西南交通大学学报

Recent Advances of Research on Diexi Earthquake

HONG Shizhong

2014, 27(2): 185-194. doi: 10.3969/j.issn.0258-2724.2014.02.001

[Abstract](1382)

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Abstract:
On August 25, 1933, an M7.5 earthquake occurred in Diexi of Maoxian County, Sichuan Province, China. The strong earthquake caused a lot of landslides and collapses. The Diexi town was destroyed completely, and casualties were heavy. After 45 days, the barrier lake made by the earthquake burst to cau...

Simulation of Construction Process of Loukouni Bridge in the Republic of Congo

WANG Yuanqing, ZONG Liang, ZHANG Longying, JIA Ruihua, SHI Gang

2014, 27(2): 195-201. doi: 10.3969/j.issn.0258-2724.2014.02.002

[Abstract](1032)

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Abstract:
Loukouni bridge is a deck type arch bridge with box section and is a part of the second stage of the first national road project of the Republic of Congo. This bridge will be constructed with cable erecting equipment. To make sure its construction safety, three methods, including the zero moment met...

Effects of Towers Random Sectional Bending Stiffness on Dynamic Characteristics of Large-Span Cable-Stayed Bridge

HUANG Bin, LI Yejun, ZHU Liping, ZHANG Weidong

2014, 27(2): 202-207. doi: 10.3969/j.issn.0258-2724.2014.02.003

[Abstract](1096)

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Abstract:
In order to investigate the dynamic characteristics of large span cable-stayed bridges with uncertain structural parameters, the plane FEM model of Edong Yangtze River bridge was established. In view of the randomness of sectional bending stiffness of the towers, the mean and standard deviation of t...

Anti-slip Performance of Interface between Carbon Fiber-Reinforced Plastic Main Cable and Cable Clamp for Large-Span Suspension Bridges

ZHUGE Ping, ZHANG Zihua, WANG Sicong, DING Yong, QIANG Shizhong

2014, 27(2): 208-212. doi: 10.3969/j.issn.0258-2724.2014.02.004

[Abstract](1173)

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Abstract:
In order to solve the slip problem between main cable and clamp at saddles of large-span suspension bridges, the anti-slip performance of the interface between carbon fiber reinforced plastic (CFRP) cable and cable clamp was investigated. The frictional coefficient calculation formula of the interfa...

Fatigue Reliability Analysis of Multi-loading Suspension Bridges Considering Nonlinear Accumulative Damage

CHEN Zhiwei, XU Youlin

2014, 27(2): 213-219. doi: 10.3969/j.issn.0258-2724.2014.02.005

[Abstract](1974)

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Abstract:
Taking into account uncertainties in the nonlinear process of fatigue damage accumulation for fatigue reliability analysis of multi-loading long-span bridges, a fatigue reliability assessment method for a long suspension bridge under combined highway, railway, and wind loadings was proposed using a ...

Probability Density Evolution Method of Nonlinear Random Vibration Analysis

PENG Yongbo, LI Jie

2014, 27(2): 220-226. doi: 10.3969/j.issn.0258-2724.2014.02.006

[Abstract](1108)

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Abstract:
In order to reveal the applicability of the probability density evolution method in nonlinear random vibration analysis, a comparative research of the probability density evolution method and the classical nonlinear random vibration analysis was carried out by investigating the nonlinear responses o...

Probability Density Evolution Analysis for Stochastic Dynamic Seismic Responses of Structures Based on Improved Point Estimation Method

SONG Pengyan, LÜ, Dagang, YU Xiaohui, WANG Guangyuan

2014, 27(2): 227-232. doi: 10.3969/j.issn.0258-2724.2014.02.007

[Abstract](1283)

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Abstract:
In order to obtain the law of probability densities of structural responses varying with time, a new moment-based approach for analysis of probability density evolution of nonlinear stochastic dynamic responses of structures was developed, by combining an improved point estimation method (IPEM) with...

Numerical Simulation of Wave Forces on Large Circular Cylinder Based on -Coordinate and Immersed Boundary Method

KANG Azhen, ZHU Bing, XING Fan

2014, 27(2): 233-239. doi: 10.3969/j.issn.0258-2724.2014.02.008

[Abstract](1095)

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Abstract:
To investigate the wave forces acting on a large circular cylinder under wave effects, a three-dimensional numerical model for the interaction of three-dimensional waves and a structure was established based on the multiple-layer -coordinate transformation model used to simulate time-dependent free ...

Optimization Analysis of Height and Distance of Shelter Wind Wall for High-Speed Railway

YE Kun, LI Renxian

2014, 27(2): 240-246. doi: 10.3969/j.issn.0258-2724.2014.02.009

[Abstract](1326)

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Abstract:
Based on the Navier-Storkes equations of viscous compressible fluid and the k- two-equation turbulent model, side forces and rolling moments acting on a train were calculated by means of the finite volume method. The effects of shelter wind wall on transverse aerodynamic forces acting on trains were...

