• 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. 2

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Smoothness Estimation of Super-large Bridges in Railway Line Based on Fitting Railway Plane and Profile
WANG Ping, GAO Tianci, WANG Xin, YANG Cuiping, WANG Yuan
2020, 55(2): 231-237, 272. doi: 10.3969/j.issn.0258-2724.20180295
[Abstract](782) [FullText HTML] (553) PDF 1112KB(84)
Abstract:
Reasonable evaluation of the flexural deformation of long-span bridges is the basic precondition of guaranteeing service stability and comfort of trains. Considering the limitations of the current evaluation index, the deflection-span ratio, such as the effects of deflection on railway plane and pro...
Static Behavior and Key Influencing Factors of Double-Cable Suspension Bridge
ZHANG Qinghua, ZHANG Ying, CHENG Zhenyu, KANG Jiping, HE Jing
2020, 55(2): 238-246. doi: 10.3969/j.issn.0258-2724.20170908
[Abstract](729) [FullText HTML] (378) PDF 1133KB(26)
Abstract:
Double-cable suspension bridge system is one of structural systems suitable for long-span multi-tower suspension bridges. In order to study the mechanical properties of the bridge system, the finite element method is used to analyze its static behavior and the effect of key design parameters. First,...
Direct Identification of Coefficients of Rational Function Approximation for Self-Excited Aerodynamic Forces
WU Bo, WANG Qi, LIAO Haili, LI Yulin
2020, 55(2): 247-255. doi: 10.3969/j.issn.0258-2724.20180593
[Abstract](628) [FullText HTML] (393) PDF 840KB(27)
Abstract:
The identification of coefficients of a rational function is the precondition for flutter analysis of long-span bridges based on rational function approximation. The number of lag terms of rational functions has a large influence on the identification accuracy. The coefficient identification of rati...
Influence of Thermal Conductivity on Temporal and Spatial Distributions of Temperature Filed in Cold Region Tunnel
SUN Keguo, LI Si, XU Weiping, XIAO Zhifei, LI Haobo, XU Yuping
2020, 55(2): 256-264, 289. doi: 10.3969/j.issn.0258-2724.20180530
[Abstract](855) [FullText HTML] (648) PDF 2018KB(23)
Abstract:
The temperature field of a tunnel in cold region is crucial to its antifreezing design, and the thermal conductivity of the supporting structure and surrounding rock has a significant effect on the temporal and spatial distributions of the temperature field. Taking a highway tunnel in cold region as...
Lining and Surrounding Rock in Non-circular Tunnel Based on Complex Variable Method
LI Yansong, CHEN Shougen
2020, 55(2): 265-272. doi: 10.3969/j.issn.0258-2724.20180243
[Abstract](675) [FullText HTML] (356) PDF 1257KB(35)
Abstract:
A complex variable method is presented of stress and displacement problems for a non-circular deep tunnel with a certain given boundary conditions at infinity. Firstly, in order to overcome the complex problems caused by non-circular geometric configurations and the lining supports, optimal design m...
Meso-mechanical Effect of Track Slab Rebar Corrosion
SU Chengguang, LIU Dan, ZHAO Pingrui, LIU Xueyi
2020, 55(2): 273-281, 289. doi: 10.3969/j.issn.0258-2724.20190321
[Abstract](664) [FullText HTML] (314) PDF 2141KB(12)
Abstract:
To explore the effect of rebar corrosion on double-block ballastless track slab concretes, a meso-scale mechanical model of track slab concretes was built to study the mechanical properties and damage modes of the slabs with different rebar diameters, spacing and cover thicknesses, the effect of tra...
Vehicle-Guideway Coupling Vibration Comparative Analysis for Maglev Vehicles While Standing Still
WANG Keren, LUO Shihui, MA Weihua, CHEN Xiaohao, ZOU Ruiming
2020, 55(2): 282-289. doi: 10.3969/j.issn.0258-2724.20170891
[Abstract](673) [FullText HTML] (393) PDF 1250KB(32)
Abstract:
In order to study the vehicle-guideway coupling vibration characteristics of the two kinds of low-speed maglev trains with three suspension frame and the second suspension installed in the end and middle of the suspension frame respectively, the vertical vehicle-guideway coupling vibration dynamic m...
