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2015 Vol. 41, No. 5

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Volume 41 Issue52015
2015 Year 41 Volume 5 Issue E-journal
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Oxidation behavior of 5A06 and 2A12 aluminum alloys in sulfuric-adipic acid and electrochemical property of anodic oxide film
LIU Jianhua, GAO Qingna, LI Yingdong, LI Songmei, YU Mei
2015, 41(5): 757-763. doi: 10.13700/j.bh.1001-5965.2014.0330
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Anodic films of 5A06 and 2A12 aluminum alloys were obtained in sulfuric-adipic acid.The influence of alloy phase on anodic oxidation behavior, and the structure and corrosion resistance of the oxide film were analyzed. Electrochemical results were completed by the polarization curve and electrochemi...
Integrated surveying method for FOG inclinometer aided by cable length
ZHANG Chunxi, LIN Tie, WANG Lu, LI Xianmu, XU Meibao
2015, 41(5): 764-769. doi: 10.13700/j.bh.1001-5965.2014.0382
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In order to realize long-term surveying with high accuracy of fiber optic gyroscope (FOG) inclinometer, according to the logging operation, an integrated surveying method based on Kalman filter technology was proposed, which was aided by cable length information. The error model of inertial surveyin...
Angular rate sensing based on mode splitting in an optical microresonator
YANG Zhaohua, HAN Xiaowei, YANG Xu
2015, 41(5): 770-775. doi: 10.13700/j.bh.1001-5965.2014.0329
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Backscattering has been treated as one of the major error sources in resonant optic gyroscopes (ROG) in a traditional way, which has to be restrained. A microresonator with ultra-high quality factor can greatly enhance the backscattering light. As a result, it cannot be deemed as a disturbance noise...
Split-type implicit scheme using flux splitting and dual-time step for Euler equations
DONG Haitao, CHEN Zhe, LIU Fujun
2015, 41(5): 776-785. doi: 10.13700/j.bh.1001-5965.2014.0326
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There are some shortcomings of the traditional implicit schemes such as complex forms and large amount of computations. Using the idea of operator splitting combining with implicit discrete schemes—flux vector splitting and dual-time step scheme—a simpler split-type implicit difference scheme for Eu...
Influence of engine inlet and exhaust on flying wing UAV and its mechanism analysis
YU Xinhua, TAO Yujin, ZHANG Lin, GAO Limin
2015, 41(5): 786-792. doi: 10.13700/j.bh.1001-5965.2014.0327
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The inlet and exhaust can remarkably affect the pressure distribution and flow fields properties near the forebody and afterbody of the aircraft, therefore causing certain changes to the lift, drag and momentum characteristics. In order to know how inlet and exhaust affect aerodynamic characteristic...
Electromagnetic interference caused by electric load of more electric aircraft
XIAO Chunyan, GAO Shuai
2015, 41(5): 793-801. doi: 10.13700/j.bh.1001-5965.2014.0339
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As an increasing number of power electronic converters are used in the electrical system of more electric aircraft (MEA), electro-magnetic interference (EMI) problems are becoming more and more severe both within the electrical systems and between different systems. Based on the electrical load char...
Discrete tolerance optimization for aircraft multi-joint assembly based on dynamic programming
TAN Changbai, KUANG Heng
2015, 41(5): 802-810. doi: 10.13700/j.bh.1001-5965.2014.0372
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According to the nature of multi-stage decision of tolerance design for aircraft multi-joint assembly, a novel method of discrete tolerance optimization was proposed based on dynamic programming. First, coordination error models of typical three-joint assembly and four-joint assembly were presented....
Fuzzy-clustering-based all-factor automatous validation approach of modal parameters of structures
ZHOU Sida, ZHOU Xiaochen, LIU Li, YANG Wu
2015, 41(5): 811-816. doi: 10.13700/j.bh.1001-5965.2014.0344
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To solve the problem of modal parameter validation, an automatous validation approach of modal parameters was realize by using the fuzzy clustering analysis, which reduced the dependence of users' subjective experience on modal parameter validation, and improve the efficiency of modal parameter vali...
Automatic code generation method based on Esterel
HE Yanxiang, YU Tao, LIU Jianbo, XU Chao
2015, 41(5): 817-824. doi: 10.13700/j.bh.1001-5965.2015.0108
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Embedded systems development is much different from the traditional software development. Embedded system has the characteristics of small kernel, strong specificity, high reliability, high timeliness and complex target platforms, such that it requires higher designing criteria. Considering these pr...
