• 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

2012 Vol. 25, No. 6

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Mechanical Properties of Steel-Concrete Composite Section in Space Rigid Frame
LI Xiaozhen, XIAO Lin, SU Xiaobo, WEI Xing
2012, 25(6): 907-914. doi: 10.3969/j.issn.0258-2724.2012.06.001
[Abstract](1273) PDF 971KB(531)
Abstract:
In order to investigate the mechanical properties and load transfer mechanism of steel-concrete composite section in a space rigid frame structure for high-speed railway, a section model test with a scale of 1 to 2 and nonlinear finite element analysis were carried out. The test model was loaded res...
Simplified CQC Method for Resonant Response of Long-Span Roof Structure
LUO Nan, LIAO Haili, LI Mingshui
2012, 25(6): 915-921. doi: 10.3969/j.issn.0258-2724.2012.06.002
[Abstract](1091) PDF 700KB(457)
Abstract:
In order to improve the calculation efficiency of the traditional CQC (complete quadratic combination) method, a simplified CQC method to calculate the resonant responses of a long-span roof structure, called SCQC method for short, was proposed based on the analyses of modal frequency response funct...
Human-Induced Vibration Analysis and Measurement of Long-Span Composite Floors
CAO Lilin, LI Aiqun, ZHANG Zhiqiang, ZHOU Deliang, ZHOU Chaoyang
2012, 25(6): 922-928. doi: 10.3969/j.issn.0258-2724.2012.06.003
[Abstract](1264) PDF 923KB(374)
Abstract:
In order to investigate the human-induced vibration performance of large-span composite floors, crowd excitation was simulated by the random method based on a normal footfall force curve and other individual factors such as crowd distribution and step frequency. Human-induced vibration responses of ...
Effects Analysis of Cracking of CRTSⅡ Slab Track on Subgrade
WANG Ping, XU Hao, CHEN Rong, XU Jingmang
2012, 25(6): 929-934. doi: 10.3969/j.issn.0258-2724.2012.06.004
[Abstract](1457) PDF 744KB(456)
Abstract:
In order to analyze the influences of cracking of CRTS (China railway track system) Ⅱ slab track on subgrade on a vehicle and ballastless track, a finite element model for beam body on an elastic foundation and a vertical coupling dynamical model for a vehicle-track-subgrade system were established ...
Mechanical Characteristics of Main Structure of Mining Tunnel under Water Pressure
ZHANG Zhiqiang, HE Benguo, MA Tengfei
2012, 25(6): 935-941. doi: 10.3969/j.issn.0258-2724.2012.06.005
[Abstract](1550) PDF 850KB(382)
Abstract:
In order to probe into the mechanical characteristics of main structure of a mining tunnel under the action of water pressure, model tests were carried out for investigating the mechanical characteristics of tunnel, the interaction between lining and strata and the failure modes of the structure wer...
Rational Seismic Protective Length for Portal of Railway Tunnel
GENG Ping, CAO Dongjie, TANG Jinliang, QUAN Qianlong, CHENG Bangfu
2012, 25(6): 942-948,954. doi: 10.3969/j.issn.0258-2724.2012.06.006
[Abstract](1959) PDF 938KB(530)
Abstract:
In order to determine the rational seismic protective length for tunnel portal and achieve the optimal earthquake-resistant performance, a dynamic analysis model for tunnel portal was set up to a 140 km/h single-line railway tunnel with a width of 6.4 m, the influences of surrounding rock conditions...
Measurement Method of Strata Attitude Based on Google Earth
PU Hao, YANG Xinlin, ZHAO Haifeng, LI Jian
2012, 25(6): 949-954. doi: 10.3969/j.issn.0258-2724.2012.06.007
[Abstract](1139) PDF 694KB(397)
Abstract:
In order to solve the problems of high difficulty and low efficiency in measuring strata attitude in harsh natural condition areas, a method to fulfill the fast batch calculation of shallow strata attitude in any area of the globe through C# programming was proposed by using the digital terrain and ...
