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2012 Vol. 38, No. 4

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Adaptive tracking control method for nonlinear trajectory
Miao Cunxiao, Fang Jiancheng, Sheng Wei
2012, (4): 427-431.
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For flight trajectory tracking accuracy and quality problem of small unmanned aerial vehicle (SUAV), an adaptive tracking control method for nonlinear trajectory was proposed. Waypoints were fitted utilizing five-order B-spline to built nonlinear desired trajectory. The location and crossing heading...
Design and working mode analysis of dissimilar redundant actuator system
Fu Yongling, Pang Yao, Liu Hesong, Wang Lijian
2012, (4): 432-437,443.
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The dissimilar redundant actuator system gets rid of central hydraulic power and avoids the common fault effectively, which is consistent with the development trend of more electric aircraft. Based on the load characteristics matching method, a dissimilar redundant actuator system made of electro-hy...
Three solution models of lateral frequencies of stiffening cylindrical shell
Xing Yufeng, Pan Zhongwen, Yang Yang
2012, (4): 438-443.
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The equivalence methods of area and moment of inertia were studied for the stringers in stiffening cylindrical shell, and the accuracy of moment of inertia when the area was equivalent, and the accuracy of area when the moment of inertia is equivalent were investigated respectively. The concept of c...
Detection of the number of sources using peak-to-average power ratio modified by Gerschgorin radii
Jiao Yameng, Huang Jianguo, Hou Yunshan
2012, (4): 444-448.
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Aiming at solving the problem of improving detection ability of unmanned underwater vehicle. An information criterion for source number detection with the peak-to-average power ratio modified by Gerschgorin radii (PGAIC) was proposed. The method first employed eigenvectors of the sample covariance m...
Comparison of experimental ground testing and computational fluid dynamics for S-shaped inlet and JT15D-4 engine
Li Dawei, Ma Dongli, Chen Xiaolong
2012, (4): 449-452,458.
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The S-shaped inlet working with the turbofan engine was discussed by using ground test and computational fluid dynamics (CFD) codes. A full scale S-shaped inlet model had been made of glass fiber reinforced plastic. The model was installed in front of the JT15D-4 turbofan engine, with the results ob...
Method of missile tracking in images based on ordered weight residual resampling particle filter
Zheng Hong, Sui Qiangqiang, Sun Yuquan
2012, (4): 453-458.
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There were many problems existing in the missile alarm and tracking for aircrafts, such as 2D missile motion modeling, the nonlinearity of the motion model and the non-Gaussian of the interference. The motion pattern of the proportional navigated missile from the 3D space to the camera imaging plane...
New system calibration method for strapdown inertial navigation system
Zhang Huaqiang, Zhao Yan, Chen Yu
2012, (4): 459-463.
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Focusing on different types of strapdown inertial navigation system (SINS) having great difference on measuring range and dynamic performance, a novel SINS calibration method using centrifuge and turntable was proposed. The turntable was installed on the centrifuge. By adjusting the attitude of the ...
Parameter identification of diesel fuel injection system model using genetic algorithms
Li Runing, He Yongling
2012, (4): 464-467,472.
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The changing of pressure in the diesel injection system results in the growth and collapse of gas bubbles, which affects the diesel flowing and pressure. In order to predict the initial void fraction and changes in the diesel injection system, the method using improved genetic algorithms in paramete...
Fast-convert ultrasonic frequency pulse GTAW arc behavior
Yang Mingxuan, Qi Bojin, Cong Baoqiang, Li Wei
2012, (4): 468-472.
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Based on ultrasonic frequency pulse gas tungsten arc welding(GTAW) power, the out current with di/dt≥50A/μs for the ultrasonic fast current rate of rise and fall was achieved. The arc behavior was investigated in the use of ultrasonic frequency pulse tungsten inert-gas welding for 0Cr18Ni9Ti stainle...
Ionosphere hybrid modeling method for short-wave ray tracing
Li Weimin, Su Donglin, Yan Zhaowen, Liu Yan
2012, (4): 473-477.
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Based on the international reference ionosphere (IRI) and the quasi-parabolic segments (QPS) model, a new ionosphere hybrid modeling method for short-wave ray tracing was proposed. The group ranges which show the short-wave propagation trace in the ionosphere were obtained separately by simulation i...
High precision calibration method for three-cluster FOG
Zhang Xiaoyue, Yang Gongliu, Zhang Chunxi
2012, (4): 478-481,486.
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For three-cluster fiber optic gyro(FOG), calibration model was defined. The calibration error induced by earth rotation and interference among various parameters was analyzed theoretically. A high precision calibration method was presented, in which every parameter was tested separately, including b...
Transmittance measurement system based on triple-junction solar cells
Zhao Huijie, Tang Wu, Zhang Ying, Zhang Qingxiang
2012, (4): 482-486.
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The degradation of solar cells’ coatings in space environment will shorten space aircraft’s fight life. So the research of the system which can measure the coatings transmittance’s change is important. The transmittance measurement system was constructed by two triple-junction solar cells, one of wh...
Application of hybrid rocket motor on manned lunar landing
Zhu Hao, Tian Hui, Cai Guobiao
2012, (4): 487-490,496.
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A primary optimal design of manned lunar ship with hybrid propulsion system was proposed. After researching on the manned lunar plans of the main space industry countries and regions and analysis of "Apollo" lunar module, based on hybrid rocket motor system design model, a genetic arithmetic was use...
