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2003 Vol. 29, No. 12

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Design of longitudinal automatic landing control law of transport aircraft with μ synthesis
Wang Hui, Li Shaoyan, Chen Zongji
2003, 29(12): 1059-1063.
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The process and characteristic of landing of transport aircraft was analyzed. The synthesis method based on structured singular value was adopted to design the automatic landing control system to accurately follow the slide path of landing. The robust performance of the landing system was analyzed. ...
Experimental investigations of improving AO-resistant characteristics of glass fiber/epoxy resin composite filled with superfine cenospheres
Wang Mingzhu, Zhao Xiaohu, Shen Zhigang, Ma Shulin
2003, 29(12): 1064-1067.
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A new technology was adopted to improve AO-resistant characteristics of spacecraft composites. The superfine cenospheres, which were stable in AO environment, were filled in the epoxy matrix in order to produce the AO-resistant glass fiber/epoxy resin composite. Cenospheres/glass fiber/epoxy resin c...
Development of fly-by-light control system
Li Kun, Wang Shaoping
2003, 29(12): 1068-1072.
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An overview was given to the development of fly-by-light (FBL) control system. The achievements in every period of the international research work about FBL were illustrated. The key problem that restrict the development of FBL was the FBL hardware. The way how to select optical components which wer...
Concurrent design of environmental control systems for aircraft
Wang Xiaowen, Wang Jun
2003, 29(12): 1073-1076.
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Based on the development of the environmental control systems for aircraft, the arrangement for the structure of systems design was analyzed. To recur information technology, designing technology, imitating technology, an concurrent engineering frame was proposed based on management-structure design...
Development of flight control with aircraft
Zhang Rulin
2003, 29(12): 1077-1083.
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The flight control technology development and effects on aircraft were discussed. It was briefly reviewed that history from Wright brothers to 1960s'. The emergence of active control technology and fly-by-wire control system had tremendous influences on aircraft design. The main technique connotatio...
Second-order sliding mode control of cross beam experiment system
Gu Wenjin, Yu Hongyun, Yang Zhiyong
2003, 29(12): 1084-1086.
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To reduce the chattering produced by traditional sliding mode controller on the cross beam experimental system, a second-order sliding mode controller based on the idea of high-order sliding mode control for output tracking the cross beam system which was a higher order and MIMO nonlinear system was...
Aeroelastic analysis of flexible large aspect ratio wing
Xie Changchuan, Wu Zhigang, Yang Chao
2003, 29(12): 1087-1090.
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Aeroelastic phenomena are significant for high-altitude long-endurance aircrafts for the large aspect ratio wing. The effect of structural geometric-nonlinear on wing dynamic characteristics and the changes of unsteady aerodynamics due to the large static deformation of wing were studied. The wing f...
Competence-based workflow task organizing
Wan Liangjun, Huai Jinpeng
2003, 29(12): 1091-1096.
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To solve the problem on coupling of activities and cooperators in classical workflow model, and improve the task distribution flexibility and adaptability, the competence concept for workflow activity and cooperator was presented. The competence ontology model and competence-based task organizing pr...
Calculation of reliability index based on mission completion probability for UAV system
Zhang Wenjin, Kang Rui, Zeng Shengkui
2003, 29(12): 1097-1100.
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In order to solve the problem of the reliability index determination of the UAV (unmanned aerial vehicle) system, the function of the modern UAV system was described. And a practical calculating method for the mission completion probability of UAV system was presented, in which the modes and the fie...
Design and analysis of novel airborne integrated electro-hydrostatic actuator
Li Jun, Fu Yongling, Wang Zhanlin, Gao Bo
2003, 29(12): 1101-1104.
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To meet the development of aircraft actuating systems in the future, a novel airborne electro-hydrostatic actuator (EHA) which is integrated for power-by-wire (PBW) is designed. The paper describes the principle of work and features of EHA, models its components and the system, and simulates it with...
Reusable space vehicle flight control
Zhang Ziyan
2003, 29(12): 1105-1109.
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It was analyzed about the problems of space vehicle flight control, the development of space vehicles, the design aim and main characteristic of flight control systems of varied space vehicles, the main design requirement of flight control system of reusable space vehicles, the key technology which ...
Flight test of modern fighter
Zhou Ziquan
2003, 29(12): 1110-1114.
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Based on the engineering practice of flight test recently for the new type of fighter, referred to the foreign experience, the flight test characteristics of modern fighters was described,including sorties and period,aboard acquisition system,ground data acquisition system,ground support facilities,...
Shape adaptive embedded wavelet image code
Bao Yongsheng, Wang Qi, Guo Lei
2003, 29(12): 1115-1118.
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It can code arbitrarily shaped object not only preserving visual texture information but also introducing no redundancy. Transforming arbitrarily shaped object will bring a little change because of the variety of sequence's length and subsample location, which was resolved by the method that arbitra...
LQ optimal simulation for aircraft anti-skid brake control system
Huang You
2003, 29(12): 1119-1122.
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Linear-Quadratic optimal control technique, Matlab optimal toolbox and Simulink were applied for aircraft anti-skid brake control system, according to aircraft body,tyre,ground and brake device. The dynamic model was given by modern state-space method, optimal state-feedback gain was calculated and ...
Study on effectiveness evaluation of integrated control system with laser guided bomb
Xie Zhenpeng, Shen Gongzhang
2003, 29(12): 1123-1126.
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The effectiveness evaluation of LGB integrated flight/fire/propulsion control (IFFPC) system was composed of performance evaluation and combat effectiveness evaluation, according to the general rules of weapon systems effectiveness evaluation and the characteristic of the IFFPC system. For evaluatin...
Design of fuzzy flight control system based on LMI
Wang Yueping
2003, 29(12): 1127-1129.
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A fuzzy flight control system model was established. Through using linear matrix inequality, a design method was gained which guarantees the fuzzy system is global asymptotic stability and the poles were assigned to anticipant areas. The numerical simulations of a fuzzy flight control system designe...
Helicopter pitch fly-by-wire control law design based on fuzzy control
Huang Ying
2003, 29(12): 1130-1132.
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Because of the nonlinear properties of the helicopters, such as multivariable, strong couple, the conventional control methods can hardly provide the perfect manipulability for advanced helicopter. Fuzzy control is an effect control method, which deals with the control problems through the way simil...
Dynamic reverse and fuzzy integrated control of unmanned helicopters
Shen Yi, Yu Xiaomin, Li Aijun
2003, 29(12): 1133-1135.
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To nonlinear system, the approximate reverse of the system was extracted using its approximate linearized model and the fuzzy control was employed to restrain the effect the error produces on the system so as to guarantee the terminal performance of the system, thus constituting a plan of dynamic re...
Recursive damped least square and its application in INS/DS integrated system
Zhao Long, Liu Zhun, Chen Zhe
2003, 29(12): 1136-1138.
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The filtering performance is unsatisfactory while INS/DS (Double-star) integrated navigation system is implemented using Kalman filtering technology, because the model error of double-star system is unknown and the stability is not good, either. As an alternative, the least square(LS)scheme is widel...

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