Registration Method for Unmanned Aerial Vehicle Images Based on Point Feature and Edge Feature
HE Jing, LI Yongshu, LI Xin, TANG Min
2012, 25(6): 955-961. doi: 10.3969/j.issn.0258-2724.2012.06.008
[Abstract](1225) PDF 913KB(409)
Abstract:
To solve the problem of registration of unmanned aerial vehicle (UAV) images with a large distortion, an improved method based on the combination of point and line features was proposed. With this method, preparatory registration is completed by extracting point features with the scale invariant fea...
Modified Algorithm for Simulation of Injection Molding Process
SHI Jianjun, CHENG Zhiqiang, LIU Baosheng
2012, 25(6): 962-967. doi: 10.3969/j.issn.0258-2724.2012.06.009
[Abstract](1383) PDF 713KB(557)
Abstract:
In order to improve the accuracy of numerical simulation for injection molding process, a notion similar to upwind method was introduced. As the governing equation of the filling state takes the form of an advection equation, distorted simulation result may be induced by the flow of air in the mold ...
A New Time-Domain Method for Force Identification
ZHU Tao, XIAO Shoune, YANG Guangwu
2012, 25(6): 968-973. doi: 10.3969/j.issn.0258-2724.2012.06.010
[Abstract](1198) PDF 614KB(388)
Abstract:
In order to identify unknown load accurately and reduce the influence of measurement noise on identification results, a new time-domain method for dynamic load identification was proposed based on dynamic programming and Bellman optimization principle. First, the objective function between measured ...
μ-Synthesis Control for Self-powered Active Suspension of Vehicles
CHEN Yanqiu, SONG Pengyun, ZHANG Jiye, ZHANG Keyue
2012, 25(6): 974-981. doi: 10.3969/j.issn.0258-2724.2012.06.011
[Abstract](1086) PDF 761KB(427)
Abstract:
In order to improve the stability, vibration isolation, and energy feedback performance of a self-powered active suspension of vehicles, a self-powered active suspension model with parametric perturbation for 1/4 car body was built, and a dynamics analysis was made using the model. Then, a robust co...
Markov Decision Process for the Energy Management of Parallel Hybrid Vehicles
XIAO Renxin, LI Tao, QIN Ying, ZOU Gan
2012, 25(6): 982-988. doi: 10.3969/j.issn.0258-2724.2012.06.012
[Abstract](1165) PDF 712KB(341)
Abstract:
In order to study the energy management strategy of single-shaft parallel hybrid electric vehicles, dynamic equations of the power-train system were set up to analyze the non-aftereffect property of the required torque. To achieve the optimization objective of minimizing the oil consumption under a ...
Driving Cycle Construction of City Road Based on Vehicles Energy Consumption in Jinan
HUANG Wanyou, CHENG Yong, LI Chuang
2012, 25(6): 989-995,1026. doi: 10.3969/j.issn.0258-2724.2012.06.013
[Abstract](1091) PDF 870KB(359)
Abstract:
A driving cycle was constructed to guide new vehicle development and power-train optimization. Key factors that affect vehicle energy consumption, such as road slope, vehicle transient specific power, and vehicle speed, were analyzed. Taking vehicle energy consumption and road slope into considerati...
Changing Rule of Driver's Recognition Distance in Daytime and Nighttime on Freeway
CHENG Guozhu, XUE Changlong, HAN Juan
2012, 25(6): 996-1002. doi: 10.3969/j.issn.0258-2724.2012.06.014
[Abstract](1106) PDF 799KB(443)
Abstract:
In order to set the speed limit standard on freeway in daytime and nighttime and to ensure enough time for drivers to acquire information, the data of driver's recognition distance in daytime and nighttime were compared and analyzed using mathematical statistics and regression analysis methods. By s...
