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Introduction

Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
Links
Shanxi Provincial Education Department
Taiyuan University of Technology
location： home> 2020,51(01)
Numerical Study of Bearing Capacity of Cold-formed Duplex Stainless Steel Columns
The duplex stainless stub and long columns were simulated and analyzed by establishing accurate finite element models, and the accuracy of the model was verified by experimental results. The errors between experimental values and corresponding FEM calculation results of square and round stub tubes are all less than 5%. For the long square and round columns, the errors are 2.3% and 3.8%, respectively. Upon the validation of accuracy for the FE models, systematic parametric studies were carried out...
Taiyuan University of technology 2020,51(01): YANG Sen, ZHANG Yongquan, WANG Jiachang, GU Yueyan, SHU Ganping, ZHENG Baofeng. ;PDFviewed：abstract
Cyclic Test of Mongolia Yurts of Cold-formed Thin-walled Steel
Mongolia yurts of cold-formed steel were tested under low-cycle reversed loading to determine their failure mode, hysteretic loops and the deformation situation of key parts of the structure. The hysteretic behavior, strength degradation, rigidity degeneration, ductility and failure modes were studied. Accordingly, in-depth analysis of stressing features and the interaction between the rigid-frames inside and outside the loading plane was made to evaluate the seismic performance of the structural...
Taiyuan University of technology 2020,51(01): CHEN Ming, SHAO Feifan. ;PDFviewed：abstract
Parametric Numerical Analysis of Bending Performance of Light Steel Keel Sandwich Composite External
Through the numerical simulation analysis of open-wall and non-opening light steel keel sandwich composite wall panel under plane load, the bending performance of light steel keel sandwich composite wall panel was studied, and the light steel keel was analyzed. The one-to-one correspondence between the deflection at the maximum deformation of the sandwich composite wall panel and the stress of the component and applied load was evaluated. The structural performance under normal load conditions wa...
Taiyuan University of technology 2020,51(01): TAN Chenglong, WAN Haiying, CHEN Anying. ;PDFviewed：abstract
Research on Mechanical Properties of Double-column F-type High Strength Aluminum Alloy Supports
Aluminum alloy structure is one of the key links to realize city cabling as the main object of State Grid new material promotion. In this paper, a new type of cable bracket(double column type F aluminum alloy cable bracket) was tested in terms of its mechanical properties, so as to obtain the load-displacement curve of aluminum alloy cable bracket under static load and the strain intensity of key measuring points. Through numerical simulation analysis, the load-displacement curve and failure mode...
Taiyuan University of technology 2020,51(01): CHEN Canwen, CHEN Yu, FENG Gang, YANG Hang. ;PDFviewed：abstract
Stability Analysis of Cold-formed Thin-walled Steel Storage Rack Upright Under Localised Fire
To study the compression behaviour of cold-formed thin-walled steel storage rack uprights with complex sections exposed to localised fires, this study, based on EN 1991-1-2 and EN 1993-1-2, used the finite element software ABAQUS to simulate the temperature field of uprights under localised fires when the fire source was on the bottom of members. The stability analysis on compression uprights under localised fires was carried out. Because the fire source had an important influence on temperature ...
Taiyuan University of technology 2020,51(01): REN Chong, ZHANG Peng, DAI Liusi. ;PDFviewed：abstract
Optimization analysis of Large Span Cantilever Steel Structure in Taiyuan Botanical Garden
The main entrance building in Taiyuan Botanical Garden is a large-span cantilever steel structure with novel appearance, but the mechanical behavior of the structure is complicated. In this paper, the optimization of the components with low stress and large size in the previously designed structure was conducted, and the analysis of the optimized structure was conducted using MIDAS/Gen software. The results showed that the stress and deformation of the structure can still meet the requirement of ...
Taiyuan University of technology 2020,51(01): QIU Bin, YANG Huiwei, LEI Honggang, JIAO Jinfeng. ;PDFviewed：abstract
Numerical Simulation of Tracer Transport Process in Water Model of Gas-stirred Ladle
Focused on the water model of ladle, a numerical simulation was carried out to calculate the transport process of two groups and three types of tracer(mathematical tracer: passive scalar; physical tracer: pure water tracer and KCl solution tracer) in flow field. The results show that the transport principle of passive scalar and pure water tracer is basically the same. Compared with passive scalar and pure water tracer, denser KCl solution tracer exhibit different transport process as follows: it...
