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2012 Vol. 38, No. 8

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Novel sliding-mode guidance law for supercavitating vehicles based on wake information
Li Huifeng, Zhang Rentian, Song Jia
2012, 38(8): 987-991.
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A novel sliding-mode guidance law was proposed making use of gradient information of ship wakes, to tackle the problems in current supercavitating vehicle such as poor maneuvering capability and limited detection methods.The wake gradient direction was dynamically determined according to the wakes o...
Improved determination algorithm using two vector measurements
Jiang Jie, Wang Yinglei, Zhang Guangjun
2012, 38(8): 992-995.
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To improve the spacecraft attitude determination accuracy and the computational efficiency of attitude matrix, an improved TRIAD algorithm was proposed. In this algorithm, the two observation vectors was weighted utilizing the variance of the measurement system, the weighting coefficient was selecte...
Optimal design of nominal attack of angle for re-entry vehicle
Li Huifeng, Zang Ran
2012, 38(8): 996-1000.
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The design of nominal attack of angle is important for re-entry vehicle. It is also a challenge because of constrains such as air heating, loading and dynamic pressure. A rapid optimal design method for nominal attack of angle was proposed. First the path constrains were converted into control const...
Fresnel transform based invariant moments extraction and object recognition method
Xue Bindang, Xing Yanqi
2012, 38(8): 1001-1004,1063.
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An invariant moments feature extraction method based on Fresnel transform was proposed, and applied to image recognition. The original image was mapped into the Fresnel diffraction projection space by using the Fresnel transform. The geometric or orthogonal moment invariants were extracted in the di...
Experimental analysis on NOx generation and emission distribution off aviation afterburners
Wang Qi, Hu Xiaomin
2012, 38(8): 1005-1009.
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An afterburners was designed to get aviation engine extra thrust, but higher inlet temperature will generate higher NOx emission. One V style structure test facilities was adopted as an afterburners flow fields stabilizer, the section concentration of different NOx and O2 emission from the afterburn...
Adaptive chaos hybrid multi-objective genetic algorithm based on the Tent map
Nie Rui, Zhang Weiguo, Li Guangwen, Liu Xiaoxiong
2012, 38(8): 1010-1016.
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A modified algorithm which realized the tent map on the computer was proposed to deal effectively with the problem of fixed point and the small periodic of the tent map, which affected by the finite word-length of computer. The chaos research algorithm based on the modified Tent map was introduced t...
High precision periodic control method of control moment gyro gimbal system
Xu Xiangbo, Li Haitao, Xue Lijuan, Yang Lianhui
2012, 38(8): 1017-1021.
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In order to realize high periodic precision control of control moment gyro (CMG) gimbal system, a controller consisted of proportiona integration differention (PID) controller and plug-in repetitive controller was adopted. PID controller can realize high precision control of static state and uniform...
Main parameters of multi-purpose guided missile fuse and warhead optimization
Du Zheng, Wang Chaozhi
2012, 38(8): 1022-1026.
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For the current deficiencies of multi-purpose guided missile kill probability model against helicopter, the importance of vulnerability blade unit factors concept was introduced, laser fuse actuation model and warhead condition kill probability model of rotor blades were established by Monte Carlo m...
Drive line modeling and shift characteristic simulation of automatic transmission powertrain system
Dai Zhenkun, Liu Yanfang, Xu Xiangyang, Wang Shuhan
2012, 38(8): 1027-1031.
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Based on the dynamic characteristic of the shifting elements of automatic transmission while shifting, a kinetic mathematic model of the shifting process was set up. Engine model was set up with engine speed, throttle and drive mode as parameters. The shifting strategy was designed with the vehicle ...
Propagation of engineering change based on characteristic linkage perspective
Yang Fan, Tang Xiaoqing
2012, 38(8): 1032-1039.
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The propagation of change from characteristic linkage perspective was analyzed. The characteristic relations were categorized into two types, and their propagation features were discussed. Two modes of change propagation were elicited and the process model of change propagation was proposed. The mod...
Optimization of repairable spare parts based on combat unit mission success
Wang Rui, Li Qingmin, Ruan Mingzhi, Peng Yingwu
2012, 38(8): 1040-1045.
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After analyzing combat unit mission and support flow of spare parts, combat unit mission success evaluation model in two-echelon support system was established based on the METRIC principle, which hot redundancy and cold redundancy of equipment systems were taken into account. The stock cost was tak...
Investigation on scale factor and output nonlinearity in resonator micro-optic gyro
Hong Lingfei, Zhang Chunxi, Feng Lishuang, Yu Huaiyong
2012, 38(8): 1046-1050.
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The output nonlinearity of the resonator micro-optic gyro (RMOG) becomes significant along with the increase of the rotation rate. The influence on the scale factor and output nonlinearity by bias-frequency-modulation rate was theoretically analyzed. Corresponding to the resonant characteristics of ...
Self-adaption link-quality detection algorithm for data collecting in OSN
Wang Xiao, Wu Yinfeng, Yu Ning, Wan Jiangwen
2012, 38(8): 1051-1055.
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In order to implement the data collecting in opportunistic sensor network (OSN), a self-adaption link-quality detection algorithm (SLDA) was proposed to enhance the prediction accuracy of the link and the data transmission rate. The new scheme adopted self-adaptive link-quality detection strategy to...