Method of transfer alignment of distributed POS for airborne remote imaging
Gong Xiaolin, Fang Jiancheng
2012, (4): 491-496.
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Aiming at the precision alignment of distributed position and orientation system(POS) for airborne remote imaging, the errors which affect the transfer alignment accuracy and velocity were analyzed and the real circumstance of remote imaging was considered. Based on these, a transfer alignment metho...
Analysis on effect of mental workload on preattentive processing
Wanyan Xiaoru, Zhuang Damin, Liu Wei
2012, (4): 497-501.
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To investigate the effects of mental workload related to flight task on the preattentive processing, 14 subjects performed a flight simulation task under different mental workloads, and the mismatch negativity (MMN) was recorded as evaluation index. The subjects were asked to perform the whole proce...
Similitude investigation for ground experiment of spacecraft
He Zhaowei, Shi Peng, Ge Bing, Zhao Yushan
2012, (4): 502-508.
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The similitude problem for ground experiment of spacecraft was investigated. Dimensional analysis was revisited and employed to develop the necessary similarity conditions, and the constraints on the application of these similarity conditions were also discussed. The activity analyses of the states ...
Analysis of tail-slaps of supercavitating vehicle influenced by distortion of cavity shape
He Qiankun, Wei Yingjie, You Tianqing, Zhang Jiazhong
2012, (4): 509-512,518.
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The tail-slaps of supercavitating vehicle and the distortion of cavity shape are coupling with each other. The coupling motion equation of supercavitating vehicle was established and the tail-slaps of the vehicle influenced by the distortion of cavity shape were also analyzed in different conditions...
Combined simulation system design for trajectory planning of spacecraft proximity guidance
Liu Tao, Zhao Yushan, Shi Peng, Li Baojun
2012, (4): 513-518.
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Aiming at simulating and verifying trajectory planning for spacecraft proximity guidance, a combined simulation system based on Visual C+ +, Vega Prime and Matlab was developed. The mathematical model of the problem was presented. Then the model was solved and optimized using Matlab, and the positio...
Error auto-compensation technology of inertial navigation system based on double-axis rotation
Yang Guoliang, Wang Wei
2012, (4): 519-524.
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To solve the problem that the gyro drift decreased the long-time navigation accuracy, a new auto-compensation scheme with double units was put forward. The constant gyro drifts could be modulated in all directions by continuous rotation, so as to improve the accuracy of the inertial navigation syste...
Hybrid reliability analysis method based collaborative optimization
Wang Xinghao, Ma jiming, Zeng Shengkui, Zhao Xuemei
2012, (4): 525-528,534.
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The reliability analysis in the multidisciplinary design optimization (MDO) process causes great computational cost. Aiming to this problem,two kinds of existing reliability analysis methods were integrated into the collaborative optimization(CO), and hybrid reliability analysis based CO method was ...
Multi-excitation source united controlling test method based on distributed actuation
Yao Jun, Wu Yanfei, Yao Yihong
2012, (4): 529-534.
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In view of the questions of high-speed aircraft withstanding complicated vibration environment, their vibration durability could not being plenary examined by existing vibration test technology, a vibration test technique integrating piezoelectric element, vibration table, exciter was proposed, the ...
Static modeling method and characteristic analysis of exception propagation network
Qiu Xiang, Zhang Li
2012, (4): 535-540.
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In area of the exception handling, exception propagation is of catholic concern. Previous researchers focused more on exception propagation paths and the source of a thrown exception but ignored the networked characteristic of exception propagation. An exception propagation networked model was propo...
Swarming aircraft collaborative localization based on mutual rangings
Liu Juncheng, Zhang Jingjuan, Feng Peide
2012, (4): 541-545.
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In the environment of net-centric war, collaborative localization based on mutual rangings is proposed to improve the inertial positioning accuracy of the swarming aircraft when global positioning system (GPS) is unbelievable. The collaborative localization system, which was mainly composed of the i...
Method based on network flow simulation for sneak circuit analysis
Zou Tao, Ma Qishuang
2012, (4): 546-550.
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To solve the too many constraints problem in sneak circuit analysis of clue table method, network flow simulation was applied in sneak circuit analysis based on the research of artificial neural network (ANN) analysis method. Electrical elements- qualitative simulation models were established and ci...
Trajectory of a spacecraft with constant radial thrust
Zhang Hao, Shi Peng, Zhao Yushan, Li Baojun
2012, (4): 551-556.
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The trajectory of a spacecraft under constant radial thrust was studied. Great deals of efforts were dedicated to investigate the boundedness and periodicity. The case of elliptic parking orbit was focused. First, the equations of motion were formulated in polar coordinates and simplified into quadr...
Buckling analysis and experiment of open cylindrical thin shells under axial load
Zhang Zhanzhi, Zhao Guowei, Huang Hai, Huang Chengjing
2012, (4): 557-562.
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The axial load-bearing capacity and stability of open cylindrical thin shells is a key point in the mechanism design of storable tubular extendable member (STEM). Based on eigenvalue buckling analysis, the relationship between the buckling loads and the design parameters of open cylindrical thin QBe...
Investigation and enhancement of hole mapping method
Yuan Wu, Yan Chao, Xi Ke
2012, (4): 563-568.
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In order to reduce the storage of the traditional hole mapping method, a minimum hole mapping algorithm was presented which expands the concept of closure. Wall surface was allowed to terminate on truncation surface of grids, which would efficiently reduce the area of hole mapping and save the stora...

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