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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(06)
Research on Precise Design Method For Light-weight Steel Standing Seam Roof System
On the basis of wind tunnel tests and numerical analysis, an effective wind-induced load estimation method at the base to the clips between roof panels and purlins was proposed. Full-scale specimen test and standard tests by single purlin-roof system specimens were conducted to investigate the failure modes of purlins and restraint effect on purlins from the roof system, as well as the influences of various factors on the bending capacity. Calculation formulas were proposed for the rotational and...
Taiyuan University of technology 2019,50(06): LI Yuanqi;ZHOU Haoxue;LUAN Wei;ZHENG Yu;HUANG Lin. ;PDFviewed：abstract
Shear Behavior of Cold-formed Steel Box Girders with Sinusoidal Corrugated Webs and Tubular Flanges
Shear behavior of 4 cold-formed steel box griders with varying shear-to-span ratios, fabricated by sinusoidal corrugated webs and tubular flanges, was experimentally and numerically studied in this paper. Shear tests were carried out to acquire shear resistances, failure modes and load versus displacement curves, and numerical simulations were conducted using finite element(FE) software package ABAQUS. The results show that the failure of tested griders under shear was triggered by the screw conn...
Taiyuan University of technology 2019,50(06): WU Yangwei;YUAN Huanxin;DU Yushan;CAI Kangyi;DU Xinxi. ;PDFviewed：abstract
Experimental Study on Seismic Performance of Cold-Formed Steel Shear Wall Using Corrugated Steel She
To improve the ductility of the wall, four full-scale cold-formed steel shear wall specimens using corrugated steel sheathing with slits were tested under monotonic loading and cyclic loading. The effects of loading method, wall aspect ratio and opennings on the seismic performance of the shear wall were investigated. The bearing capacity, stiffness, ductility and energy dissipation of all wall specimens were obtained. The results indicate that: the influence of loading mode on the shear strength...
Taiyuan University of technology 2019,50(06): ZHANG Wenying;XU Xiangzhi;YU Cheng. ;PDFviewed：abstract
Direct Strength Method for Cold-formed Steel Channel Flexural Members with Web Holes
Direct Strength Method is an effective design method for predicting bearing capacities of cold-formed steel flexural members, in which two primary buckling failure modes, distortional buckling and local-global buckling interaction, are taken into account. The calculation process is simple relatively, which endows it with strong applicability, wide application range and broad prospect for development. In order to further improve the DSM capacity design formulas of cold-formed steel flexural member...
Taiyuan University of technology 2019,50(06): ZHAO Jinyou;GAO Pan;SUN Kuo;WANG Jun. ;PDFviewed：abstract
Study on Performance of H-shaped Columns with Large Width-thickness Ratios under Transverse Impact
Based on a verified finite element model, numerical model of H columns subjected to lateral impact was established by ABAQUS. The main factors affecting the mechanical properties of components under impact load, such as impact speed, impact quality and impact location, were analyzed. The results show that the increase of impact energy leads to the increase of energy dissipation of steel members; the impact time is mainly determined by impact mass; and the maximum impact force is mainly determined...
Taiyuan University of technology 2019,50(06): LU Guoyun;CHEN Pengcheng. ;PDFviewed：abstract
Research Status and Prospect of Cold-Formed Steel Corrossion
In this paper, the research status of steel corrosion was summarized from four aspects of corrosion mechanism, characterization method of corrosion degree, corrosion surface morphology and the effect of corrosion on mechanical properties of steel. Then the research status of the calculation methods for the stability bearing capacity of cold-formed thin-walled steel was analyzed. Finally, the corrosion research of cold-formed steel was prospected from two aspects of material and structure....
Taiyuan University of technology 2019,50(06): NIE Biao;XU Shanhua. ;PDFviewed：abstract
Experimental Study on Constant Amplitude Fatigue of M24 High-strength Bolts under Critical Stress Ra
In this paper, 3 static tensile tests and 15 axial ‘tension-tension’ constant-amplitude fatigue tests under the critical stress ratio(R=0.8) for the 8.8 grade M24 bolts with the material of 35 K were carried out. S-N curves were fitted, macroscopic and microscopic analyses were conducted for fatigue fracture of typical specimens and all the test results were compared with the calculation results based on relevant formulas given in Chinese national standard GB 50017-2017. The conclusions are as ...
