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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> 2019,50(03)

Study on Permeability Evolution of Tight Coal Under Different Stress and Pore Pressure Conditions

The coal permeability is very complex with significant stress sensitivity. A self-developed constant temperature ultra-low permeability measurement system combined with pulse decay method was used to carry out the gas permeability test on the tight coal in Longfeng coal mine, Guizhou province. The evolution law and influencing factors of permeability were studied systematically. Results show that: under constant hydrostatic pressure, the coal permeability is affected by effective stress and pore ...

Taiyuan University of technology 2019,50(03): LI Kang,YANG Diansen,CHEN Weizhong,WANG Wei,ZHOU Yun,XING Tianhai,ZHENG Youlei. ;

PDFviewed：abstract

Experimental Study on the Law with Permeability of Fushun Oil Shale Under High Temperature and Triax

With the independently developed WYF-I high-temperature and high-pressure pyrolysis reaction device and the Smart perm Ⅲ gas permeability measurement instrument which is developed based on the core column pulse attenuation method, the pyrolysis process and permeability of oil shale samples from Fushun West Open-pit were investigated at a temperature of 20~600 ℃. According to the change of oil shale permeability, the pyrolysis process of the oil shale shows significant phase changes. Stage Ⅰ: 2...

Taiyuan University of technology 2019,50(03): GENG Yide,LIANG Weiguo,LIU Jian,WU Pengfei,ZHAO Jing. ;

PDFviewed：abstract

Study on Vehicle-induced Vibration of Cracked Reinforced Concrete Beams

In order to study the vibration of cracked reinforced concrete beams under the load of moving vehicles more efficiently, a simulation method taking into account of the effect of crack tip closure was presented. And a coupled vibration analysis program of cracked reinforced concrete beam and vehicle load was developed on the basis of the separation analytical method. Finally, a simply supported cracked reinforced concrete beam was analyzed as an example. The results show that under the vehicle loa...

Taiyuan University of technology 2019,50(03): CHEN Xingda,ZHU Jinsong. ;

PDFviewed：abstract

Analysis of Roughness and Granularity of Sandstone Polished Surface in Coal Measure Strata

Choosing the coarse, medium and fine grained sandstone as study object, the surface topography of the polished rock surface was tested by the white light interferometry optical interferometer, and was characterized with roughness and grain size. The mineral composition and pore structure of the samples were measured also. Under the condition of the mineral content of rock samples basically being the same, the relationship between pore structure and surface grain size was analyzed. The experimenta...

Taiyuan University of technology 2019,50(03): HAN Wenmei,YANG Wenbo,LI Jianjun,WU Jinwen. ;

PDFviewed：abstract

Continuous Electrolysis of the Bunsen Reaction Products for Hydrogen Production

The H 2S splitting cycle provides a technical route for the reutilization of the sulfur-containing pollutants in coal to produce high-quality and high-value hydrogen and sulfuric acid. As the critical step of this cycle, Bunsen reaction faces great challenges on the separation and purification of the products, the side reactions, the deposition of iodine vapor, and corrosion. The direct electrolysis of the Bunsen reaction products can avoid the separation of the products and reduce the excessive ...

Taiyuan University of technology 2019,50(03): ZHANG Ke,LI Xiaoling,JIA Xin,WANG Hui,CHANG Liping. ;

PDFviewed：abstract

Molecular Simulation of C2H6 ,CH4 Competitive Adsorption on Kaolinite Surface

In order to elucidate the competitive adsorption mechanism of CH 4 and C 2H 6 in kaolinite, the adsorption capacity, adsorption heat and interaction energy of C 2H 6/CH 4 single-component gas and mixed gas on kaolinite surface were calculated by Monte-Carlo method, and the distribution of adsorption density was also analyzed. The simulation results show that the adsorption quantity of C 2H 6/CH 4 single component gas in kaolinite first increased and then tended to balance, in accordance with the ...

Taiyuan University of technology 2019,50(03): ZHANG,BinKANG Tianhe,KANG Jianting,SONG Zhengping. ;

PDFviewed：abstract

Simultaneous Determination of Isomers of Disubstituted Benzaldehyde Compounds Based on PLS/UV

The calibration model was established for the simultaneous determination of isomers of disubstituted benzaldehyde compounds by partial least squares (PLS) and ultraviolet spectrophotometry. The other substituents of the 10 kinds of benzaldehyde compounds were -CH 3 ,-OCH 3,-OH,-NO 2,-CHO,-OPh,-COOH,-F,-Cl,-Br, respectively. These compounds were showing good additive property and linear relationship in 221~267 nm wavelength range. Their linear correlation coefficient was between 0.990 8 and 0.999 ...