United-proportional-navigation law for interception of high-speed maneuvering targets
LI Yuan, ZHAO Jiguang, YAN Liang, BAI Guoyu
2015, 41(5): 825-834. doi: 10.13700/j.bh.1001-5965.2014.0335
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Aimed to high-speed maneuvering targets, three dimensional united proportional navigation (UPN) law was proposed. The guidance law combines the advantages of head-on and head-pursuit engagement through time-varying navigation ratio. The three-dimensional UPN law consisted of two planar laws can exec...
Method for modeling and simulation of aircraft taxiing with unilateral and non-holonomic constraints
XU Ziyao, WANG Qi
2015, 41(5): 835-840. doi: 10.13700/j.bh.1001-5965.2014.0342
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The motion of the aircraft taxiing along the ground was related to wind load and asymmetric braking torque. The method for modeling and simulation of the aircraft was presented on the basis of the dynamics of the non-smooth multibody system with non-holonomic constraints in order to analyze the dyna...
Vibration model for multi-span beam with arbitrary complex boundary conditions
LIU Xiangyao, NIE Hong, WEI Xiaohui
2015, 41(5): 841-846. doi: 10.13700/j.bh.1001-5965.2014.0315
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The transverse free vibration equations for Timoshenko beam were derived. Based on these equations, the vibration model for a multi-span beam with arbitrary complex boundary conditions was given by the transfer matrix method. Without considering the shear deformation and moment of inertia of the neu...
Uncertainty evaluation for the dynamic calibration of pressure transducer
LI Qiang, WANG Zhongyu, WANG Zhuoran
2015, 41(5): 847-856. doi: 10.13700/j.bh.1001-5965.2014.0356
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The uncertainty of dynamic calibration for pressure transducer is a key indicator of its dynamic measurement precision. A novel grey method (GM) was proposed to evaluate the dynamic calibration uncertainty of pressure transducer. Firstly, a sine pressure generator was used to produce required sine p...
Guidance law with angular constraints for head-pursuit or head-on engagement
YAN Liang, ZHAO Jiguang, LI Yuan
2015, 41(5): 857-863. doi: 10.13700/j.bh.1001-5965.2014.0369
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For head-on or head-pursuit engagement, angle control proportional navigation (ACPN) and angle control retro-proportional navigation (ACRPN) closed-form trajectory shaping guidance law with impact angular constraints were proposed, which were based on proportional navigation (PN) or retro-proportion...
Predictor-corrector reentry guidance satisfying no-fly zone constraints
ZHAO Jiang, ZHOU Rui, ZHANG Chao
2015, 41(5): 864-870. doi: 10.13700/j.bh.1001-5965.2014.0488
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To enforce the lateral maneuverability of the reentry gliding flight, a predictor-corrector guidance method satisfying the no-fly zone constraints was proposed for the lifting hypersonic reentry vehicles. First, the longitudinal guidance was developed by the prediction of the landing error and the c...
Problems of network simplification by edge bundling
YAO Zhonghua, WU Lingda, SONG Hanchen
2015, 41(5): 871-878. doi: 10.13700/j.bh.1001-5965.2014.0501
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Node occlusion and edge congestion problems, which are caused by the increment of network scale and complexity, had become a hot spot in network visualization research. To solve the visual clutter problem in network, edges close to each other in network were bundled by curving them. The bundling sta...
Analysis of impact of use of composite materials on direct operating costs of airliners
YIN Hailian, YU Xiongqing
2015, 41(5): 879-884. doi: 10.13700/j.bh.1001-5965.2014.0320
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The impact of the use of composite materials on the direct operating cost (DOC) of airliners needs to be evaluated at the preliminary stage of aircraft design. An analysis of the influence of the use of composite materials on aircraft cost and weight was carried out. A revised model for airliner wei...
Depth control of robotic fish propelled by oscillating paired pectoral fins
MA Hongwei, BI Shusheng, CAI Yueri, NIU Chuanmeng
2015, 41(5): 885-890. doi: 10.13700/j.bh.1001-5965.2014.0331
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The double-closed loop depth control method based on expert PID and fuzzy control was proposed, which was used to realize the depth control of robotic fish propelled by oscillating pectoral fins. The pitching moment acting on the robotic fish was produced by the oscillating angle control of the robo...
Changes of contamination deposition on spacecraft surface and evaluation of control factors
TANG Ping, ZHU Guangwu, QIN Guotai, LI Yongping, HE Yumei
2015, 41(5): 891-896. doi: 10.13700/j.bh.1001-5965.2014.0376
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After spacecraft launched into space environment, molecule contamination and tiny particle contamination deposit on spacecraft surface and constitute the surface contamination layer. This contamination phenomenon has different levels of negative impacts on some technical systems. The on-orbit detect...