Taiyuan University of technology 2019,50(06): JIAO Jinfeng;JIA Pengpeng;LIU Yong;LIU Jianqiu;LEI Honggang. ;PDFviewed：abstract
DFT Study of Methanol Decomposition Catalyzed by Ru-modified Carbon Nanotubes
The decomposition mechanism of methanol was investigated by calculating the adsorption energy, activation energy and rate constants involved in all elementary reactions of methanol decomposition on Ru/CNTs surface by density functional theory using VASP. According to the adsorption energy, the optimal adsorption sites of each species were determined, the optimal adsorption site of COH, CH and C is br1 and that of other species is T1. There are three possible reaction pathways in methanol initial ...
Taiyuan University of technology 2019,50(06): REN Ruipeng;LI Yun. ;PDFviewed：abstract
CFD Study of Flow Pattern in Conical Downers
Conical downer, which is expected to replace conventional cylindrical downer as pyrolyzer, was proposed to address the issue of low solid holdup. Through computational fluid dynamics(CFD) simulation, the effects of solids flux, density and diameter on the radial and axial flow behaviors in conical downers were systematically investigated. The results show that, high solid flux and low particle density are beneficial for the enhancement of solids holdup and can strengthen the effect of solids phas...
Taiyuan University of technology 2019,50(06): LIAN Wenhao;PAN Xueer;YANG Jingxuan;ZHANG Zhonglin;HAO Xiaogang. ;PDFviewed：abstract
Study on the Stability of Ni/Biochar Catalyst for Catalytic Steam Reforming of Toluene
In order to study the stability of biochar supported nickel（Ni/BC） catalyst during steam reforming of toluene（model compound of biomass gasification tar）, the 100 h evaluation test was conducted and compared with traditional metal oxides（Ni/ZrO2 and Ni/γ-Al2O3）. The stability of Ni/BC was better than that of Ni/ZrO2, but inferior to that of Ni/γ-Al2O3. Catalysts before and after reactions were characterized using thermogravimetry（TG）, X-ray diffraction（XRD） and transmission electron m...
Taiyuan University of technology 2019,50(06): DU Zhenyi;XU Chen;ZHANG Zhihua. ;PDFviewed：abstract
Study on CH4/N2 Adsorption Separation Performance on Corncob-based Activated Carbon
The adsorption separation of CH4/N2 in coal bed methane has always been one of the difficult problems in the pressure swing adsorption separation, and the preparation of high-performance adsorbents is the key to solve this problem. Corncob-based activated carbon was prepared by one-step chemical activation using KOH as activating reagent. The influences of active temperatures on pore structure, surface properties and CH4/N2 separation performance of corncob-based activated carbon were investigate...
Taiyuan University of technology 2019,50(06): QI Jinshan;CHENG Wenping;CUI Xingyu;MA Jinghong;LI Ruifeng. ;PDFviewed：abstract
Electrocatalytic Oxidation of Methanol on Amorphous Ni-B-M (M=Cr, Cu) Nanoparticles
Amorphous Ni-B, Ni-B-Cr, and Ni-B-Cu nanoparticles were prepared by chemical reduction, and the structures, compositions and valences of the catalysts were measured by XRD, TEM and XPS. The experiment results of cyclic voltammetry(CV), chronoamperometry(CA) and electrochemical impedance spectroscopy(EIS) show that the methanol oxidation peak current on Ni-B-Cr nanoparticle was comparable to that on Ni-B nanoparticle, and the activity stability was improved. Meanwhile, the methanol oxidation peak ...
Taiyuan University of technology 2019,50(06): WU Fanhua;ZHANG Zhonglin;LI Yu;LIU Lixue;DUAN Donghong;LIU Shibin;YUAN Qinbo;WANG Enzhi;HAO Xiaogang. ;PDFviewed：abstract
Research on Effects of Atmospheric and Sub-atmospheric Distillation on the Removal of Toxic Polycycl
In order to remove 16 EPA priority polycyclic aromatic hydrocarbons(PAHs) in coal tar pitch fetched from a factory in Shanxi, the distillation technique under atmospheric and vacuum pressure was used. The composition and content of the PAHs in the distillation residues and their water-soluble components were determined by gas chromatography(GC). The results show that the distillation technique under atmospheric and vacuum pressure was capable of completely removing PAHs with 2-3 rings at 425 ℃, ...
Taiyuan University of technology 2019,50(06): LIU Xiaoliang;LIU Gang;WANG Yugao;SHEN Jun;NIU Yanxia;LI Ruifeng;DU Jiankui;YANG Zhifeng;XU Qingbai. ;PDFviewed：abstract
Preparation and Luminescence Properties of Eu（TTA）2（phen） MAA/PVA Nanocomposite Fibers
In this paper, the self-made complex Eu（TTA）2（phen）MAA was dispersed into polyvinyl alcohol（PVA）, and then one-dimensional fluorescent nano fiber composite Eu（TTA）2（phen）MAA/PVA was prepared by electrospinning technology. The microstructure of the fibers was characterized by SEM. The results show that the composite fibers have smooth surface, and an average diameter of about 150 nm. IR and UV-Vis measurements confirm that the complex Eu（TTA）2（phen）MAA is uniformly dispersed in Eu（T...
