• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database

2020 Vol. 55, No. 3

Display Method:
Structural Nonlinear Damage Identification Based on Autoregressive Conditional Heteroskedasticity Conversion Index
GUO Huiyong, WANG Zhihua, LI Zhengliang
2020, 55(3): 459-466, 517. doi: 10.3969/j.issn.0258-2724.20180316
Abstract:
To solve the identification problem of time-domain nonlinear damage, the incorporation of an autoregressive conditional heteroskedasticity (ARCH) model with damage detection was proposed. First, the basic theory of ARCH model was described, and the order estimation and maximum likelihood parameter e...
Multi-level Semantic Retrieval Method for Landslide Disaster Data
ZHU Qing, LI Maosu, DING Yulin, FENG Bin, ZHANG Junxiao, CAO Zhenyu, QIU Linyao, YIN Hao
2020, 55(3): 467-475. doi: 10.3969/j.issn.0258-2724.20180695
Abstract:
How to quickly and accurately find the superior information to meet the needs of disaster assessment tasks in massive spatio-temporal big data of landslide hazards is the key basis for comprehensive disaster reduction and disaster relief. The traditional disaster data retrieval is mainly based on th...
Homogeneous Generalized Yield Function for Frame Members with Box Section
YANG Lufeng, SONG Shasha, XIE Weiwei, ZHANG Wei
2020, 55(3): 476-484. doi: 10.3969/j.issn.0258-2724.20180754
Abstract:
In order to overcome limitations of the traditional generalized yield function (GYF), a homogeneous generalized yield function (HGYF) is proposed for box sections, which is insensitive to sectional geometry of box sections and applicable for plane and spatial frame structures; and a linear-elastic i...
Discontinuous Deformation Analysis Method for Deformation Response of Hidden Resources in Collapse Area under Blasting Excavation
XU Hai, LUO Zhouquan, WEN Lei, QIN Yaguang
2020, 55(3): 485-494. doi: 10.3969/j.issn.0258-2724.20190033
Abstract:
Aiming at the safety problem of hidden resources mining in collapse area of underground metal mines, the discontinuous deformation analysis (DDA) is used to address the deformation response of hidden resources in collapse area under blasting dynamic load. The calculation process of DDA method is sta...
Random Walking Crowd Model Considering Pedestrian Synchronization Rate
CAO Lilin, CAO Dong, YU Guojun, LI Aiqun
2020, 55(3): 495-501. doi: 10.3969/j.issn.0258-2724.20180656
Abstract:
In order to study the influence of walking crowd synergy on the human-induced vibration of structures, the vertical vibration of a footbridge under the action of walking crowd was analyzed using the random walking crowd model considering pedestrian synchronization rate. Firstly, a random walking cro...
Thermo-Elastic Vibration Analysis of Functionally Graded Material Pipes in Elastic Matrix
TONG Guojun, LIU Yongshou, WANG Yingchao
2020, 55(3): 502-508. doi: 10.3969/j.issn.0258-2724.20180287
Abstract:
In order to investigate the fluid-structure coupled vibration problems of functionally graded material (FGM) fluid conveying pipes embedded in elastic matrix. Firstly, the vibration control equation of the FGM pipe was derived according to Euler-beam model theory. Then, the differential quadrature m...
Characteristics Analysis of Soil Arching Effect Behind Pile Based on Transparent Soil Technology
CHEN Qiang, DONG Guicheng, WANG Chao, ZHU Baolong, ZHAO Xiaoyan
2020, 55(3): 509-517. doi: 10.3969/j.issn.0258-2724.20190744
Abstract:
In order to study the characteristics and evolution process of soil arching effect behind a circular pile, an experimental study on pile-soil interaction based on the transparent soil technology was carried out from a microscopic perspective. Firstly, the tests as to transparent soil ratio were carr...
Crack Detection of 3D Asphalt Pavement Based on Multi-feature Test
QIU Yanjun, WANG Guolong, YANG Enhui, YU Xiaoli, WANG Chenping
2020, 55(3): 518-524. doi: 10.3969/j.issn.0258-2724.20180270
Abstract:
In order to solve the accuracy problems in the crack detection of 3D asphalt pavement, which are mainly caused by low contrast between cracks and the surrounding area and complex pavement textures, a three-step preprocessing was conducted on original 3D images firstly, including size reducing, inten...
Performance and Application of Adjustable Height Support
WANG Yang, WANG Liangkun, SHI Weixing, LIU Chengqing
2020, 55(3): 525-530. doi: 10.3969/j.issn.0258-2724.20180391
Abstract:
To overcome the defaults of difficult to adjust the height in existing steel supports, an adjustable height support was proposed, whose height could be adjusted in a range, to adapt to the complexity and variability of the site construction conditions, ensure the precision bearing, and improve the w...
