西南交通大学学报

Simulation Study on Multiline Vehicle-Bridge Coupled Vibration

CUI Sheng'ai, LIU Pin, CAO Yibin, SU Jiao, ZHU Bing

2017, 30(5): 835-843. doi: 10.3969/j.issn.0258-2724.2017.05.001

[Abstract](627)

Abstract:
In order to evaluate the safety and comfort of trains for high-speed multiline railway bridges, it is necessary to perform a simulation research on coupled vibrations for multiline railway vehicle-bridges. For this study, the three-dimensional space dynamic models of CRH3 motor car and trailer were ...

Optimization of Energy Efficiency of Train Travelling Along Slope Using Sequential Quadratic Programming

LI Chuan, PU Yun, ZHANG Jie

2017, 30(5): 844-851,918. doi: 10.3969/j.issn.0258-2724.2017.05.002

[Abstract](647)

Abstract:
A train energy consumption model was developed to optimize the operation curve of trains travelling along a local steep slope section where the decision variables are continuous variables. The model was developed based on the fundamental theory of train dynamics, taking into account the constraints ...

Integrated Classification Method for Vehicle Wheel-set Condition Based on Imbalanced Datasets

AO Yinhui, HUANG Xiaopeng, YUAN Minzheng, CHEN Xijun, FANG Enquan

2017, 30(5): 852-858. doi: 10.3969/j.issn.0258-2724.2017.05.003

[Abstract](520)

Abstract:
The wheel-rail vibration signal of a metro vehicle has the characteristics of being non-linear, non-stationary, and a low value of signal-to-noise ratio. The paper proposes an integrated classifier model based on the imbalanced datasets to achieve the disassembly detection and fault diagnosis of whe...

Periodic Braking of Freight Trains with HXD2 Locomotive on Long Heavy Down Grade

LIN Xuan, WANG Qingyuan, LIU Qiangqiang, FENG Xiaoyun

2017, 30(5): 859-868. doi: 10.3969/j.issn.0258-2724.2017.05.004

[Abstract](587)

Abstract:
An optimal control model of freight train operation, with focus on the regenerative braking energy, was established, based on the fundamental principles of railway traction and energy consumption analysis. The model was specifically developed for the following conditions:(1) the train travels along ...

Organization and Scheduling Method of 3D Urban Scene Data Driven by Visual Perception

ZHU Qing, CHEN Xingwang, DING Yulin, LIU Mingwei, HE Huagui, YANG Weijun, CHEN Liyan, CAO Zhenyu

2017, 30(5): 869-876. doi: 10.3969/j.issn.0258-2724.2017.05.005

[Abstract](659)

Abstract:
Focusing on the problems of inefficient 3D model scheduling and low visual consistency of complex 3D urban scene visualization, a self-adaptive organization and scheduling method for 3D urban scenes driven by visual perception is proposed. Based on the spatial distribution of 3D city models, the ada...

Optimizing Railway Station Locations in Mountainous Areas Based on Weighted

PU Hao, ZHANG Hong, LI Wei, HU Jianping, HU Guangchang

2017, 30(5): 877-885. doi: 10.3969/j.issn.0258-2724.2017.05.006

[Abstract](606)

Abstract:
To solve the problem of automatically setting railway station locations in the case where no alternatives can be selected, a method named "weighted mask transform" was proposed. This method is based on the grey correlation analysis theory and the coupling between railway alignment and station locati...

Autonomous-Positioning Information Aided Train Integrity Detection Risk Analysis Method

LI Sihui, CAI Baigen, XU Aiguo, SHANGGUAN Wei, WEN Yinghong, WANG Jian

2017, 30(5): 886-892. doi: 10.3969/j.issn.0258-2724.2017.05.007

[Abstract](560)

Abstract:
Autonomous-positioning information error and failure can lead to a safety risk in train integrity detection. In this study, the problem of train integrity detection, which determines whether a train remains intact in terms of relative position, velocity and acceleration, was investigated. A Bayesian...

Effect of Slope Gradient on Wind Pressure of High-Rise Buildings during Thunderstorm

WANG Zhisong, FANG Zhiyuan, LIU Ya'nan

2017, 30(5): 893-901. doi: 10.3969/j.issn.0258-2724.2017.05.008

[Abstract](552)

Abstract:
To analyze the effects of thunderstorm downburst wind on the surface wind load of high-rise buildings and provide a reference for the design of high-rise buildings, the wind pressure distribution on the surface of high-rise buildings on flat and sloped terrains was investigated using an impinging je...