Peak Pressure Estimation Method of Wind Loads on Low-Rise Building Based on Field Measurement

HUANG Peng, CAI Bin, QUAN Yong, GU Ming

2014, 27(2): 247-253. doi: 10.3969/j.issn.0258-2724.2014.02.010

[Abstract](1097)

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Abstract:
The peak pressure estimation methods of field measurement-based wind loads on low-rise buildings were investigated for the design of wind resistance on low-rise buildings. Based on pressure data measured on the roof of the test building during monsoon climate at the wind engineering field measuremen...

Assessment on Safety of Steel Reinforced Shotcrete Support for Tunnels

YANG Chengyong, OUYANG Jie, LU Jinghui

2014, 27(2): 254-259. doi: 10.3969/j.issn.0258-2724.2014.02.011

[Abstract](1063)

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Abstract:
A displacement-based method was proposed to evaluate the safety of steel reinforced shotcrete support for tunnels under construction. Based on shotcrete creep experiment, a GL2000 model was modified and employed to describe the creep of shotcrete. Formulas to calculate the axial deformation and curv...

Stress Mechanism of Lining Structure of High Geothermal and Deep-Buried Tunnel

WANG Yusuo, YE Yuezhong, YANG Chao, TANG Jianhui, CHEN Long, ZENG Hongfei

2014, 27(2): 260-267. doi: 10.3969/j.issn.0258-2724.2014.02.012

[Abstract](1447)

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Abstract:
To study the behavior of stress varying with the ambient temperature in lining structures of high geothermal and deep-buried tunnels, a laboratory model test was designed to measure the structural stress of a tunnel model at various temperatures. Then, a numerical simulation analysis of the model te...

Two-Dimensional Magnetotelluric Tipper and Apparent Tipper：Simulation and Application

YU Nian, HU Xiangyun, WANG Xuben, LI Jian

2014, 27(2): 268-275. doi: 10.3969/j.issn.0258-2724.2014.02.013

[Abstract](1060)

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Abstract:
In order to analyze abnormal responses of 2D magnetotelluric tipper data, a tipper data forward calculation was developed using the finite element quadrilateral mesh, and a forward numerical simulation of the abnormal body, inclined faults, static effects, and terrains was made based on their theore...

Control Method of Vehicle Directional Stability for Automobile Anti-lock Braking System

ZHENG Taixiong, MA Fulei, YANG Yong

2014, 27(2): 276-282. doi: 10.3969/j.issn.0258-2724.2014.02.014

[Abstract](1115)

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Abstract:
In order to maintain vehicle directional stability during the emergency braking, a control method of controlling the brake wheel cylinder pressure difference between the front wheels was put forward. The control process of the anti-lock braking system (ABS) is divided into first control and conventi...

Rollover Control Strategy Based on Vehicle Stability Control System

OU Jian, CHENG Xiangchuan, ZHOU Xinhua, YANG Echuan, ZHANG Yong

2014, 27(2): 283-290. doi: 10.3969/j.issn.0258-2724.2014.02.015

[Abstract](1156)

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Abstract:
To enhance the rollover control function of vehicles in extreme conditions, a vehicle dynamics model with 8 degrees of freedom covering yaw and roll motions was established, and an integrated control strategy with emergency roll control was proposed based on the direct yaw control of the traditional...

Influence of Valves Parameters on Damping Characteristics of Hydraulic Shock Absorber for High-Speed Trains

YANG Mingliang, LI Renxian, DING Weiping, ZHANG Song, DING Wei

2014, 27(2): 291-296. doi: 10.3969/j.issn.0258-2724.2014.02.016

[Abstract](1163)

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Abstract:
A form of hydraulic shock absorber structure widely used for high-speed trains was studied to reveal the quantitative relationship between the damping characteristics of hydraulic shock absorber and valves parameters. The damping force generating mechanism was analyzed using fluid dynamics principle...

Main Valve Structure Design for Water Medium Low-Pressure Large-Flow Pilot Operated Solenoid Valve

ZHAO Jiyun, ZHANG Desheng, LIU Lei, DING Haigang

2014, 27(2): 297-301. doi: 10.3969/j.issn.0258-2724.2014.02.017

[Abstract](956)

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Abstract:
In order to achieve the basic requirements of the large-power valve-control coupling for control valve quick response, high flow capacity, and anti-blocking ability, the main valve with a tail cone structure was designed for a water medium low-pressure large-flow pilot solenoid valve group. The infl...

Wheel-Rail Wear on Heavy Haul Lines and Its Influences on Running Stability of Trains

XIONG Jiayang, DENG Yongquan, CAO Yabo, LI Li, JIN Xuesong

2014, 27(2): 302-309. doi: 10.3969/j.issn.0258-2724.2014.02.018

[Abstract](1603)

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Abstract:
The development and application of heavy haul railways in China and other countries were reviewed. Typical wheel-rail wear that occurred on heavy haul railway lines was elaborated, including the wheel flange wear, hollow wear on the wheel tread, wheel ovalization, eccentric wear of wheels, side wear...