Analytical Method for Calculation of Surrounding Rock Pressure of Shallow-Buried and Unsymmetrically Loaded Tunnel Adjacent to Variable Slope
YAN Tao, LI Kunjie, MOU Zhiheng, ZHANG Jiaxin, YU Li, LI Qi, LI Guoqing, PENG Tao
2020, 55(3): 531-536. doi: 10.3969/j.issn.0258-2724.20180825
Abstract:
At present the surrounding rock pressure of shallow-buried and unsymmetrical loading tunnels is generally calculated by code for design of road tunnel. However, when the two portal parts of twin tunnels are not located at the same mileage, one of them will be constructed adjacent to the excavated su...
Numerical Simulation of Wave-Current Forces Acting on Cofferdam for Sea-Crossing Bridge Based on Large Eddy Simulation
KANG Azhen, YIN Ruitao, ZHU Bing, LI Xin, ZHANG Jiawei
2020, 55(3): 537-544, 587. doi: 10.3969/j.issn.0258-2724.20180222
Abstract:
The foundation construction of a sea-crossing bridge may encounter complex sea conditions, such as deep-water, large-wave and rapid-flow conditions. Wave-current forces may even become dominant loads for the cofferdam construction of a sea-crossing bridge. To study wave-current forces acting on coff...
Electromagnetic-Thermal Field Coupling Calculation of Contactless Power Transfer Vehicle
WANG Yanqin, ZHANG Qiumin, LIN Feihong, DONG Liang
2020, 55(3): 545-551. doi: 10.3969/j.issn.0258-2724.20191123
Abstract:
The application of contactless power transfer technology in urban rail transit has attracted more and more attention. However, there are still many problems to be addressed in the practical application of high-power contactless network power supply technology, among which the eddy current heating pr...
Discharge Development and Characteristics of Oil-immersed Pressboard Surface with Different Moisture Contents
WU Guangning, ZHOU Peng, GAO Bo, YU Rui, HU Guangcai
2020, 55(3): 552-560. doi: 10.3969/j.issn.0258-2724.20190210
Abstract:
The increase of moisture content in power transformer will seriously affect the insulation performance of oil-paper, more easily resulting in the surface discharge fault of insulated pressboard. In order to study the discharge characteristics of insulated pressboard with different moisture contents ...
Axial Bearing Capacity of Angle Parallel Reinforcement for High Voltage Transmission Towers
YAO Yao, WANG Lingxu, ZHANG Youjia
2020, 55(3): 561-569. doi: 10.3969/j.issn.0258-2724.20190370
Abstract:
The risk of transmission tower collapse can be effectively controlled by improving the bearing capacity of its local stability. Through the test of six-angle parallel reinforcement under axial compression, a single-angle axial compression test and the analysis of 13 finite element models, the load-d...
Hierarchical Fault Location Method for Distribution Network with Special Load
GAO Fengyang, LI Zhaojun, YUAN Cheng, LI Xiaofeng, QI Xiaodong
2020, 55(3): 570-578. doi: 10.3969/j.issn.0258-2724.20190414
Abstract:
Special load is connected to the distribution network, which enhances the interaction between the power supply, load and power grid, and imposes higher requirements for fault location. To deal with this, a hierarchical location method for fast locating fault points is proposed. Firstly, the incomple...
Application of Hierarchical Extreme Learning Machine in Prediction of Insulator Pollution Degree Using Hyperspectral Images
YANG Gang, LI Hengchao, TAN Bei, SHI Chaoqun, ZHANG Xueqin, GUO Yujun, WU Guangning
2020, 55(3): 579-587. doi: 10.3969/j.issn.0258-2724.20190093
Abstract:
Hyperspectral images possess merging properties of image and spectrum, wide spectral range, and high spectral resolution, which can finely reflect the material microscopic characteristics. To this end, hyperspectral imaging technology is introduced to research the insulator pollution degree in a non...
Extended Unifying Principle of Clause Elimination in First-Order Logic
NING Xinran, XU Yang, HE Xingxing
2020, 55(3): 588-595. doi: 10.3969/j.issn.0258-2724.20180974
Abstract:
Simplifications are indispensable steps of first-order theorem proving, which can enhance the proving efficiency of first-order theorem provers. Set implication modulo resolution, a principle of identifying the redundancy property of clauses, is proposed. The soundness of this principle in first-ord...
Combinatorial Test Sequence Set Reduction Approach for Railway Signaling Safety-Critical Software
RAO Chang, LI Nan, ZHANG Yadong, GUO Jin, LI Yao
2020, 55(3): 596-603. doi: 10.3969/j.issn.0258-2724.20190157
Abstract:
When applying t-way combinatorial test sequence generation to a railway signaling system with large-scale inputs, test redundancy occurs, which causes high execution cost. Thus, a t-way combinatorial test sequence set reduction approach is proposed based on the greedy particle swarm optimization alg...
Multi-objective Matching Optimization for Hybrid Fuel-Cell Power System in Trams
FU Wenchao, QI Hongfeng, DAI Chaohua, LI Mi, LIU Zhengjie, CHEN Weirong
2020, 55(3): 604-611. doi: 10.3969/j.issn.0258-2724.20180370
Abstract:
The hybrid power system configuration in fuel-cell trams greatly affects the vehicle dynamic performance, system efficiency and economic benefit. However, there is a lack of effective configuration optimization methods. To meet the objective of minimizing the cost in a vehicle service cycle, an opti...
