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2003 Vol. 29, No. 1

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Simulation Platform Based on HLA for Air Defense Missile Weapon System
Zhang Yuhong, Hu Yahai, Peng Xiaoyuan, Feng Qin
2003, 29(1): 1-4.
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Abstract:
A synthetic simulation platform including virtual reality technology based on high level architecture is introduced. The platform is used to support air defense missile weapon system simulation. The structure and development process of the platform are presented. The related key technologies for con...
Realization of a Programmable Radar Echo Simulator Based on PCI Bus
Huang Zhigang, Liu Zhongkan, Wan Guolong, Shan Dongmei
2003, 29(1): 5-8.
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To improve the performance of current radar echo signal simulators, a scheme was advanced with computer PCI bus-organization, high speed FIFO and D/A. With the realization of this scheme, the simulator exhibits a data updating speed as high as 8 MHz and a signal conversion speed as high as 73 MHz. T...
Novel ICT Scan Mode and Its FBP Reconstruction Algorithm
Fu Jian, Lu Hongnian
2003, 29(1): 9-12.
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It is well known that Industrial Computed Tomography (ICT) is hampered by the matter of time to acquire an image severely. A scan concept called RR (Rotation and Rotation) was argued to save the scan time of large components ICT testing with TR(Transverse Rotation). Its reconstruction algorithm base...
Genetic Algorithm for the Scheduling of Public Traffic Vehicles in ITS
Teng Jitao, Zhang Feizhou, Li Yaopeng, Fan Yuezu
2003, 29(1): 13-16.
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Advanced Public Transportation System(APTS) is very important for the development of the subsystems of an Intelligent Transportation System (ITS). Vehicle Scheduling is a key technology of APTS. To improve the intelligence of vehicle scheduling, a new Genetic Algorithm(GA) based method for intellige...
Design of Test Software in Base Station for Navigation  under Windows Environment
Zhao Qi, Zhang Xiaolin
2003, 29(1): 17-19.
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A model of test software in pilotless helicopter base station for navigation is introduced. Design of test software for navigation is discussed. The software is based on Windows platform. It has a visual and self-contained visualization interface. One of the characteristics is easy and simple to ope...
Method for Fatigue Test of Aircraft StructuresConsidering Corrosion Influence
He Xiaofan, Liu Wenting, Jiang Dongbin
2003, 29(1): 20-22.
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Abstract:
Considering the influence of corrosive environment, a valuable method for fatigue test of aircraft structures at room temperature and in the air is presented. The service process of an aircraft is simplified into pre-corrosion under the ground environment and corrosion fatigue during flight, and cor...
PostStall Maneuver Control Law for Aircrafts with New Control Configuration
Zhang Ping, Wang Dong, Chen Zongji
2003, 29(1): 23-26.
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A post-stall maneuver control law for aircraft with new control surfaces and trust vectoring control is proposed. The air dynamical data table is operated by minimal mean-square value of the error between the air data and the combined continued functions. The 6 freedom nonlinear dynamical equations ...
Transfinite Interpolation Grid Generation with the Application of B Spline
Yu Rixin, Zhu Ziqiang
2003, 29(1): 27-30.
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A grid generation method by applying B spline curve lines and surfaces to transfinite interpolation approaches is suggested. Numerical results demonstrate that detailed information about geometry shape can be included and so the method can be used to different complex geometries. Discussions are als...
Numerical Simulation Method of Acoustic Fatigue of Composite Structures
Du Sanhu, Li Zailiang, Yang Jialing
2003, 29(1): 31-34.
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Acoustic fatigue of composite structures concerns many researchers. Numerical simulation is often used to deals with this problem. In this paper, BEM is used to simulate the dynamic response of composite structures, and a numerical simulation method of acoustic fatigue of composite structures is pre...
Modeling and Dynamics Analysis of LiquidFilled Flexible Spacecraft
Jia Yinghong, Xu Shijie, Nie Runtu
2003, 29(1): 35-38.
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This paper deals with the modeling problem of a spacecraft consisting of a liquid-filled rigid platform and some flexible appendages. The spacecraft is modeled by using the Kane's equations. Hybrid-coordinate and spring-mass equivalent model for liquid sloshing are adopted in the modeling. With two-...
Effects of Geometry Parameters and Flow Parameters on Drag Coefficient of Upswept Afterbodies
Kong Fanmei, Hua Jun, Feng Ya'nan, Qiu Dong
2003, 29(1): 39-42.
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Abstract:
The flows over upswept afterbodies were investigated by a numerical method based on 3D compressible N-S equations, in order to study effects of geometry parameters and flow parameters on drag coefficient of upswept afterbodies. The results showed that the pressure drag coefficient increases rapidly ...
Digital Interface for OpenLoop FOG
Yang Yuanhong, Zhang Weixu, Jiang Xinliu
2003, 29(1): 43-45.
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Abstract:
To improve the performance of open-loop fiber-optical gyroscope (FOG), a mathematical model was presented to get its linear digital output. Based on this model, a digital interface was designed, which is a micro-control system consisting of gain control-able A/D converter and control software and ab...