Functional Relationships between Sound Powers Radiated from Noise Sources of High-Speed Train and Its Speed
ZHU Ziwei, LI Muxiao, CHENG Gong, SHENG Xiaozhen
2020, 55(2): 290-298. doi: 10.3969/j.issn.0258-2724.20180023
[Abstract](867) [FullText HTML] (355) PDF 1478KB(46)
Abstract:
To solve the problem that the existing logarithm empirical formula cannot satisfactorily fit the relationship between the sources contribution rate and the speed, the microphone array was used to identify the external sound sources of a high-speed train at different speeds. Dividing the train surfac...
Seismic Behavior of Energy-Saving Block & Invisible Multi-ribbed Frame Composite Walls with Different Opening Positions
LI Shengcai, LIN Qiang, GUO Lin
2020, 55(2): 299-309. doi: 10.3969/j.issn.0258-2724.20180793
[Abstract](641) [FullText HTML] (354) PDF 1234KB(15)
Abstract:
In order to study the failure modes and seismic performance of energy-saving block & invisible multi-ribbed frame composite wall (EBIMFCW) in terms of hysteretic behavior, stiffness degradation, ductility, energy dissipation capacity, etc., low cyclic reversed loading tests were conducted on six...
Construct and Application of LM-CDBN Deformation Prediction Model for Supertall Buildings
QIU Dongwei, WANG Tong, DUAN Mingxu, LUO Dean, WANG Laiyang
2020, 55(2): 310-316. doi: 10.3969/j.issn.0258-2724.20180293
[Abstract](716) [FullText HTML] (363) PDF 731KB(19)
Abstract:
In order to improve the prediction accuracy of supertall building deformation, the method of adjusting the weight and threshold in the conditional deep belief network (CDBN) model was improved. The LM (Levenberg-Marquardt) algorithm was used as a weighting method to construct the LM-CDBN network mod...
Theoretical Model and Performance Tests of Rotational Eddy Current Dampers with Cable
XUE Songtao, BAN Xinlei, XIE Liyu, YU Bilong
2020, 55(2): 317-322. doi: 10.3969/j.issn.0258-2724.20170802
[Abstract](866) [FullText HTML] (488) PDF 1499KB(28)
Abstract:
A novel rotational eddy current damper with cable is proposed, which is composed of inerter, spring and damping elements. In order to validate the mechanism for vibration mitigation, a mechanical model of a single-layer frame equipped with the damper is built. A series of vibration tests are carried...
Experimental Study on Seismic Performance of RC Columns Made of Ultra-High-Strength Materials
SHAO Jiabang, ZHAO Hua, ZHAO Shichun, SUN Yuping
2020, 55(2): 323-331. doi: 10.3969/j.issn.0258-2724.20180453
[Abstract](639) [FullText HTML] (351) PDF 2256KB(9)
Abstract:
As recent strong earthquakes have revealed, the excessive deformation of the traditional ductile structures under mega-earthquakes far more than design intensity makes the structures hard to be repaired after earthquakes. To assure sufficient resilience of concrete columns, i.e., stable response and...
Mechanical Behavior of Intercalation Plate Joints of Concrete-Filled Steel Tubular Wind Turbine Tower
WEN Yang, CAI Junqing, CHEN Mingjun
2020, 55(2): 332-342. doi: 10.3969/j.issn.0258-2724.20180273
[Abstract](817) [FullText HTML] (350) PDF 1161KB(11)
Abstract:
In order to understand mechanical behavior of intercalation plate joints of concrete-filled steel tubular wind turbine tower, static test of four split-type nodes was carried out, and finite element nonlinear analysis of parameters expansion was carried out by ABAQUS. Effect force distribution of th...
Effect of Casting Defects on Mechanical Properties of Steel Structures with Cast Steel Joints
YAN Huadong, GONG Weijia, JIN Hui
2020, 55(2): 343-349, 371. doi: 10.3969/j.issn.0258-2724.20180081
[Abstract](709) [FullText HTML] (336) PDF 867KB(12)
Abstract:
In order to study the influence of the grade size and position distribution of casting defects on the static and fatigue properties of steel castings, firstly, a three-dimensional solid steel truss model with cast steel joints was built by Solidworks, and the size and location of casting defects on ...