Fault localization based on non-parametric hypothesis testing model
Ye Gang, Li Zhongwen, Yu Dan, Ma Shilong
2012, 38(8): 1056-1063.
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The size of failed runs and the distributions of the evaluation biases on the Siemens suite were investigated. The empirical results show that the precondition for the central limit theorem and the assumption on feature spectra forming normal distributions are not well-supported by empirical data. T...
Reliability-based robust optimization design for rubber fluid cell forming process
Wang Miao, Li Dongsheng, Li Xiaoqiang, Yang Weijun
2012, 38(8): 1064-1069.
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The inherent variations that exist in aluminum alloy sheet properties, process parameters and other random factors effect forming quality of rubber fluid cell forming process. Oriented to precision manufacturing of aircraft, a reliability-based robust optimization design approach for rubber fluid ce...
Digital simulation model design and analysis of piezoelectric cantilever beam smart elements
Wang Lei, Ren Bingyin, Zou Hornsen
2012, 38(8): 1070-1074,1095.
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According to the vibration control of piezoelectric laminated structronic thin shell system, a new method for vibration characteristic analysis by using special digital circuit model of smart elements was presented. By means of the finite difference discretization method, the dynamic partial differe...
Space time interleaving code
Sun Peng, Li Daoben
2012, 38(8): 1075-1079.
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Multi input multi output system in frequency selective channel provides space and frequency diversity at the same time. Traditional space time codes suffer from rate loss or diversity order loss. Space time interleaving code (STIC) achieves full space and frequency diversity without rate loss. Rando...
Novel circuit of memristor and its chaotic dynamics characteristics
Wang Xiaoyuan, Qi Weigui, Wang Xingyuan
2012, 38(8): 1080-1084.
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A new method of memristor circuit implement was presented. This way is based on the definition of flux-control memristor, firstly, the flux was constructed, and then using the flux to control the memductance which was embodied by the photocell of the light dependent resistor (LDR). Finally, an analo...
Root extending section of turbine blade modeling method based on guide curves
Zhu Qian, Ning Tao, Xi Ping
2012, 38(8): 1085-1089.
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Root extending section of turbine blade is a kind of complex transition surface, of which the design process is complicated. According to geometric and structural characteristics of root extending section, a modeling method based on guide curves was provided. It initially generates guide curves by u...
Decomposition method of equipment quality characteristic based on STT and fuzzy QFD
Guo Jingyi, Sun Yufeng, Wu Hanxue, Zhao Guangyan
2012, 38(8): 1090-1095.
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Integrative quality characteristic is an important indicator of the system project for equipment. On the basis of strategy to task technique (STT), fuzzy quality function deployment (QFD) and ADC model for evaluating weapon effectiveness, a decomposition method of equipment integrative quality chara...
Real time simulation for lunar dust blown by engine exhaust plume
Fu Xiaojing, Wang Cheng, Dai Shuling
2012, 38(8): 1096-1100.
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The spray of lunar dust at a lunar landing site is necessary for lunar soft landing simulation. For the model that predicted trajectories of lunar dust blown by the engine exhaust is too simple and the 3D visualization is not strong sense of reality, a physics-based simulation for real-time movement...
Thermal analysis of high speed permanent magnet brushless DC motor
Du Guohua, Fang Jiancheng, Liu Xiquan, Zhou Yinfeng
2012, 38(8): 1101-1105,1128.
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In order to solve the problems of reduction in magnetic performance and winding insulation damage caused by high temperature in high speed permanent magnet brushless DC motor, a series of research on temperature distribution and improvement was carried out. The thermal network mathematic model was e...
Transfer time delay model of data link and its compensation
Feng Zhonghua, Wang Xinlong, Wang Bin
2012, 38(8): 1106-1110.
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Based on the analysis of the data transmission process, models of the system service time and waiting time which affect the data transmission were established by utilizing the queue theory; An adaptive kalman filtering algorithm based on "current" statistical model was proposed to compensate the dat...
Missile launching dynamic simulation based on variation model
Kang Tian, He Weiliang
2012, 38(8): 1111-1117.
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An alternative approach to establish missile launching dynamic simulation system based on variation model was presented. The variation models were built according to their respective original sources. The variation forces and moments were added to the standard ones. The resultant was employed to sol...
Principle of machining variant curvature blending surfaces with counter torus cutter
Huang Wei, Chen Zhitong, Chen Wuyi, He Ying
2012, 38(8): 1118-1123.
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Based on the stripe-width-maximization machining theory and the principle of global curvature fitting, a novel counter torus cutter, which uses the inner surface of torus as the cutting edge, was proposed to machine the leading and trailing edge of a turbine blade. Through optimizing the raw angle o...
Orbital rendezvous control method for berthing and tracking approach
Hou Yunyi, Jing Qianfeng, Ma Guangfu
2012, 38(8): 1124-1128.
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The spacecraft orbital rendezvous technology is required for many missions, and the requirements of orbital control vary with the different tasks. In some cases, the tracker will be asked to stop in specified position temporarily; in other cases, the line-of-sight angle and trajectory are limited in...

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