Taiyuan University of technology 2019,50(03): GUO Lei,LI Yujun,LI Yanwei. ;

PDFviewed：abstract

Conditioning of Excess Sludge by Fe2+ Activated Peroxymonosulfate

In this study, the sludge from the sludge concentration tank was used as the research object, and the excess sludge was conditioned by the Fe^2+ activated peroxymonosulfate (HSO5^- PMS) oxidation method. Studied were the effects of Fe^2+/PMS molar ratio, PMS dosage, initial pH, Fe^2+ addition method and temperature on sludge dewatering performance. The results show that the influence degree of each factor on the reduction rate of SRF was: PMS dosage>pH value>Fe^2+/HSO5^- molar ratio;The bes...

Taiyuan University of technology 2019,50(03): YANG Lijun,SONG Xiulan,ZHANG Miao. ;

PDFviewed：abstract

Studies on the Degradation of Gaseous Xylene in Closed-cycle System by Using TiO2/ACF

Using AlPO 4 as binding agent, TiO2/ACF filters were prepared by adhesive method. The properties of TiO2/ACF were investigated by means of XRD and BET. Closed-cycle experiment system was set up. Gaseous xylene was selected as the model pollutant and adsorption-photocatalytic degradation was proceeded in the system. Influences of initial concentration, face velocity and relative humidity on the degradation results were studied. The results show that nano-TiO2 particles were well loaded on the surf...

Taiyuan University of technology 2019,50(03): ZHANG Xinghui,DU Yaru,ZHANG Xingfang,FANG Xuanzheng. ;

PDFviewed：abstract

Co-doped Molybdenum Disulfide Nanosheets for Enhanced Electrocatalytic Oxygen Evolution

In recent years, molybdenum disulfide (MoS2) nanosheets have become a potential catalyst favored by researchers. However, the oxygen evolution reaction (OER) performance of pure MoS2 nanosheets is very limited. In this paper, a series of cobalt-doped molybdenum sulfide (MoS2-Co) nanosheets were synthesized by microwave assisted heating method. The structure was characterized by XRD and XPS, and the morphology was characterized by SEM and TEM. Then the OER of these samples was further characterize...

Taiyuan University of technology 2019,50(03): WEI Bingwei,SHEN Yongqing,ZHAO Min,ZHANG Hua. ;

PDFviewed：abstract

Influence of Welding Parameters Under the Same Heat Input on Microstructure in Weld Joints of SUH409

In order to study the influence of welding speed under the same heat input on microstructure of ferritic stainless steel, SUH409L plates were welded with 9 different welding speeds under the same heat input using TIG welding. The microstructure and properties of welding joints were tested by means of confocal microscope and hardness tester. The results show that the heat input and heat dissipation of weld influencd the size of weld pool and the microstructure of weld. When the heat input was set ...

Taiyuan University of technology 2019,50(03): XU Shufeng,XU Fanghong,LIU Yang,LIANG Minzheng. ;

PDFviewed：abstract

Effects of Injection Strategy on the Performance of a Common Rail Diesel Engine

In order to improve the performance of the common rail engine by optimizing the injection parameters, the effects of different injection strategies on the diesel engine were examined on a YN33CRD1 diesel engine. The engine was operated at a typical condition of 2000r/min-50% load, fueled with F-T diesel. Results show that when the injection pressure increased from 62.8 to 143.8 MPa, ignition time advanced by 7CA, ignition delay period was shortened by 30.2%, SOOT, HC and CO emissions were reduce ...

Taiyuan University of technology 2019,50(03): SHI Jinhong,WANG Tie,ZHANG Zhengwu,YANG Tiantian. ;

PDFviewed：abstract

Research on Determining Defects in CFRP Grinding Surface by Micro- Vision Based on Region Growth Alg

Aimed at the problem of judging the surface defects of carbon fiber reinforced plastic (CFRP) after machined, a method of judging the proportion of surface defects in grinding of CFRP based on microscopic vision was proposed in this paper. The method uses image processing technology to analyze the micro-imaging of grinding surface of CFRP, which is based on region growing algorithm, extracts and calculates the delamination defects and fiber intermittent damage defects formed on grinding surface o...