Taiyuan University of technology 2020,51(01): ZHANG Dan, CHEN Chao, ZHANG Yuxing, WANG Shebin. ;PDFviewed：abstract
Effect of Low-temperature Electron Transport Layers on Device Performance of Perovskite Solar Cells
In this work, perovskite solar cells based on three low-temperature electron transport layers(namely, TiO2, ZnO and SnO2) were prepared using identical perovskite deposition method in order to compare their performance directly, and the possible causes of the performance differences were analyzed from the point of view of film morphology, optical and electrical properties. The results show that the SnO2-based perovskite solar cell exhibits the highest power conversion efficiency(PCE=14.74%) compa...
Taiyuan University of technology 2020,51(01): ZHANG Caifeng, GAO Wenhui, SHAO Zhimeng, ZHANG Yong, ZHENG Lulu, ZHANG Hua, ZHAI Guangmei. ;PDFviewed：abstract
Effect of Installation of Apex Cone on Flow Field and Performance in Cyclone Separator
The precession vortex core weakens the trapping efficiency of cyclone to fine particles. In this paper, numerical simulation method was used to investigate the influence of apex cone placed at the dust outlet on the flow field and performance of cyclone. First, the influence of apex cone on the velocity distribution, shortcircuit flow and vortex cone procession characteristics in cyclone separator was analyzed. On this basis, the trapping efficiency for 1 μm particles and the proportion of parti...
Taiyuan University of technology 2020,51(01): SHEN Cong, DONG Zhenzhou, WANG Jiayin, YANG Jingxuan, HAO Xiaogang. ;PDFviewed：abstract
Electrochemical and Mechanical Behavior of Copper Current Collector of Lithium Ion Battery Negative
Sb nanoparticle @polypyrrole network structure anode material was fabricated by chemical reduction method combined with polypyrrole soft template method, the structure of Cu substrate and its mechanical behavior after different temperature cycles were studied. The results show that as the number of cycles increases, the thickness of Cu substrate powdered layer increases. After 50 cycles at 0 ℃ and 60 ℃, the Youngs modulus and hardness of the Cu substrate are significantly lower than those of or...
Taiyuan University of technology 2020,51(01): LIU Xiao, WANG Zhihua, QIAO Lia, GUO Meiqing. ;PDFviewed：abstract
Numerical Study on In-situ Injecting Superheated Steam Thermal Recovery of Transversely Isotropic Oi
Oil shale can be regarded as a transversely isotropic material, which shows strong anisotropy in thermal conductivity, thermal expansion coefficient, elastic modulus and permeability. A transversely isotropic thermo-hydraulic-mechanical coupling mathematical model was established, combined with the anisotropic physical and mechanical parameters of oil shale obtained under high temperature. The results show that, the distribution of temperature field in oil shale reservoir is closely related to th...
Taiyuan University of technology 2020,51(01): WANG Guoying, YANG Dong, KANG Zhiqin, LYU Yiqing. ;PDFviewed：abstract
Study of Commercial Quantification of Historical District Based on the Principal Components Analysis
It is an important means to make the protective use of historical district through business model. Located in the southeast area of Xian, the Sanxue historical district is one of the most typical and representative historical district in China, and it is also one of the most mature historical areas of tourism commercial development. From the perspective of the activity population and the analysis of principal components analysis(PCA), the influence weight of the influencing factors on the degree ...
Taiyuan University of technology 2020,51(01): LI Xinpeng, SI Jie, LI Jinsheng, XUE Jingyu. ;PDFviewed：abstract
Parameters Study on Initial Motion State of Chinese Traditional Timber Structure Under Horizontal Ac
In order to study the dynamic response of traditional timber structures, the timber frame was simplified into a planar frame model, the four initial motion states under horizontal earthquakes were analyzed and the effects of aspect ratio, mass ratio and friction coefficient on initial motion state were investigated. The results show that under horizontal earthquakes, the timber frame has four initial motion states: rest, slip, rock and slip-rock; The influencing factors of the initial motion stat...
Taiyuan University of technology 2020,51(01): WAN Jia, MENG Xianjie, WEI Jianwei, LI Tieying. ;PDFviewed：abstract
Solution of Micro-doppler Frequency of Wind Turbine Blades and its Influence Factors
Accurately obtaining the micro-Doppler frequency generated by the rotating blade of wind turbine is a key step to solve the electromagnetic interference of wind farm to radar station. Aiming at the hypothesis defect of existing scattering-point integral algorithm, we introduced the concept of scattering center from the theory of high frequency electromagnetic scattering, and proposed an idea of solving the micro-Doppler frequency from the scattering centers of the blade. According to the generati...
