• 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

2014 Vol. 27, No. 3

Display Method:
Cusp Point Condition for Estimating Ultimate Load of Pile Foundation Based on Strength Reduction Method
DONG Tianwen, ZHENG Yingren, TANG Xiaosong
2014, 27(3): 373-378. doi: 10.3969/j.issn.0258-2724.2014.03.001
Abstract:
In order to estimate the ultimate load of pile foundation by the strength reduction method, based on the Zeeman machine of cusp catastrophe, the bearing capacity functional of pile foundation and the theory of direct shear test the catastrophe's critical condition of bearing capacity of pile foundat...
Bearing Behaviour of Composite Foundation with Rigid-Flexible and Long-Short Piles under Embankment Load
ZUO Shen, LIU Weizheng, ZHANG Ruikun, ZHANG Hao, ZHANG Junhui
2014, 27(3): 379-385. doi: 10.3969/j.issn.0258-2724.2014.03.002
Abstract:
In order to study the bearing characteristics of the composite foundation with rigid-flexible and long-short piles under embankment loading, a field test of a foundation improved by the capped pre-stressed thin-wall concrete (PTC) piles and soil cement deep mixed (CDM) columns was conducted in a bri...
Structural Internal Force of Shield Tunnel in Expansive Soil Underlying Sandy Pebble Layer
FANG Yong, HE Chuan, QI Chun, ZHANG Ming
2014, 27(3): 386-392. doi: 10.3969/j.issn.0258-2724.2014.03.003
Abstract:
The Chengdu metro line 2 partly passes through the complex strata of sandy pebble and expansive soil. In order to obtain the influence law of expansive force resulted from partial expansion on shield tunnel lining structure load in complex layers, the influence of partial expansion with various rang...
Soil-Water and Shear Strength Characteristics of Unsaturated Red Clay
LI Longqi, LUO Shuxue, JIANG Hong, SONG Lei, DING Bingbing, LI Chugen
2014, 27(3): 393-398,431. doi: 10.3969/j.issn.0258-2724.2014.03.004
Abstract:
In order to study the unsaturated characteristics of red clay, Geo-experts self-balanced pressure plate meter and ZJ direct shear apparatus were used in experiments to investigate the soil-water and shear strength characteristics of the typical undisturbed and remolded red clays under different dry ...
Dynamic Responses of Groundwater Seepage of Landslide Influenced by Fluctuation of Reservoir Water Level
XIA Min, REN Guangming, MA Xinlei, DONG Qingzhi, HUANG Bangzhi, SUN Renxian
2014, 27(3): 399-405. doi: 10.3969/j.issn.0258-2724.2014.03.005
Abstract:
In order to investigate the impact of reservoir water level fluctuation on the dynamic responses of groundwater seepage of landslide. The transient seepage of Shiliushubao landslide as a research object was discussed under five different water level fluctuation rates and different seepage coefficien...
Analysis of Dynamic Characteristics of Railway Subgrade Based on Three-Dimensional Numerical Simulation
KONG Xianghui, JIANG Guanlu, LI Anhong, XIAO Dong
2014, 27(3): 406-411. doi: 10.3969/j.issn.0258-2724.2014.03.006
Abstract:
To discuss the effect of train axle load and speed on the dynamic characteristics of soil subgrade, a 3D dynamic simulation of the ballast track-subgrade system was made using ANSYS and FLAC3D. In the calculation process, the hysteretic damping was used to simulate the nonlinear characteristics of s...
Model Experiment of Fatigue Deformation Characteristic of Emergency Soil Airfield Pavement
LIU Junzhong, WENG Xingzhong, ZHANG Jun, LI Xianpeng, JI Dongming, GUO Lei
2014, 27(3): 412-418. doi: 10.3969/j.issn.0258-2724.2014.03.007
Abstract:
To investigate the reasonable pavement structure for rapid construction of emergency airfield, fatigue deformation characteristics of soil airfield pavement were researched respectively by manual loading method and electro-hydraulic servo fatigue testing machine. Through a full-scale model test, the...
Dynamic Responses of Super-Long-Span Suspension Bridge with CFRP Cables under Different Structural Design Parameters
LI Cuijuan, XU Xun, QIANG Shizhong
2014, 27(3): 419-424. doi: 10.3969/j.issn.0258-2724.2014.03.008
Abstract:
In order to research the dynamic responses of a super-long span suspension bridge with CFRP cables, a super-long-span suspension bridge with CFRP (carbon-fibre reinforced plastic) cables and having a span of 3 500 m was designed by taking a strait as engineering background. Based on the ANSYS softwa...
Effects of Axial Force Fluctuations on Seismic Behavior of Steel Box Column
LI Haifeng, LUO Yongfeng, CHEN Lincong, MEI Zhen
2014, 27(3): 425-431. doi: 10.3969/j.issn.0258-2724.2014.03.009
Abstract:
To investigate the influence mechanism of axial force fluctuation on the seismic behaviors of steel box columns, the seismic behaviors of steel box columns under 5 patterns of eccentrically fluctuant axial force were numerically analyzed by finite element simulation. The influence rules of axial for...
