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2014 Vol. 40, No. 3

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Trajectory tracking control of space robot actuated by control moment gyroscopes
Jia Yinghong, Zhao Nan, Xu Shijie
2014, 40(3): 285-291. doi: 10.13700/j.bh.1001-5965.2013.0259
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Abstract:
A new design concept of space robotic system was proposed, as well as a trajectory tracking control approach. Unlike traditional manipulator arms, the space robot employs free ball joints as manipulator link connections. A group of control moment gyroscopes (CMGs), serving as torque actuators, was m...
Analysis of adaptive random testing efficiency based on the experiment
Yin Yongfeng, Xiao Peng, Zhang Chi, Liu Bin
2014, 40(3): 292-297. doi: 10.13700/j.bh.1001-5965.2013.0265
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Abstract:
Adaptive random testing (ART) had been proposed as an enhancement of random testing with some algorithms, thus the ability of failure detection was improved. However, previous studies emphasised on the advantages of F-measure a lot but rarely considered the real testing environment. Three typical ad...
Bayesian networks and decision theory-based forward multi-step troubleshooting strategy
Yu Jinsong, Liu Hao, Wan Jiuqing, Zhang Ping
2014, 40(3): 298-303. doi: 10.13700/j.bh.1001-5965.2013.0264
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Abstract:
A forward multi-step troubleshooting strategy generation algorithm based on Bayesian networks and decision-theory was proposed for sequential diagnosis and maintenance problems. Troubleshooting knowledge under uncertainty was compactly represented by Bayesian network model and inference algorithm wa...
Thermal induced non-reciprocity of fiber coil in differential interference fiber optic gyroscope
Xu Hongjie, An Minghua, Xu Xiaobin, Teng Fei
2014, 40(3): 304-308. doi: 10.13700/j.bh.1001-5965.2013.0258
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Differential interference fiber optic gyroscope (DIFOG) is a new conception FOG. It can double the Sagnac signal and has the advantages of small size and high signal-to-noise ratio. In order to improve the temperature performance of DIFOG, the thermal-induced nonreciprocal error model of fiber coil ...
Air-ground coordination traffic status perception and emergency commanding system construction
Zhang Yuxiao, Wang Yunpeng, Tang Wenzhong, Li Honggang
2014, 40(3): 309-313. doi: 10.13700/j.bh.1001-5965.2013.0675
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Abstract:
The time and place of traffic incident is unpredictable. It will seriously disturb the normal traffic if not dealt with in timely manner. The space-based traffic status perception and emergency commanding system was built, and its contribution principles were proposed. The system architecture was re...
Forecasting of the China Sea ditching probability using WW3 wave model
Zheng Chongwei, Pan Jing, Huang Gang
2014, 40(3): 314-320. doi: 10.13700/j.bh.1001-5965.2013.0247
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The ocean wave has a significant influence on the ditching probability. Comprehensively considering the standard deviation of the flying height of the sea-skimming aircraft, standard deviation of the ocean wave, the numerical forecasting of the ditching probability was developed, by using WW3 (WAVEW...
Integral sliding mode nonlinear controller of electrical-hydraulic flight simulator based on neural network
Han Songshan, Jiao Zongxia, Wang Chengwen, Shi Yan
2014, 40(3): 321-326. doi: 10.13700/j.bh.1001-5965.2013.0688
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For the feature that high-accuracy electrical-hydraulic flight simulator (EHFS) is highly nonlinear and contains parametric uncertainties and uncertain nonlinearities, an integral sliding mode nonlinear robust controller based on radial basis function (RBF) neural network was proposed. The adaptive ...
Aeroelastic analysis method for wind turbine blade based on large deformation beam model
Zhang Xintan, Yang Chao, Wu Zhigang
2014, 40(3): 327-332. doi: 10.13700/j.bh.1001-5965.2013.0596
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Large amplitude aeroelastic response problem of wind turbine blade was investigated. Nonlinear Euler beam model, dynamic inflow and dynamic stall model were adopted in aeroelastic modeling. Newton-Raphson iteration was used to solve the nonlinear aeroelastic equations. Newton-downhill method and hom...