Taiyuan University of technology 2019,50(03): XIE Penghua,LYU Ming. ;

PDFviewed：abstract

Theoretical Research and Analysis of Balanced Weight System of Full Hydraulic Rolling Shear Servo Cy

The sealing problem of horizontal heavy duty cylinders has always been a difficult part of component design. The heavy-duty servo cylinder on the full hydraulic hobbing shear needs horizontal hinge installation, which outputs accurate curve displacement for the hobbing shear. This will cause damaged sealing structure, cylinder scuffing, oil leakage and other problems, resulting in insufficient output force. Aimed at the sealing problem of the horizontal heavy-duty cylinder, this paper added a new...

Taiyuan University of technology 2019,50(03): MA Linan,ZHAO Xiaodong,ZHANG Wenze,MA Lifeng,WANG Tao. ;

PDFviewed：abstract

Dynamic Characteristics of Hoist Under Emergency Braking Condition

Aimed at the problems of vibration impact and slippage in the braking process of mine hoist, the rigid-flexible coupling dynamic simulation model of the floor-type friction hoist was established by using ANSYS and RecurDyn software, and the vibration signal test system of cage was built to verify the simulation model. The phenomenon of moment transfer delay caused by the flexible characteristics of the wire rope during constant deceleration braking was analyzed by simulation. The effects of lifti...

Taiyuan University of technology 2019,50(03): YU Pei,ZHAO Bin,HUANG Jiahai,LUO Caixiu. ;

PDFviewed：abstract

Soft Sensor of Ball Mill Load Parameters Based on Semi-supervised Domain Adaptive Fuzzy Inference

Aimed at the model mismatch problem caused by difference of data distribution after the change of working conditions and the influence of uncertain vibration signal when ball mill is running, a semi-supervised domain adaptation fuzzy inference method was researched. The method firstly integrates multiple constraint conditions to find the feature transformation matrix and projects the tested and historical data to the public sub-space. Then, the projected historical data is divided using fuzzy C-m...

Taiyuan University of technology 2019,50(03): LI Sisi,DU Yonggui,YAN Fei,YAN Gaowei. ;

PDFviewed：abstract

Measurement System of Instantaneous Velocity of the Piped Carriage Based on Electromagnetic Method

In order to solve the measurement problem of instantaneous velocity of the piped hydraulic transportation of tube, contained raw material, the new electromagnetic measurement method was put forward, and the method was analyzed theoretically. The measurement system of instantaneous velocity of the piped carriage based on ARM controller as the core was designed. The system included electromagnetic receiving, signal conditioning circuit, upper computer receiving software and database. The velocity m...

Taiyuan University of technology 2019,50(03): LI Fei,SUN Xihuan. ;

PDFviewed：abstract

Research on Community Discovery Method of Content Similarity of Micro-blog

The community found in micro-blog has important research significance in personalized recommendation, micro-blog marketing, public opinion monitoring and so on. In view of the accuracy and utility of the existing micro-blog community, an efficient micro-blog community discovery algorithm based on user content similarity was proposed. This paper first analyzed the user interest model of micro-blog, and then excavated micro-blog opinion leaders, and finally clustered the interest groups of opinion ...

Taiyuan University of technology 2019,50(03): WANG Gaofei,ZHANG Yueqin,CHEN Jian. ;

PDFviewed：abstract

Calculation Analysis of Tensegrity with Different Spreading Degree of Cells

To study the effect of cytoskeleton (CSK) with different spreading degrees on substrate and the role of Intermediate filament (IF), a new tensegrity model considering the IF was proposed to simulate CSK of different spreading degrees. First, the vertex coordinates and the centroid positions of the tensegrity of different spreading states were calculated. Then, tensegrity models under displacement loads were established by using the finite element method. Larger spreading degree of CSK resulted in...

Taiyuan University of technology 2019,50(03): WANG Lili,CHEN Weiyi. ;

PDFviewed：abstract

Numerical Simulation on Mechanical Properties of 3D-Printing TPMS Cellular Material

On the basis of the triply periodic minimal surfaces (TPMS), some gyroid unit cell models with different relative volume percentages and the corresponding topology models were designed. The mechanical responses under different impact velocity were calculated through finite element simulation software. In addition, the stress distribution, force-distance curves, load-bearing capacity and energy absorption efficiency were analyzed and discussed. The numerical simulation results demonstrate that the...

Taiyuan University of technology 2019,50(03): LI Xinyuan，SONG Weidong，CHEN Jian. ;

PDFviewed：abstract