Robust design optimization of a two-dimensional airfoil with deformable trailing edge
ZHENG Yuning, QIU Zhiping, HUANG Ren, YUAN Kaihua
2015, 41(5): 897-903. doi: 10.13700/j.bh.1001-5965.2014.0387
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In order to improve the aerodynamic stability of a two-dimensional airfoil with deformable trailing edge during the change of external conditions, a robust optimization method considering the uncertainty was proposed. Based on class-shape function transformation (CST) method, a parametric model was ...
Predicting web search behavior based on gaze data
LU Wanxuan, JIA Yunde
2015, 41(5): 904-910. doi: 10.13700/j.bh.1001-5965.2014.0464
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Predicting user's web search behavior is important for search engine improvements and user experience enhancements. Most existing studies are based on user's interaction data, including queries, clicks, cursor movements, etc. The prediction of web search behavior using gaze data was presented. To ca...
Cooperative jamming-detecting-attacking task allocation in air combat
RAN Huaming, ZHOU Rui, DONG Zhuoning, CHE Jun
2015, 41(5): 911-918. doi: 10.13700/j.bh.1001-5965.2014.0325
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To solve task allocation problem of cooperative jamming in air combat, according to jamming power, jamming frequency bands and jamming style of our aircraft together with radar working power, working frequency bands, anti-jamming style of enemy aircraft, advantage of jamming power, jamming frequency...
Rapid anodizing technology replacing chromic acid for LY12CZ aluminum alloy
JI Zhenjiang, ZHU Liqun, LIU Huicong, LI Weiping
2015, 41(5): 919-924. doi: 10.13700/j.bh.1001-5965.2014.0352
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Aluminum alloy anodizing coatings were prepared for LY12CZ in 45 g/L sulfuric acid solution through adding organic acid additive and buffering agent for fast film-forming, with the gradient voltage of 15-25 V, to replace the traditional chromic acid anodizing and boric-sulfuric acid anodizing. The f...
Resistance evaluation for flying boats sliding at medium and high speed in calm water
SUN Jianjun, MA Dongli
2015, 41(5): 925-929. doi: 10.13700/j.bh.1001-5965.2014.0365
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Considering the unique multimedia condition during take-off process of a flying boat and referring to the method of studying the resistance performance of a planning boat in the sliding process, a formula, to evaluate the resistance of a flying boat at medium and high speed in calm water, was propos...
Multi-user identification based on double views coupling in cooperative interaction scenarios
YANG Yuhui, WANG Weijie, WAN Huagen
2015, 41(5): 930-940. doi: 10.13700/j.bh.1001-5965.2014.0454
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An approach of multi-user identification based on double views coupling was proposed for the problem of identification error in cooperative multiplayer caused by occlusion and contact, in cooperative interaction scenarios. Double views motion tracking was established by the method of skeletons motio...
Optimization of drag-reduction by suction using multi-island genetic algorithm
ZHAO Dejian, WANG Yankui, ZHOU Ping, LI Qian
2015, 41(5): 941-946. doi: 10.13700/j.bh.1001-5965.2014.0345
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To overcome the drawback of large suction mass requirement, the suction control for drag reduction was optimized. Computational fluid dynamics (CFD) in conjunction with multi-island genetic algorithm was employed as the tool to achieve the optimization. E387 airfoil was employed as the physical mode...
Study on the ellipsoidal reflector interception methods for quasi-optical systems
LIU Dawei, WU Zhengxun, WU Zheng, LIU Kai
2015, 41(5): 947-952. doi: 10.13700/j.bh.1001-5965.2014.0322
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For quasi-optical system, in order to improve the application performance of quasi-optical system on weather satellites, a new method of intercepting ellipsoidal reflectors that can effectively reduce extra energy loss in transmission and decrease the sizes of reflectors was proposed. Ellipsoidal re...
Retraction system performance analysis of landing gear with the influence of multiple factors
YIN Yin, NIE Hong, WEI Xiaohui, NI Huajin
2015, 41(5): 953-960. doi: 10.13700/j.bh.1001-5965.2014.0380
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The landing gear retraction system is a mixed complex system consisted of mechanism, electricity and hydraulics. The retraction performance is affected by various factors. In most of the current studies, the subsystems are not well combined. Thus, a set of method combining theoretical analysis, mult...

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