Taiyuan University of technology 2019,50(06): ZHANG Aiqin;WANG Zhi;XU Wei;WANG Yongchao;JIA Husheng. ;PDFviewed：abstract
Effect of Graphene Powder on Microstructure and Properties of Magnesium Matrix Composites
The combination of mechanical alloying and Field Actived and Pressure Assited Synthesis(FAPAS) was used to prepare pure Mg and powdered graphene/Mg(GNPs/Mg) composites. The effects of powdered graphene on the microstructure and properties of aluminum matrix composites were investigated. A high differential charge density and a strong hybrid and covalent interaction between C atom and the Mg atom of Mg(100) plane reduced the preparation defects of the matrix material, improved the interfacial bond...
Taiyuan University of technology 2019,50(06): WANG Jian;LIN Wanming;CHEN Shaoping;CHEN Jin;MENG Xiaoyue;DING Cong. ;PDFviewed：abstract
Research on the Influence of Polyurethane Filling and TUP Dust-proof Membrane on the Performance of
In view of the disadvantage of poor weather resistance of current sound barrier, this paper used polyurethane filling as alternative filling. It not only improved the weather resistance, but also ensured the sound absorption coefficient and sound insulation of the barrier. At the same time, TUP dust-proof membrane was used to improve the sound absorption coefficient. This work is a breakthrough in acoustic performance research of high-speed railway sound barrier, has great reference value for stu...
Taiyuan University of technology 2019,50(06): LEI Yibin;SHANG Ruihua. ;PDFviewed：abstract
Study on Borehole Deformation and Damage in Hot Dry Rock Based on Viscoelastic Theory
The instability of wellbore surrounding rock is a universal technical problem during the deep drilling in hot dry rock geothermal. Aiming at the geological structure that geothermal geology exploration hole revealed in Gonghe Basin, Qinghai province, we derived the discriminant formula of damage and failure of wellbore surrounding rock under three-dimensional stress on the basis of viscoelastic theory. Using finite element software COMSOL to carry out numerical experiments, we investigated the de...
Taiyuan University of technology 2019,50(06): XI Baoping;LI Xiaoxue;WANG Lei;XIONG Guiming;HE Shuixin;CHENG Zepeng. ;PDFviewed：abstract
Fault Diagnosis of Rolling Bearing Based on Laplacian Score and Whale Optimization Algorithms Optimi
The vibration signal of rolling bearing often presents non-Gaussian and non-linear character, which makes it difficult to identify fault type and severity accurately. An intelligent fault diagnosis method based on Laplacian Score(LS) and Whale Optimization Algorithms(WOA) optimized Support Vector Machine(WOASVM) was proposed. First, the statistical features of original vibration signal in time domain, frequency domain and time-frequency domain are extracted, and the more sensitive and more repres...
Taiyuan University of technology 2019,50(06): BAI Lili;HAN Zhennan;REN Jiajun;QIN Xiaofeng. ;PDFviewed：abstract
Enhancing Intergroup Chaos Synchronization by Asymmetric Coupling in a Laser Diode Ring
Enhancement of intergroup synchronization in a ring configuration constructed by four chaotic laser diodes(LDs) was numerically demonstrated in this paper. These four LDs are divided into two groups, each of which consists of two non-adjacent lasers with the same optical frequency(wavelength). Their intergroup synchronization performances under symmetric and asymmetric coupling structures were studied. Results indicate that the intergroup synchronization coefficient(SC) in the symmetric structure...
Taiyuan University of technology 2019,50(06): LI Lan;ZHAO Xiaodan;WU Min;WANG Longsheng;YANG Yibiao. ;PDFviewed：abstract
Design of an ASIC TRNG Using 0.35 μm CMOS Technology
A chaotic true random number generator based on hybrid Boolean network was proposed. The entropy source is composed of an 18-node autonomous Boolean network, which is used to generate Boolean chaotic with high amplitude(～3 V) and large bandwidth(～780 MHz). The Boolean chaos is sampled and quantized by using a synchronous Boolean network, and finally a real random number with a real-time rate of 100 Mbps is generated. At the same time, the ASIC chip design of the true random data generator was c...
Taiyuan University of technology 2019,50(06): HOU Erlin;ZHU Xiang;FENG Chunyi;ZHANG Jianguo;WANG Yuncai. ;PDFviewed：abstract

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