Methodologies of Pallet Allocation Over Pallet Pool in Intermodal Transportation Network
REN Jianwei, MENG Xiangdong, CHEN Chunhua, ZHANG Jin, ZHANG Xueyan
2020, 55(3): 612-619. doi: 10.3969/j.issn.0258-2724.20190340
Abstract:
In order to solve the problems in pallet allocation of intermodal transportation network (ITN) over a pallet pool, by the use of non-linear programming, mixed-integer programming, and modified particle swarm optimization (PSO), the pallet allocation system were optimized in the cases of three availa...
Texture Depth Measured Method of Pavement Based on Static and Dynamic Anti-Sliding Characteristics
FENG Xingle, ZHANG Haiou, LI Wei, LIU Yamin, ZHANG Shaoyang
2020, 55(3): 620-627. doi: 10.3969/j.issn.0258-2724.20180282
Abstract:
The slippery surface of asphalt pavement is one of the leading major causes of traffic accidents. The mean texture depth (MTD) reflects the performance of skid resistance using a static texture of the pavement, while the friction coefficient reflects it through dynamic friction motion. Aimed to elim...
Experiments on Material Proportions for Simulating Sandy Layer in Deep Sea
SHEN Xiang, YUAN Dajun, CAO Yutao, GAO Zhenfeng
2020, 55(3): 628-634. doi: 10.3969/j.issn.0258-2724.20180285
Abstract:
In order to obtain the material proportions that can simulate the sandy layer in the deep sea of Qiongzhou Strait, using on the orthogonal experiment method, the physical and mechanical parameters of different material proportions were analyzed with four control factors of barite powder/standard san...
Mechanism and Kinetic Analysis on Degradation of Atrazine by UV/PS
LU Yixin, HE Yue, ZHANG Jianqiang, FU Chenchen, CHEN Jiao
2020, 55(3): 635-642, 680. doi: 10.3969/j.issn.0258-2724.20180523
Abstract:
In order to deal with water pollution caused by atrazine (ATZ), the effects, mechanism, kinetics and pathway of ATZ degradation by ultraviolet/peroxodisulfate (UV/PS) were explored in terms of pH, UV intensity, PS concentration and temperature. The analysis of degradation mechanism indicates that UV...
Experiments on Mechanical Performance of Tibetan Rubble Stone Walls Retrofitted with BFRP Grids
HUANG Hui, YANG Dan, CHEN Ke, JIA Bin
2020, 55(3): 643-649. doi: 10.3969/j.issn.0258-2724.20180455
Abstract:
Two groups of Tibetan rubble stone walls, each with four pieces, were tested under compressive loading and low cyclic loading, respectively, in order to study the mechanical performance of the walls retrofitted with basalt fiber reinforced polymer (BFRP) grids. These tests focus on the mechanical be...
Formation Mechanisim of Rail Corrugation Occurring on Tight Curved Track with Vanguard Fasteners
WU Bowen, CHEN Guangxiong, ZHAO Xiaonan, ZHU Qi, KANG Xi
2020, 55(3): 650-657. doi: 10.3969/j.issn.0258-2724.20180371
Abstract:
In order to study the formation mechanism and countermeasures of the rail corrugation on a tight curved track with vanguard fasteners. First, a self-excited vibration finite element model consisted of the leading wheelset and the track system was established based on the viewpoint of friction-induce...
Influences of Foreign Object Damage on Fatigue Strength of 25CrMo4 Axle Alloy Steel
WU Shengchuan, XU Zhongwei, KANG Guozheng, HE Weifeng, DAI guangze
2020, 55(3): 658-663. doi: 10.3969/j.issn.0258-2724.20180308
Abstract:
To study the correlation between the foreign object damage (FOD) and the fatigue strengh of alloy steel 25CrMo4, the simulated test for FOD of high speed railway axle steel specimens was carried out by a compressed-gas gun device. Firstly, the FOD defects were simulated on railway axle steel specime...
Bionic Design Method for Crane Box Girder Wind Load Reduction Based on Ostracion-Cubicus
WANG Yupu, CHENG Wenming, DU Run, WANG Shubiao, DENG Yong
2020, 55(3): 664-671. doi: 10.3969/j.issn.0258-2724.20190085
Abstract:
The wind load is an important load during the gantry crane operation, and the crane box girder is the major windshield component . Therefore the wind load reduction design for the crane box girder can decrease the crane energy consumption effectively. The bionic design method for the crane box girde...
Penalty Parameter Selection Method for Variational Mode Decomposition and Time-Varying System Identification
JIN Hang, LIN Jianhui, CHEN Xieqi
2020, 55(3): 672-680. doi: 10.3969/j.issn.0258-2724.20190357
Abstract:
As the penalty parameter in the variational mode decomposition (VMD) affects the decomposition performance, a penalty parameter selection method is proposed on the basis of data driven. The method firstly determines the penalty parameter at the main peak by using the Fourier transform. Then the mode...