Algorithm for Computing Reliability Evolution of Internetware

ZHANG Jing, LEI Hang

2014, 27(2): 310-316. doi: 10.3969/j.issn.0258-2724.2014.02.019

[Abstract](1129)

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Abstract:
To calculate and evaluate the reliability change of Internetware system in the Internet environment, the reliability transition matrix of Internetware system was constructed using Internetware system architecture and considering the accumulation effects of Internetware reliability change. The reliab...

Combinational Modeling Method of Virtual High-Speed Railway Scene Based on Entity-Relationship Conceptual Model

ZHU Jun, WANG Jinhong, HU Ya, PENG Zilong, ZHANG Ali

2014, 27(2): 317-322. doi: 10.3969/j.issn.0258-2724.2014.02.020

[Abstract](1404)

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Abstract:
By analyzing the object entity and the three dimensional relations of virtual high-speed railway scene, a combinational modeling method based on entity-relationship conceptual model was proposed. The conceptual model of virtual high-speed railway scene was designed, which includes three levels, name...

An Adaptive Localization Algorithm Based on Particle Filter for Wireless Sensor Networks

DENG Ping, WU Xiaomei

2014, 27(2): 323-329. doi: 10.3969/j.issn.0258-2724.2014.02.021

[Abstract](1325)

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Abstract:
As the number of particles of the dynamic sampling based adaptive Monte Carlo boxed (AMCB) algorithm is too small at some localization time slots and the optimal inheritance of the particles can not be ensured, an improved particle filter localization algorithm named AMCB* was proposed. To solve the...

Influence of Geometric Parameter Design on Performance of Capacitive Proximity Sensors

LI Nan, HAN Ying

2014, 27(2): 330-336. doi: 10.3969/j.issn.0258-2724.2014.02.022

[Abstract](1015)

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Abstract:
To deal with the weak signal strength in the measurement of capacitive proximity sensors, the effects of geometric parameter design were investigated, and the sensor measurement performance was greatly improved by the geometric parameter optimization. The comprehensive evaluation standards of sensor...

Ranking Method for Node Importance Based on Efficiency Matrix

FAN Wenli, LIU Zhigang

2014, 27(2): 337-342. doi: 10.3969/j.issn.0258-2724.2014.02.023

[Abstract](1158)

PDF 441KB(639)

Abstract:
In order to improve the accuracy of the node importance evaluation in complex networks, a novel evaluation method based on efficiency matrix was proposed through analysis of the impact of non-adjacent nodes on the node importance evaluation by using the complex network theory. This method combined b...

Pollution Distribution Characteristic of High-Speed Train Roof Insulator and Its Optimization Strategy

SUN Jixing, LUO Shucai, WU Guangning, GAO Guoqiang, YANG Kunsong, HU Xueyong

2014, 27(2): 343-350. doi: 10.3969/j.issn.0258-2724.2014.02.024

[Abstract](1077)

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Abstract:
In order to solve the pollution accumulating problem of high-speed train roof insulators in rainy and foggy winter environment, a hydrodynamic simulation model was built to study the pollution distribution characteristics of the roof insulators. The movement and forces of pollution particles in high...

Acquisition System for Three-Dimensional Surface Texture of Asphalt Pavement Based on Digital Image Processing

LIU Yamin, HAN Sen, XU Ouming

2014, 27(2): 351-357. doi: 10.3969/j.issn.0258-2724.2014.02.025

[Abstract](1128)

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Abstract:
In order to make an objective and true evaluation on three-dimension surface texture of asphalt pavement, an acquisition system for surface three-dimensional texture of asphalt pavement was developed based on the digital image processing. First, the classical Lambertian diffuse model was used to obt...

Road System Optimum Equilibrium Model Based on Mean-Excess Travel Time

QIN Juan, PU Yun, LÜ, Biao

2014, 27(2): 358-366. doi: 10.3969/j.issn.0258-2724.2014.02.026

[Abstract](1103)

PDF 508KB(409)

Abstract:
In order to study the effects on traffic assignment of travelers' route choice behaviors under random perturbations, the mean-excess travel time (METT) was assumed to describe travelers' route choice criteria. According to the theory of marginal cost pricing, the calculation formula for marginal cos...

Blood Compatibility of Titanium Oxide Powder after High Temperature Annealing

ZHAO Ansha, WANG Zhao, ZHOU Shuo, ZHU Xiaohua, XIE Xiao, HUANG Nan

2014, 27(2): 367-372. doi: 10.3969/j.issn.0258-2724.2014.02.027

[Abstract](956)

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Abstract:
Vacuum annealing was used to prepare the Ti-O powder at different annealing temperatures. The structure and surface properties were characterized by X-ray diffraction, Zeta potential test and surface area measurement respectively. Bradford method was applied to determine the adsorption and desorptio...

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2014 Vol. 27, No. 2