Method to Predict Vibrations Induced in Ancient Wooden Structures by Traffic Loads and its Validation

ZHANG Yunshi, ZHANG Nan, FAN Hua, CAO Yanmei, XIA He

2017, 30(5): 902-909. doi: 10.3969/j.issn.0258-2724.2017.05.009

[Abstract](574)

Abstract:
The aim of this work is to establish a method for predicting vibrations induced in ancient wooden structures by traffic loads. First, a field test was performed at the Buddhist sutra depositary at Yangzhou Zhunti Temple, based on the prediction method. The modal parameters were identified from the e...

Impact of Partition Method in Pit Construction Adjacent to Existing Metro Shield Tunnel

ZHENG Yuchao, SHI Bowen, SUN Keguo, YANG Tianchun, LI Hui

2017, 30(5): 910-918. doi: 10.3969/j.issn.0258-2724.2017.05.010

[Abstract](557)

Abstract:
In order to ensure the structural safety and normal operation of pit construction occurring adjacent to an existing metro shield tunnel, research on a longitudinal equivalent rigidity model of a shield tunnel was performed to establish the relationship between the tunnel's longitudinal deformation c...

Model Experimental Study on Dynamic Performance of Special Soil Subgrade Reinforced with Composite Geomembrane Seal Layer

HUANG Junjie, SU Qian, ZHAO Wenhui, WANG Wubin

2017, 30(5): 919-925. doi: 10.3969/j.issn.0258-2724.2017.05.011

[Abstract](512)

Abstract:
To analyze the protective effect of a composite geomembrane seal layer on special soil subgrades, two full-scale models of ballast track-special soil subgrade were developed. In this study, the dynamic performance of ballast track-special soil subgrades with and without a composite geomembrane seal ...

Prediction Soft Soil Settling Using a Combination Method

CUI Kai, YANG Wenheng

2017, 30(5): 926-934. doi: 10.3969/j.issn.0258-2724.2017.05.012

[Abstract](543)

Abstract:
To explore the antecedence and accuracy of predicting soft soil roadbed settlement this study analyzed selected typical sections taking into account field relationships, engineering geological surveys, engineering measurements, and roadbed settlement tests. A combined optimization method for predict...

Low Temperature Performance and Evaluation Index of Epoxy Asphalt Mixture

RAN Wuping, LING Jianming, GU Zhifeng

2017, 30(5): 935-942. doi: 10.3969/j.issn.0258-2724.2017.05.013

[Abstract](664)

Abstract:
In order to establish a theoretical basis for the design of epoxy asphalt pavement under low temperature conditions, in this study, the cracking performance and evaluation indexes of epoxy asphalt mixtures under low temperature conditions were investigated through laboratory tests. Based on the appl...

Study on Design Parameters of Aggregate Based on Surface Texture Characteristic of HMA

CHEN De, HAN Sen, SU Qian

2017, 30(5): 943-948. doi: 10.3969/j.issn.0258-2724.2017.05.014

[Abstract](552)

Abstract:
In order to realise an optimised asphalt mixture design according to surface texture properties, the distributions along with wavelengths of the surface texture of asphalt mixtures, having different aggregate design parameters, were analysed using the testing method of levels and distributions of as...

Application of Railway Engineering Survey Based on Remote Sensing Technology for Realistic Scenes

MENG Xianglian, ZHOU Fujun

2017, 30(5): 949-955. doi: 10.3969/j.issn.0258-2724.2017.05.015

[Abstract](633)

Abstract:
In order to promote the application of remote sensing technology in railway engineering surveys, the limitations of traditional remote sensing technology were analysed, and a novel remote sensing technology is proposed for realistic scenes. A complete remote sensing modelling method and production a...

Forming Rules and Performances of Laser-MAG Hybrid Welding Joints of SUS301L-MT Stainless Steel

HAN Xiaohui, ZHAO Yanqiang, YANG Xiaoyi, CHEN Hui, GOU Guoqing

2017, 30(5): 956-961. doi: 10.3969/j.issn.0258-2724.2017.05.016

[Abstract](539)

Abstract:
This study focusses on 6 mm-thick SUS301L-MT austenitic stainless steel, which will be used for the manufacture of next-generation city rail trains. In order to establish the technical foundation for the manufacture of city rail trains, the forming rules and performances of 6 mm-thick SUS301L-MT aus...

Investigation on Effect of Torque on Fretting Damage of Test Facility Shaft

WEN Guang, HE Chenggang, WANG Wenjian, ZHOU Guiyuan, LIU Qiyue

2017, 30(5): 962-969. doi: 10.3969/j.issn.0258-2724.2017.05.017

[Abstract](481)

Abstract:
The effect of torque on the fretting damage of an interface fit between the shaft and inner surface of bearings was investigated on the JD-1 wheel/rail simulation test facility with different loads. The fretting damage mechanism of the shaft surface was analyzed by observing the wear scar and micros...