Influence of Seam in Type Ⅰ Slab Ends on Dynamic Characteristics of Track and Vehicle
YANG Junbin, LIU Xueyi, LIU Yongxiao, DAI Feng
2014, 27(3): 432-437,512. doi: 10.3969/j.issn.0258-2724.2014.03.010
Abstract:
In order to study the influence of the seam between type Ⅰ slab ends and CA mortar on dynamic characteristics of rail, slab, and vehicle under high-speed train load, a vehicle-type Ⅰ slab track vertical coupling dynamic model was established. Through this model, the changes of evaluation indexes suc...
Vibration Response of Vehicle with Stochastic Structural Parameters under Random Excitation
JIA Aiqin, CHEN Jianjun, CAO Hongjun
2014, 27(3): 438-443. doi: 10.3969/j.issn.0258-2724.2014.03.011
Abstract:
To investigate the influence of random structure parameters on vehicle vibration responses, the random vibration responses of a vehicle system with uncertain parameters under random road excitations were investigated using a quarter-vehicle model. A dynamic model for the system was established. In t...
Actions of Derailed Train on Structures in Eurocode:Impact Mechanism and Design Strategy
LIU Yanhui, ZHAO Shichun, Manfred Keuser
2014, 27(3): 444-449. doi: 10.3969/j.issn.0258-2724.2014.03.012
Abstract:
In order to study the impact mechanism and design method for a derailed train impacting against adjacent structures that are applicable to Chinese high-speed train, the UK Railway Group Standards GC/RT5112 and International Union of Railways leaflet UIC777-2R are analyzed, which are the basis to dev...
DC Bus Capacitor Voltage Balancing Circuits in Diode-Clamped Multilevel Converter
DING Na, SHU Zeliang
2014, 27(3): 450-454. doi: 10.3969/j.issn.0258-2724.2014.03.013
Abstract:
In order to solve the imbalance of DC bus capacitor voltages in the diode-clamped multilevel converter, a balancing circuit with two-layer auxiliary inductors was designed. With this circuit, the voltages of all the DC-side capacitors in the multilevel converter can be balanced by a simple control. ...
Variable Width Pulse Train Controlled DCM Buck Converter
WU Songrong, ZHONG Shu, XU Jianping, SHA Jin
2014, 27(3): 455-461. doi: 10.3969/j.issn.0258-2724.2014.03.014
Abstract:
In order to solve the problem that DC-DC converter switch has a large steady-state output voltage ripple in pulse train (PT) control, a variable width pulse train (VWPT) control method was proposed after analysis of the generating mechanism of large output voltage ripples. The VWPT control method is...
Optimization Design of Mathematical Morphology Filter Based on Quantum Genetic Algorithm
ZHANG Xiaochen, GAO Hongli, HUANG Haifeng, GUO Liang, XIAO Shide
2014, 27(3): 462-469. doi: 10.3969/j.issn.0258-2724.2014.03.015
Abstract:
To deal with the structuring element optimization of mathematical morphology filter, an optimization design method of mathematical morphology filter based on quantum genetic algorithm was proposed. The quantum genetic population was initialized according to the characteristic of mathematical morphol...
Dynamic Behaviors Analysis of a Class of Complex-Valued Neural Networks with Mixed Time Delays
XU Xiaohui, ZHANG Jiye, ZHAO Ling
2014, 27(3): 470-476. doi: 10.3969/j.issn.0258-2724.2014.03.016
Abstract:
To apply the complex-valued neural networks to pattern recognition, the dynamical behaviors of the equilibrium point of a class of complex-valued networks with mixed time delays were investigated. Assuming that the activation functions satisfy the global Lipschitz condition, some sufficient conditio...
Real-Time Object Tracking Based on Hough Ferns
QUAN Wei, CHEN Jinxiong, JIANG Yongquan, YU Nanyang
2014, 27(3): 477-484. doi: 10.3969/j.issn.0258-2724.2014.03.017
Abstract:
In order to deal with the tough problem of providing high accuracy and meanwhile achieving real-time tracking using Hough-based approaches under very limited samples for training, a Hough ferns based method was proposed for object tracking. This method uses the random ferns as the basic detector. It...
Barrier-Free Design of Passenger Trains in China
XIANG Zerui, XU Bochu, ZHI Jinyi, DONG Shiyu, GUO Xiaofeng, ZHANG Yong
2014, 27(3): 485-493. doi: 10.3969/j.issn.0258-2724.2014.03.018
Abstract:
To find out the solution for barrier-free design of passenger trains in China, three models were proposed by analyzing the passengers' special needs, including the demand model of passenger with reduced mobility, the accessible passageway model of coach, and the basic layout model of wheelchair acce...