Comprehensive Dynamic Model Analysis of Proton Exchange Membrane Fuel Cell
CHEN Weirong, ZHANG Hanyue, LI Qi
2012, 25(6): 1003-1008. doi: 10.3969/j.issn.0258-2724.2012.06.015
[Abstract](1304) PDF 657KB(548)
Abstract:
For a further study on PEMFC (proton exchange membrane fuel cell) operation characteristics, a synthetic dynamic model with the use of MATLAB/SIMULINK was built on the basis of the combination of the experimental model and the mechanistic model of PEMFC, containing a voltage dynamic model, a hydroge...
Insulation Life Model and Partial Discharge Characteristic of Magnet Wires under Square Pulse Voltage
CAO Kaijiang, XU Yue, WU Guangning, XU Huihui, ZHANG Yiqiang, LUO Yang
2012, 25(6): 1009-1014. doi: 10.3969/j.issn.0258-2724.2012.06.016
[Abstract](1021) PDF 643KB(307)
Abstract:
In order to investigate the aging and failure mechanism of insulation under square pulse voltage, an insulation life characteristic device for high frequency and high impulse voltage and a partial discharge (PD) test system were adopted. PD activity and its impact factors as well as life characteris...
Design and Implementation of Boost Type Active Power Factor Correction Controller IC
DAI Guoding, MA Xiaohui, OU Jian, XUE Chaoyao, MA Renyue, LU Jing
2012, 25(6): 1015-1020. doi: 10.3969/j.issn.0258-2724.2012.06.017
[Abstract](1079) PDF 689KB(374)
Abstract:
A boost type active power factor correction controller based on the critical mode control technology was proposed to restrain harmonic currents and improve the efficiency of electrical power. A total harmonic distortion optimizer circuit was specially integrated to solve the crossover distortion pro...
Series Resonance Analysis Based on Branch-Circuit Method
WANG Bin, JIANG Xiaofeng, GAO Shibin, QIU Zhongcai
2012, 25(6): 1021-1026. doi: 10.3969/j.issn.0258-2724.2012.06.018
[Abstract](998) PDF 662KB(389)
Abstract:
A frequency spectrum analysis technology based on the branch-circuit method was proposed to effectively analyze the branch harmonic over-current caused by series resonance in power systems. The proposed method was tested on the three-bus and IEEE 14-node systems and compared with the modal analysis ...
Algorithm of Distributed Frequent Closed Patterns Mining
YANG Junrui, ZHANG Min, HE Hongde
2012, 25(6): 1027-1033. doi: 10.3969/j.issn.0258-2724.2012.06.019
[Abstract](1059) PDF 892KB(472)
Abstract:
In order to improve the mining efficiency, an algorithm, PFCI-Miner, based on distributed frequent closed patterns mining was proposed. This algorithm adopts a master-slave structure to implement task distribution. The master processor assigns a task efficiently by sending a proposed prefix path tab...
Two-Step Hybrid PSO-Based Clustering Algorithm
WANG Zonghu, LIU Zhijing, CHEN Donghui
2012, 25(6): 1034-1040,1063. doi: 10.3969/j.issn.0258-2724.2012.06.020
[Abstract](1166) PDF 1134KB(423)
Abstract:
In order to solve the problems of the existing PSO (particle swarm optimization) K-means algorithms, i.e., their calculation speeds are slow and the clustering results are unstable when samples have a high dimension, some high-quality sub-clusters were generated by hierarchical agglomerative cluster...
Product Remanufacturing and Pricing Decisions and Supply Chain Coordination of Closed-Loop Supply Chain with Dual Sale Channels
XU Bing, WU Ming
2012, 25(6): 1041-1048. doi: 10.3969/j.issn.0258-2724.2012.06.021
[Abstract](1303) PDF 910KB(464)
Abstract:
In order to analyze the impact of direct-sale channel on retail-sale channel and the effect of product remanufacturing on cost control, a Stackelberg game model between one manufacturer and one retailer under decentralized control, and a decision model of closed-loop supply chain (CLSC) under centra...