Drawbead Optimisation in Stamping Using SA-RBF Neural Networks

XIE Yanmin, TANG Wei, HUANG Renyong, XIONG Wencheng, ZHUO Dezhi

2017, 30(5): 970-976,993. doi: 10.3969/j.issn.0258-2724.2017.05.018

[Abstract](562)

Abstract:
The structure of a radial basis function (RBF) neural network based on the k-means clustering algorithm was optimised by employing the simulated annealing algorithm for improving the prediction accuracy. The NUMISHEET 02 fender was considered as the object of research and six equivalent drawbead for...

Axial Rigidity of Unstiffened Transverse Plate-to-Circular Hollow Section (CHS) Joints

ZHAO Bida, LIU Chengqing, YU Congdi, CHEN Anhua

2017, 30(5): 977-984. doi: 10.3969/j.issn.0258-2724.2017.05.019

[Abstract](590)

Abstract:
To study the initial axial rigidity of transverse plate-to-circular hollow section (CHS) joint, a semicircular arch and circular ring models for the rigidity calculation of T-type and cross shaped-type plate-to-CHS joints were developed based on the analysis of force transferring mechanism and local...

Tensile Behaviour of Hollo-bolts Embedded in Concrete

QU Hui, PAN Hongwei, LIU Yanzhi, TAN Ding

2017, 30(5): 985-993. doi: 10.3969/j.issn.0258-2724.2017.05.020

[Abstract](491)

Abstract:
To examine the tensile response of Hollo-bolts considering the bonding effect of concrete, a new device to perform pullout tests was used to investigate the tensile behaviour of Hollo-bolts embedded in concrete. First, the tensile force-displacement relationships for all specimens under different ex...

Numerical Simulation Analysis of RC Beams Strengthened with CFRP Using Viscoelasticity Constitutive

XU Baishun, MA Ming, QIAN Yongjiu, TANG Jishun, ZHANG Fang

2017, 30(5): 994-1000. doi: 10.3969/j.issn.0258-2724.2017.05.021

[Abstract](573)

Abstract:
In order to investigate the mechanical behavior influence of the adhesive viscoelastic on reiforced concrete beams strengthened with the carbon fiber reinforced polymer, the Burger model was used to describe the stress-strain-time relation for the adhesive. The relaxation shear modulus with Prony se...

Study of Ramp Control Method for Urban Expressways Using Improvised ALINEA Algorithm

QIAO Yanfu, ZHAO Bin, FANG Chuanwu, YAO Zhihong

2017, 30(5): 1001-1007. doi: 10.3969/j.issn.0258-2724.2017.05.022

[Abstract](850)

Abstract:
The traditional ALINEA (asservissement linéaire d'entrée autoroutière) ramp control algorithm does not take into consideration the ramp queue overflow of urban expressways, and may thus cause traffic congestion at the apposite expressway intersection. By incorporating the classical ALINEA ramp contr...

Flight Taxi-out Time Prediction Based on KNN and SVR

FENG Xia, MENG Jinshuang

2017, 30(5): 1008-1014. doi: 10.3969/j.issn.0258-2724.2017.05.023

[Abstract](468)

Abstract:
Aimed at resolving the possible ground traffic and low operational efficiency issues in a large busy airport caused by the simple aircraft taxi-out time estimation, a two-step aircraft taxi-out time prediction model was constructed based on K-nearest neighbours (KNN) and support vector regression (S...

Existence Problem of Invariant Torus Particle Motion in Rotating Nonlinear Dynamical Systems

WANG Jing, XIE Jianhua, YUE Yuan

2017, 30(5): 1015-1019. doi: 10.3969/j.issn.0258-2724.2017.05.024

[Abstract](479)

Abstract:
In order to study whether the invariant torus of integrable Hamiltonian systems is retained under small perturbations, we established the Hamiltonian equations in polar coordinates. Using the first integral of the energy conservation equation, the transformation of the second-order state variable fr...

Adaptive Virtual Impedance Droop Control Method in Load Sharing

WANG Tianhong, LI Qi, CHENG Weirong

2017, 30(5): 1020-1028. doi: 10.3969/j.issn.0258-2724.2017.05.025

[Abstract](712)

Abstract:
An adaptive virtual impedance droop control method considering line impedance is proposed to achieve load sharing of a DC grid system and improve system stability. Based on the output droop characteristics and the principle of virtual impedance, the load voltage and current are taken into considerat...

Effect of Particle Concentration on Dynamic Characteristics of Oil Containing Particles

CHEN Bin, LIU Ge

2017, 30(5): 1029-1036. doi: 10.3969/j.issn.0258-2724.2017.05.026

[Abstract](554)

Abstract:
To reduce the damage caused by particulate matter to equipment operation and to effectively control the particle concentration in oil, the pseudo-homogeneousz-flow mathematical model of suspended particles in oil was established using the continuum theory of liquid-solid two-phase flow. The dynamic ...

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2017 Vol. 30, No. 5