Bubble Model Based Grid Generation and Grid Size Control over Free-Form Surface
WANG Qisheng, GAO Boqing, WU Hui
2020, 55(2): 350-356. doi: 10.3969/j.issn.0258-2724.20180210
[Abstract](618) [FullText HTML] (295) PDF 1253KB(11)
Abstract:
To generate triangular grids with regular shapes and adaptive sizes over free-form surfaces, an automatic grid generation method is presented on the basis of a bubble dynamic model. Grid nodes were first decorated on the discretized surface according to certain rule, and were regarded as elastic bub...
Dynamic Displacement Response of Pavement Structure under Moving Vehicle Load
ZHANG Xianmin, KONG Weibin, LIU Xiaolan
2020, 55(2): 357-363. doi: 10.3969/j.issn.0258-2724.20170137
[Abstract](587) [FullText HTML] (460) PDF 998KB(33)
Abstract:
In order to study the dynamic displacement response law of pavement structure under driving load, a finite element model (FEM) of pavement structure is established by the theory of elastic layered system. Applying the random dynamic load of a vehicle to the FEM, the variation of vertical dynamic dis...
Mechanism of Polygonal Wear on Wheels of Electric Multiple Units on Lanzhou-Xinjiang Passenger Dedicated Line
ZHAO Xiaonan, CHEN Guangxiong, KANG Xi, ZHU Qi, ZHANG Sheng, LÜ Jinzhou
2020, 55(2): 364-371. doi: 10.3969/j.issn.0258-2724.20190027
[Abstract](793) [FullText HTML] (476) PDF 3214KB(27)
Abstract:
Wheels of the electric multiple units (EMU) running on the Lanzhou-Xinjiang Passenger Dedicated Line have undergone severe polygonal wear because of the harsh environment. This wear increases the contact force between wheels and rails, affects the comfort of passengers, and even endangers train runn...
Influence of Surface Feature Height of Deterministic Texture on Tactile Perception of Fingertip
LIU Taofeng, LI Yiyuan, LI Wei, ZHOU Zhongrong
2020, 55(2): 372-378. doi: 10.3969/j.issn.0258-2724.20180038
[Abstract](644) [FullText HTML] (318) PDF 1167KB(14)
Abstract:
In order to reveal the basic mechanism and law of the tactile perception of human body, first of all, the influences of the surface feature height of deterministic texture on the fingertip skin friction behavior were studied through friction and wear analysis in mechanical physics. Secondly, by mean...
Leakage Analysis and Volumetric Efficiency of Symmetrical Multiple Output Gear Motors
WEN Desheng, WANG Shaopeng, TIAN Shanheng
2020, 55(2): 379-385. doi: 10.3969/j.issn.0258-2724.20180226
[Abstract](586) [FullText HTML] (380) PDF 888KB(15)
Abstract:
In order to study the leakage and volumetric efficiency of a symmetrical multi-output geared motor, the geometric displacements of the internal and external motors under different connection modes were calculated based on the internal structure of the symmetric multi-output gear motor. The main leak...
Lane Detection Algorithm Based on Dilated Convolution Pyramid Network
TIAN Sheng, ZHANG Jianfeng, ZHANG Yutian, XU Kai
2020, 55(2): 386-392, 416. doi: 10.3969/j.issn.0258-2724.20181026
[Abstract](660) [FullText HTML] (340) PDF 963KB(25)
Abstract:
In order to meet the accuracy and timeliness requirements of advanced driver-assistance system in lane detection, the improved ResNet50 network as the basic model to extract the features of the local laneline is proposed. Given that the dilated convolution can exponentially expand the receptive fiel...
BeiDou Navigation Satellite System/Inertial Measurement Unit Integrated Train Positioning Method Based on Improved Unscented Kalman Filter Algorithm
CAI Xuan, WANG Changlin
2020, 55(2): 393-400. doi: 10.3969/j.issn.0258-2724.20170816
[Abstract](811) [FullText HTML] (345) PDF 958KB(38)
Abstract:
In order to improve the accuracy and continuity of train positioning, BeiDou satellite receiver and inertial measurement unit were employed to construct an on-board integrated positioning system. Given the nonlinearity and robustness in the information fusion estimation of mulit-sensor positioning, ...
