeting of Technological Innovation (8th IMTI) is the result of the effort and dedication of researchers, research groups, research and extension division, and academic programs from the engineering faculty of the Universidad Francisco de Paula Santander, Ocaña, Colombia, The 8th IMTI was held on October 6-8, 2021, in Ocaña, Colombia, and has been creatively designed with the purpose of allowing the best possible experience of knowledge exchange for all speakers and participants; besides, from the interaction by means of a discussion forum for the academic and scientific community to contribute with the effective knowledge transfer
The 8th IMTI has been highlighted and consolidated as a space where students, teachers, and professionals develop a permanent reflection on research trends and occupations in engineering. This annual meeting allows academic programs in engineering, architecture, urban planning, and related, to find new elements to incorporate into the academy life and thus be updated with the recent advances and last technologies. Therefore, the organizing committee to thank the Universidad Francisco de Paula Santander (UFPS), and the Foundation of Researchers in Materials Science and Technology (FORISTOM), for all the support academic and scientific received.
In the same way, are extremely thankful to all authors and participants for providing their valuable contributions for this proceeding as well as the reviewers for their constructive recommendations and criticism aiding to improve the presented articles in this volume of proceedings. Likewise, we hope you enjoy the reading of this volume of the Journal of Physics Conference Series (JPCS), IOP Publishing, and that these manuscripts contribute to the generation and transfer of knowledge, as well as to the strengthening of research in Colombia.
Consequently, the articles of this volume refer to general topics of physical and mathematical applied to sciences, engineering, technology, and innovation that were addressed in the 8th IMTI; for this reason, the editor hopes that those interested in the area of research, technology, and innovation in sciences and engineering can enjoy this reading, of the volume of the Journal of Physics: Conference Series (JPCS), which reflects a wide variety of current issues, that contributes to the generation and transfer of knowledge, as well as to the strengthening of research in science and engineering in Colombia.
“Education and expression freedom for anyone”.
List of Organizing Committee,National Committees,International Committee,Sponsor,Partners are available in this pdf.
Flow pattern identification of liquid-liquid (oil and water) in vertical pipelines using machine learning techniques
Authors: Ruiz-Diaz C M , Gómez-Camperos J A , Hernández-Cely M M 
Published: January 2022

Abstract
Given the importance of process control in the petrochemical industry, there is a need to determine the behavior of the fluids inside the pipes. In this work a methodology is developed for the identification of flow patterns in vertical pipes with diameters between 0.01 m and 0.10 m, from the implementation of artificial intelligence techniques, for a liquid combination of two phases composed of oil with viscosity in the range of 792 Kg/m3 to 1823 Kg/m3 and water at room temperature. The predictive models generated in the structuring of the methodology were trained with 70% of data based on viscosity parameters, pipe diameter, volume fraction and surface velocities of the working fluids stored in a database. The remaining information, equivalent to 30% of the total, was used to develop the automatic model validation. The flow patterns identified by the intelligent system for oil and water flow, without considering the predominant substance, are churning, dispersed, very fine dispersion, transition flow, intermittent, and annular
Implementation of an automated dryer with solar collector
Authors: Regino-Ubarnes F J , Jaramillo H Y , Moreno-Garcia F E 
Published: January 2022

Abstract
This research work consists of the development of an automated sustainable drying system using forced and preheated air to reduce the production time of handmade bricks, so a dryer witha solar collector wasimplemented to take advantage of the energy from solar radiation. A virtualinstrument was developed, which allows to visualize the variables of temperature and humidityinside the drying chamber, additionally a temperature control was implemented, this control allows the system to maintain a constant temperature during the drying process. Samples were taken from the production of the brick kiln “El Tejar” and dried by this device, thenthe drying times and their physical and mechanical properties were compared, finding that the bricks dried with the proposed prototype retained these properties. As for the compressive strength tests for samples of both processes was around 30.6 Kgf/cm2 and 31.2 Kgf/cm2, the deflection resistance was around 1.2 Kgf/cm2 and 1.3 Kgf/cm2, the initial absorption rate was around 0.3 g/cm2/min and 0.4 g/cm2/min, and finally the percentage of water absorption for both processes were around 12.9% and 13.1%. The difference lies in the drying times, since drying in the artisanal brick kilns takes about 15 daysin the proposed dryer takes 9 days, resulting in a decrease of 40% in this process.
Physical resistance of the flexural joint in mortar Joints and clay blocks prisms
Authors: fanador García N A , Guerrero Gómez G , Nolasco Serna C 
Published: January 2022

Abstract
In buildings, each component contributes to resisting seismic forces and an important part in this activity are the masonry walls composed of: fired clay solid brick of 120 mm width and horizontally perforated clay blocks of 100 mm and 150 mm width. The main focus of this research is to determine the flexural strength of the horizontally perforated clay block-mortar joint, using different types of mortar as established in the “Reglamento Colombiano de Construcion Sismo Resistente” for four suppliers used in the municipality of Ocaña, Colombia. A semi-automatic machine that takes into account the physics in the application of loads was designed to carry out the flexural test in mortar-block joints. The average flexural strength in mortar-block joints was determined for three types of mortar corresponding to 0.219 MPa, 0.232 MPa, and 0.291 MPa respectively, for the municipality of Ocaña, Colombia. This research established a direct relationship between the compressive strength of the mortar and the flexural strength of the 100 mm wide horizontally perforated clay mortar-block joint. A physical comparison was made in terms of the compressive strength of the prism and the flexural strength of the clay mortar-block joint with that obtained by other researchers in India and found quite similar results.