Analysis and optimization of envelope material of high-altitude airships
Yang Yongqiang, Ma Yunpeng, Wu Zhe
2014, 40(3): 333-337. doi: 10.13700/j.bh.1001-5965.2013.0390
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The envelope material of high-altitude airship was analyzed and optimized. Coupling relationship between the thermal properties of the functional coating layer and mechanical properties of the load-carrying layer was researched. Analysis and optimization of the envelope material based on a special c...
Novel non-uniform multi-tone system based on Ramanujan sums
Zhou Lina, Wang Zulin, Shang Jiadong, Yang Lan
2014, 40(3): 338-343. doi: 10.13700/j.bh.1001-5965.2013.0446
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Abstract:
In the high speed mobile communication systems, the channel is usually a random or jitter of uniform frequency channel because of the fluctuations in speed of moving vehicles and multi-path effect. This fact leads to a study of non-uniform spectrum system. A novel non-uniform multi-tone system based...
Fast design method of moon-to-earth transfer trajectory
Zheng Aiwu, Zhou Jianping, Liu Yong
2014, 40(3): 344-349. doi: 10.13700/j.bh.1001-5965.2013.0241
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Design of moon-to-earth transfer trajectory is generally divided into two phases, preliminary orbit design and precise orbit design. Among them, the accuracy of preliminary design is the key to the convergence of precise design. A fast design method of moon-to-earth transfer trajectory based on Lamb...
Decoding for LDPC codes with enhanced residual belief-propagation
Zhao Ming, Zhang Xiaolin
2014, 40(3): 350-354. doi: 10.13700/j.bh.1001-5965.2013.0254
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The performance improvements of residual belief-propagation (RBP) and node-wise RBP (NWRBP) decoding algorithms for low-density parity-check (LDPC) codes are very limited while at cost of high computational complexity. The enhanced RBP (ERBP) decoding algorithm was proposed, which updates only one m...
Fault tolerant control based on control allocation for morphing aircraft model
Jiang Weilai, Dong Chaoyang, Wang Tong, Wang Qing
2014, 40(3): 355-359. doi: 10.13700/j.bh.1001-5965.2013.0255
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Abstract:
To cope with the fault tolerant control problem of innovative control effectors (ICE) morphing aircraft with actuator fault, employing control allocation method and theory of integer programming, a fault tolerant control scheme based on control allocation was proposed. Firstly, virtual control law w...
Simulation of wind field over complex terrain based on elevation data
Tang Chu, Hong Guanxin
2014, 40(3): 360-364. doi: 10.13700/j.bh.1001-5965.2013.0257
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Abstract:
A numerical simulation method for the wind field over complex terrain was developed. The complex terrain was represented by a surface, which was established by the surface spline method based on the contour line of the map. Then it was divided into panels containing vortex ring singularities. The si...
Novel camera observing reliability model
Sun Qian, Xu Dong
2014, 40(3): 365-369. doi: 10.13700/j.bh.1001-5965.2013.0211
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Abstract:
For camera observing ability was constrained by its view angle and scene structure, a novel camera observing reliability model was studied based on people's eye sensing ability model. According to Johnson's rule, observing distance, view angle and target size were considered synthetically in this mo...
Simulation analysis on air-to-air missile allowable launch envelope about cooperative air combat of multi-fighter formation
Diao Xinghua, Fang Yangwang, Wu Youli, Fu Xiaofei
2014, 40(3): 370-376. doi: 10.13700/j.bh.1001-5965.2013.0237
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Abstract:
A method for calculating allowable launch envelope of air-to-air missile in multi-aircraft cooperative air warfare was researched. The mechanism of launch envelope of air-to-air missile was analyzed of single-aircraft in the actual case. Considering the mode of cooperative launch/guidance of air-to-...