Application of Multi-Clause Synergized Deduction in First-Order Logic Automated Theorem Proving
CAO Feng, XU Yang, CHEN Shuwei, WU Guanfeng, CHANG Wenjing
2020, 55(2): 401-408, 427. doi: 10.3969/j.issn.0258-2724.20180800
[Abstract](625) [FullText HTML] (300) PDF 708KB(15)
Abstract:
First-order logic is an important branch in mathematical logic, and automated reasoning of its logical formula is one of the important research hotspots in the field of artificial intelligence. Most of the state of the art first-order logic automated theorem proving systems adopt binary resolution m...
Energy Management Strategy of Hybrid Tram Based on Dynamic Degree of Hybrid
CHEN Weirong, SHI Fangli, DAI Chaohua, AN Qi, LIU Yubei, LIU Yang
2020, 55(2): 409-416. doi: 10.3969/j.issn.0258-2724.20181071
[Abstract](748) [FullText HTML] (333) PDF 1359KB(21)
Abstract:
In order to improve system efficiency and operational economy of hybrid tram, according to the relationship between dynamic degree of hybrid (DDOH) and system efficiency, a hybrid tram energy management strategy (EMS) based on DDOH online convex programming is proposed. Firstly, each component is mo...
Data-Driven Based Remaining Useful Life Prediction for Proton Exchange Membrane Fuel Cells
ZHANG Xuexia, GAO Yuxuan, CHEN Weirong
2020, 55(2): 417-427. doi: 10.3969/j.issn.0258-2724.20180016
[Abstract](1056) [FullText HTML] (469) PDF 560KB(124)
Abstract:
Proton exchange membrane fuel cell (PEMFC) is a power generation technology with promising application prospects. The prognosis for the remaining useful life of PEMFCs plays an important role in its commercial use. In this work, the degradation mechanism and output characteristics of PEMFCs are revi...
Free Vibration Characteristics of Multi-constrained Fuel Rod
LIU Pengliang, CHEN Biaosong, FAN Chenguang, LI Fei
2020, 55(2): 428-434. doi: 10.3969/j.issn.0258-2724.20180522
[Abstract](726) [FullText HTML] (240) PDF 1049KB(30)
Abstract:
In order to develop flow-induced vibration calculation program for nuclear fuel design, a theoretical method for analyzing multi-constrained fuel rod vibration is established based on beam theory and potential flow theory. Firstly, the vibration control equations in air and the overall stiffness mat...
Performance Analysis of Tri-state Boost Converter with Dynamic Reference Current Control
ZHOU Guohua, ZENG Shaohuan, ZHOU Shuhan, MAO Guihua
2020, 55(2): 435-441, 458. doi: 10.3969/j.issn.0258-2724.20180005
[Abstract](613) [FullText HTML] (261) PDF 1384KB(19)
Abstract:
To improve the efficiency, load range, and transient response performance of a tri-state boost converter operating in the pseudo continuous conduction mode (PCCM), the dynamic reference current (DRC) control was studied. First, the principles of the DRC controlled tri-state boost converter were anal...
Hyperspectral-Based Corona Aging Evaluation for Composite Insulators
ZHANG Xueqin, GAO Runming, GUO Yujun, KANG Yongqiang, LI Yuansheng, WU Guangning
2020, 55(2): 442-449. doi: 10.3969/j.issn.0258-2724.20181062
[Abstract](615) [FullText HTML] (330) PDF 1177KB(21)
Abstract:
Composite insulators have been widely used in transmission lines due to good water repellency and hydrophobic migration. Corona discharges aggravate the aging of composite insulators. To this end, a method was proposed to evaluate the corona aging of composite insulators based on hyperspectral techn...
Switching Scheme of Multi-mode Modulation Based on Selected Harmonic Elimination Pulse Width Modulation
YU Bin, SONG Wensheng, ZHAO Leiting, JIANG Wei, FENG Xiaoyun
2020, 55(2): 450-458. doi: 10.3969/j.issn.0258-2724.20180148
[Abstract](749) [FullText HTML] (309) PDF 1194KB(44)
Abstract:
In order to suppress the current and torque shock, a switching scheme of multi-mode modulation based on selected harmonic elimination pulse width modulation (SHEPWM) was proposed. Based on the basic principle of SHEPWM, the spectrum of phase voltage was analyzed. The relationship between current har...

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