Taiyuan University of technology 2020,51(01): TANG Bo, CHEN Hao, HUANG Li, YUAN Fating, FENG Peng, LI Yaowei. ;PDFviewed：abstract
Sensorless Control of Permanent Magnet Synchronous Motor with Improved Sliding Mode Observer
Traditional sliding mode observer causes high-frequency chattering phenomenon in the system owing to the discontinuity of sign function at zero point, and introduces a low-pass filter to convert the obtained discontinuous back electromotive force estimation value into a continuous back electromotive force estimation value with a certain phase delay phenomenon. Aiming at the above phenomena, this paper proposed a type of improved sliding mode observer. Based on the saturation function instead of s...
Taiyuan University of technology 2020,51(01): WANG Lin, LI Junwei, MA Yan, KAN Huiyu, SUN Binbin, GAO Song, WANG Dong. ;PDFviewed：abstract
Simulation Research on Hydraulics Properties of Shallow Flow on Loessal Soil Slope in Western Shanxi
In order to study the hydraulics parameters for representative Loessal soil slope in western Shanxi province, and reveal the hydrodynamic mechanism of erosion and sediment yield by slope shallow overland flow under indoor artificial rainfall simulation, five slope lengths(1,2,3,4,5 m) with 4 rainfall intensities(30,60,80,125 mm/h) were used under a specific slope(20). Reynolds number, Froude number, flow velocity, runoff depth and runoff shear stress were measured and analyzed. Results indicated ...
Taiyuan University of technology 2020,51(01): ZHANG Huadong, LI Jinfeng, FU Xingtao. ;PDFviewed：abstract
Real-time Defect Detection Algorithm for Polarizer Based on Deep Learning
Online detection and analysis of polarizer quality can be completed by image processing technology. The existing methods based on deep learning can ensure the accuracy of classification, but the detection speed is slow and the model occupies a large amount of memory, thus difficult to meet the real-time requirements of online detection system. In order to solve these problems, a real-time polarizer defect detection algorithm based on deep learning was proposed. First, a new parallel module was de...
Taiyuan University of technology 2020,51(01): LIU Ruizhen, SUN Zhiyi, WANG Anhong, YANG Kai, WANG Yin, SUN Qianlai. ;PDFviewed：abstract
Research of Stock Index Tracking Based on Adaptive Lasso
Adaptive Lasso, which is often used in variable selection on high-dimension data was used for index tracking, and LQA algorithm was adopted to solve Adaptive Lasso problem, thus providing a new approach to build a portfolio tracking index. The empirical results show that using this method to build portfolio to track the CSI 300 index can obtain a small tracking error with impressive predictive ability and very short calculation time, thus proving the practicability of this method....
Taiyuan University of technology 2020,51(01): HOU Hongwei, XIE Yi. ;PDFviewed：abstract
Building and Analysis of Cell Impedance Response Model Based on Whole Cell RC Circuit
In this paper, the developed model, based on the principle of the entire cell RC circuit, was utilized to probe cell impedance response, so as to reveal the reason that the changes in electrical properties of intracellular components lead to alterations in overall impedance of the system. The results show that the impedance response of the system is highly influenced by alterations in cell membrane capacitance and resistance, cell-cell resistance, cell-electrode resistance. This study provides an...
Taiyuan University of technology 2020,51(01): DU Xiangbin, KONG Jinlong, WANG Kaiqun, HUANG Di, CHEN Weiyi, SHAN Yanhu. ;PDFviewed：abstract
Effect of Mechanical Stretch on the Expression of Aquaporin AQP1 in Human Keratocytes
Mechanical stimulation plays an important role in the process of keratoconus after LASIK. However, the mechanism is still unclear. In this study, the effects of mechanical stretch on the expression of aquaporin 1(AQP1) and its downstream pathways were explored in human keratocytes, which would provide a reference for further elucidating the mechanism of keratoconus. Human keratocytes were subjected to Ca2+ chelator BAPTA treatment, or cyclic mechanical stretch with FLEX-4000. The intracellular Ca...
Taiyuan University of technology 2020,51(01): LEI Xuqin, SUN Yuning, SONG Jie, LI Xiaona, CHEN Weiyi, YANG Jizhong. ;PDFviewed：abstract
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