Hover-stage lunar lander autonomous relatively navigation
Su Qinghua, Zhao Yan, Yang Kui, Zhang Shaochen
2014, 40(3): 377-382. doi: 10.13700/j.bh.1001-5965.2013.0244
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Abstract:
The lunar lander landing phase navigation information analysis is a key to achieve the safety soft landing on lunar surface. According to requirements for the hover-stage navigation, the lunar lander carrying equipment and its access to the characteristics of the lunar surface, laser rangefinder and...
Automatic calibration of output signals from resolvers
Zhang Jian, Wu Zhong
2014, 40(3): 383-388. doi: 10.13700/j.bh.1001-5965.2013.0246
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Abstract:
The outputs of resolvers are amplitude modulated signals, one with the sine and the other with the cosine of angular position. In order to obtain the rotor angular position and velocity information, detection and demodulation are required. However, detection results often contain dc offsets, amplitu...
Comparison analysis between two continuum breakdown parameters applied in coupled NS-DSMC method
Tang Zhenyu, Cai Guobiao
2014, 40(3): 389-393. doi: 10.13700/j.bh.1001-5965.2013.0252
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Navier Stokes-direct simulation Monte Carlo (NS-DSMC) coupled method is a principal method for the computation of continuum-rarefied transitional gas flows. How to locate the interface between continuum and rarefied domains is one of the key aspects in using this method, which is generally achieved ...
Embedded software testing technology based on all-digital simulation
Liu Hui, Jin Maozhong
2014, 40(3): 394-400. doi: 10.13700/j.bh.1001-5965.2013.0260
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Abstract:
For the test of real-time embedded system, the integrated all-digital simulation technology was proposed, which can resolve two functional problems in current software testing environment: ①Taking the simulation clock as the time reference, the synchronization due to setting break points was resolve...
Design of nonlinear optimal controller for multi-missile formation
Zhang Lei, Fang Yangwang, Diao Xinghua, Hu Jie
2014, 40(3): 401-406. doi: 10.13700/j.bh.1001-5965.2013.0268
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Abstract:
To solve the formation control problem of multi-missile formation, the optimal control theory of affine nonlinear system was adopted to design the formation controller of missiles based on leader-follower approach. Firstly, precise linearization based on differential geometry theory was used to line...
Fault detection and time domain of flight networked control system
Ma Aojia, Dong Chaoyang, Wang Qing
2014, 40(3): 407-412. doi: 10.13700/j.bh.1001-5965.2013.0279
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Abstract:
The problem of fault detection was studied for flight networked control system with Markov delay and packet dropout. The networked control system with those problems was modeled as discrete Markov jump system. Based on this model, the residual generator was constructed as the observer and the proble...
Spares optimization under the influence of false alarm
Bian Jiehui, Guo Linhan, Kang Rui, Yang Yi
2014, 40(3): 413-416. doi: 10.13700/j.bh.1001-5965.2013.0238
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When false alarm exists, spares would be misdiagnosed as failed ones and requirements for new spares would be sent to the repair site, the demand rate for spares will be overestimated. So it's necessary to introduce false alarm rate to make it more accurate. The formula was proved that when false al...
Influence of limiters on numerical simulation of heating distributions for hypersonic bodies
Yang Jianlong, Liu Meng
2014, 40(3): 417-421. doi: 10.13700/j.bh.1001-5965.2013.0253
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The Roe's flux difference splitting (FDS) scheme was combined with min mod, van Leer and Osher-C limiters to simulate hypersonic flow fields around hypersonic bodies. The different effects of the three limiters on the simulation results of hypersonic bodies' aerodynamics and aerothermodynamics were ...
Preparations of fluorine-containing solid hydrophobic agent and properties of hydrophobic film
Feng Li, Li Weiping, Liu Huicong, Zhu Liqun
2014, 40(3): 422-426. doi: 10.13700/j.bh.1001-5965.2013.0245
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A solid hydrophobic agent with fluorine was mainly prepared by organosiloxane and hydroxyl fluorosilicone oil. After dissolved in ethanol in different concentration, the as-prepared solid hydrophobic agents were coated on the surface of A3 steels to obtain transparent hydrophobic film with thickness...

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