Joint Purchasing Policy for Perishable Products Based on Cooperative Game Theory
LI Jun, YUE Qing, FENG Hairong
2012, 25(6): 1049-1056. doi: 10.3969/j.issn.0258-2724.2012.06.022
[Abstract](1038) PDF 916KB(564)
Abstract:
In order to reduce purchasing cost, and maintain long competitiveness, enterprises often adopt joint purchasing policy. A cost allocation model for retailers' joint purchasing perishable items was established based on the characteristics of perishable products. In this model, the cost allocation pro...
Optimization of Railcar Flow Combination Scheme for Strategic Loading Domain Based on Heavy Haul Transportation
HAN Xuesong, ZHAO Jun, PENG Qiyuan
2012, 25(6): 1057-1063. doi: 10.3969/j.issn.0258-2724.2012.06.023
[Abstract](1144) PDF 797KB(468)
Abstract:
In order to investigate the railcar flow operation optimization of heavy haul transportation loading side, the railcar organization process in the strategic loading domain of heavy haul transportation was analyzed. According to the supply level of goods resource and transportation operation mode, th...
Low Noise Design of Cylinder Head Cover Based on Multi-objective Topography Optimization
WANG Liansheng, HAO Zhiyong, JING Guoxi
2012, 25(6): 1064-1068. doi: 10.3969/j.issn.0258-2724.2012.06.024
[Abstract](1015) PDF 631KB(499)
Abstract:
In order to reduce the structural radiation noise of a diesel engine cylinder head cover, the finite element method (FEM) and boundary element method (BEM) were used for its virtual prediction and obtained the critical modal with dominant contribution to the structural radiation noise. Considering t...
Conflict-Free 4D Trajectory Prediction Based on Hybrid System Theory
HAN Yunxiang, TANG Xinmin, HAN Songchen
2012, 25(6): 1069-1074. doi: 10.3969/j.issn.0258-2724.2012.06.025
[Abstract](1388) PDF 680KB(535)
Abstract:
In order to increase airspace capacity, the hybrid system theory was used to build a state switch model of aircraft between different segments that is based on the aircraft aerodynamics models by setting three flight status including climb, decent, and level flight as well as seven parameters of hei...
Lateral Collision Risk Model on Parallel Routes Based on Communication, Navigation and Surveillance Performances
HUANG Baojun
2012, 25(6): 1075-1080,1091. doi: 10.3969/j.issn.0258-2724.2012.06.026
[Abstract](1296) PDF 801KB(498)
Abstract:
In order to assess the parallel route spacing safety in radar control environment, air traffic controller (ATC) intervention processes for aircraft lateral deviation were analyzed. Then based on analysis of the traditional collision risk models, two lateral collision risk models on parallel routes i...
Effect of Intermediate Heat Treatment on Microstructure and Properties of FGH4095 Superalloy
XU Yi, WEI Kuan, SHU Qin
2012, 25(6): 1081-1085. doi: 10.3969/j.issn.0258-2724.2012.06.027
[Abstract](1032) PDF 724KB(415)
Abstract:
In order to study the effect of heat treatment on the distribution characteristics of γ' strengthening phase in powder metallurgy superalloy FGH4095, the FGH4095 superalloy powders were prepared by argon gas atomization. After powder screening and inclusion removal, compacts were formed by hot isost...
Grey Target Optimization of Waterproof Adhesive Material for Concrete Bridge Deck Pavement Based on Mechanical Analysis
YU Xin, LI Yingtao, LIU Yun
2012, 25(6): 1086-1091. doi: 10.3969/j.issn.0258-2724.2012.06.028
[Abstract](1370) PDF 667KB(488)
Abstract:
In order to select the optimal waterproof adhesive material that meets the stress needs of concrete box girder bridge deck pavement, taking the viaduct in widening project of the Shanghai-Hangzhou Expressway as an example, a composite structure model of the whole bridge was established using the fin...

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