Experiments on Performance of a Molecular Sieve Oxygen Concentrator System
Sun Bin, Xiao Huajun, Yuan Xiugan, Qian Guocheng
2003, 29(1): 46-49.
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The prototype of a molecular sieve oxygen concentrator system (MSOCS) was developed, on the principle of PAS. Various intake pressures,output flow of MSOCS, altitude pressure and the environment temperature tests were tested to analyze its performance of generating oxygen. The results showed that th...
Rectification of Imaging Device Defections in Real Time Radiographic Inspection
Du Jian, Wei Dongbo, Lu Hongnian
2003, 29(1): 50-53.
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Converter screen and CCD camera are the main imaging devices in real time radiographic inspection. Their defections are important factors affecting image quality. Based on experimental results, formation and characteristics of these defections were analyzed, a new mathematic model and a rectificatio...
Experimental Studies on GasOxygen/Alcohol MultiPipe Igniter
Wang Yibai, Liu Yu, Qin Lizi, Ma Bin
2003, 29(1): 54-58.
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Abstract:
Multi-pipe synchronous ignition technique is one of the key techniques of aerospike engine. Design and experiments of a gas-oxygen/alcohol multi-pipe igniter were introduced. The key factors influencing multi-pipe ignition were studied, which include propellants mixture ratio, time of igniting, mate...
Dynamic Characteristics Calibration and Dynamic Performance Improvement of Infrared Carbon Dioxide Sensor
Wu Xiaoli, Zhang Guangjun
2003, 29(1): 59-62.
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Abstract:
An experimental method was presented to calibrate dynamic characteristics of an infrared carbon dioxide sensor. A dynamic mathematic model of infrared carbon dioxide sensor was established. The design process of the dynamic compensation filter was given, and the various factors influencing the compe...
Study on Integrated Knowledge Model of Product Conceptual Design in CPC Environment
Zeng Lingwei, Deng Jiati
2003, 29(1): 63-66.
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In order to emphasize the position of supply chain in conceptual design phase and support the development of CACD systems, this paper provides an integrated CORE model to represent the conceptual product knowledge by referencing the software component techniques. Based on the integrated model, a pro...
Analysis on Response of Straight Tube CoriolisMassFlow Meter under Pulsating Flow
Fan Shangchun, Song Minggang
2003, 29(1): 67-71.
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Abstract:
The measurement error of Coriolis mass-flow meter is based on the vibration characteristics of the elastic tube of flow meter. In this paper, the influence of pulsating flow on performance of Coriolis mass-flow meter is analyzed, with the straight tube Coriolis mass-flow meter as the investigated ob...
SMA PseudoRubber Metal and Its Application in Vibration Control
Yan Xiaojun, Li Haiyan, Nie Jingxu
2003, 29(1): 72-75.
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By virtue of the superelasticity of Shape Memory Alloys(SMA) characterized by its hysteresis stress-strain curve, SMA pseudo-rubber metal damping units were developed and evaluated. On the above basis, a new type of SMA damper was designed and tested. It was shown that SMA damper possesses greater r...
NonLinear Filtering Method for Emissivity Correction ofPCB Infrared Thermal Images
Wan Jiuqing, Li Xingshan
2003, 29(1): 76-78.
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In the diagnosis of Printed Circuit Board (PCB) based on infrared radiation, emissivity correction must be performed on the thermal image to retrieve the true temperature distribution on the PCB surface. Taking the measured PCB surface temperature as a combination of its true temperature distributio...
Method of Correcting INAS Error Based on LandmarkImage Messages
Chen Dazhi, Zhang Guangjun
2003, 29(1): 79-82.
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A method of correcting INAS error based on landmark-image messages is described, emulating results are presented. Using landmark-imaging system on the photoelectrical platform, the position of a plane can be worked out through landmark-image detecting, image transforming, matching orientation and co...
Modified MPS Method for Nonlinear Dynamic Problems
Guo Jun, Tao Zhi
2003, 29(1): 83-86.
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A modified moving particle semi-implicit (MPS) method was presented. Neighbor interaction models for differential operators are presented, without the use of ghost nodes to deal with boundary conditions. The performance of the proposed method was demonstrated by solving Burgers's equations. It was s...
Early RubImpact Fault Diagnosis Based on Wavelet Packet Decomposition
Song You, Liu Zhongkan
2003, 29(1): 87-90.
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Abstract:
Rub-impact signal detection between rotor and stator is investigated. The features of no rub-impact and early rub-impact are analysed based on the wavelet packet decomposition, which is sensitive to the singularity of signal and able to offer a richer resolution in frequency band than wavelet decomp...
Design of MotorDrive Load Simulator with Small Torque Outputs
Ren Zhiting, Jiao Zongxia
2003, 29(1): 91-94.
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Motor-drive load simulator with small torque outputs was designed, its stability and dynamic performance were analyzed. Based on an introduction to the structure and principle of electrical loading system, a mathematical model of the system was put forward to analyze and to simulate its stability an...

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