Stability Research for Parallel Operation of Diesel Generator Sets
LI Donghui, ZHANG Jundong, JI Yulong
2014, 27(3): 494-498. doi: 10.3969/j.issn.0258-2724.2014.03.019
Abstract:
In order to analyze quantitatively the stability of parallel operation of diesel generator sets and monitor the state of generators being out of step during development of a simulator for the ship power system, calculation formulae for parameters of the swing angle were deduced. An on-line algorithm...
Scheme for Optimal Energy-Efficient and Resource Allocation in OFDM-Based DF Relay Link
HUANG Gaoyong, FANG Xuming, HUANG Bo, CHEN Yu
2014, 27(3): 499-506. doi: 10.3969/j.issn.0258-2724.2014.03.020
Abstract:
The resource allocation problem in OFDM-based DF-Relayed link was formulated as a joint optimization of subcarrier pairing and power allocation while maximizing energy efficiency (EE) with both the minimum rate and the total transmission power constraints. It is proved that the optimal energy-effici...
Reliability Model for Failure Dependence Direction of Mechanical Components
LIANG Hongqin, TANG Jiayin, HE Ping, WANG Jianpeng
2014, 27(3): 507-512. doi: 10.3969/j.issn.0258-2724.2014.03.021
Abstract:
In order to determine the dependence direction of correlated failures in the reliability calculation of mechanical structural systems, a reliability variable determination model was established under a linear regression background according to properties of the linear dependent coefficient. Using th...
Corrosion Rate Test of Cable Wires of Large Span Bridge
MIAO Changqing, WEI Tinghua, WANG Yichun, WANG Man
2014, 27(3): 513-518. doi: 10.3969/j.issn.0258-2724.2014.03.022
Abstract:
In order to explore the corrosion law of large span bridge cables, cylindrical corrosion electrodes were prepared according to the actual corrosion state of bridge cable wires, and the electrochemical corrosion rate of the high strength-steel wires were investigated by orthogonal experiment design a...
Verification of Stent Mechanical Formulas by “Planar Stent” Experiment
YANG Jie, YANG Ji, XU Jiang, LIU Yujie, HUANG Nan
2014, 27(3): 519-524. doi: 10.3969/j.issn.0258-2724.2014.03.023
Abstract:
To verify the formulas of elastic radial stiffness and plastic limit pressure of stents, the conception of "planar stent cell" was proposed and a planar stent specimen was produced according to the real curved structure of an intravascular stent. Tensile experiments of "planar stent cell" were then ...
Chaos Control of Lauwerier Mapping
GUO Feng, XIE Jianhua, YUE Yuan
2014, 27(3): 525-529. doi: 10.3969/j.issn.0258-2724.2014.03.024
Abstract:
In order to overcome the defect that the properties of the original system is changed in the process of chaos control with external excitation or damping, the OGY control method is combined with the pole placement technique of the linear control theory to establish a linear mapping. By applying the ...
Accelerated Fatigue Test in Vitro of the New Mechanical Heart Valve
WU Liangliang, ZHOU Feng, SUN Hong, WANG Jin, LIU Li, HUANG Nan
2014, 27(3): 530-535. doi: 10.3969/j.issn.0258-2724.2014.03.025
Abstract:
In order to evaluate the opening and closing states and fatigue properties of a new type of polyoxymethylene heart valve, accelerated fatigue tests were performed on the polyoxymethylene heart valve and an ON-X heart valve using the heart valve prostheses fatigue tester (TH-2200). The opening and th...
Field Measurement of Automobiles’ Lateral Accelerations
XU Jin, YANG Kui, LUO Qing, SHAO Yiming
2014, 27(3): 536-545. doi: 10.3969/j.issn.0258-2724.2014.03.026
Abstract:
To provide design basis for alignment parameters of different types of highways, the lateral accelerations, speeds, and trajectory curvature radii of passenger cars and buses on 12 highways having different design speed and topography were collected in field survey. The level of driving comfort on e...
Identification of Prevalent Air Traffic Flow in Terminal Airspace Based on Trajectory Spectral Clustering
WANG Chao, HAN Bangcun, WANG Fei
2014, 27(3): 546-552. doi: 10.3969/j.issn.0258-2724.2014.03.027
Abstract:
In order to improve the adaptability of terminal airspace and standard arrival/departure routes to real air traffic flows and their spatial distribution, a method for detection of main air traffic flows in massive flight trajectories was addressed. After analysis of the spatial characteristics of tr...
4D Trajectory Prediction Based on BADA and Aircraft Intent
ZHANG Junfeng, JIANG Haihang, WU Xiaoguang, TANG Xinming
2014, 27(3): 553-558. doi: 10.3969/j.issn.0258-2724.2014.03.028
Abstract:
In order to improve the trajectory prediction accuracy, a new four-dimensional aircraft trajectory prediction approach was presented, which was based on aircraft performance data and aircraft intent. Firstly, through statistical analysis of historical radar data about aircraft trajectories, an aircr...