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| 1 | A Practical Approach to Modifying Pairwise Comparison Matrices and Two Criteria of Modificatory Effectiveness | MA Weiye Bureau of Science & Technology Policy, Academia Sinica, Beijing 100080, PRCXU Jiangyue, WEI Yixiang Beijing University of Aeronautics & Astronautics, Beijing 10080, PRC | 1993 | Systems Science and Systems Engineering1993，3，4： | 35 |
| 2 | New development thoughts on the bio-inspired intelligence based control for unmanned combat aerial vehicle显示文摘Bio-inspired intelligence is in the spotlight in the field of international artificial intelligence,and unmanned combat aerial vehicle(UCAV),owing to its potential to perform dangerous,repetitive tasks in remote and hazardous,is very promising for the technological leadership of the nation and essential for improving the security of society.On the basis of introduction of bioinspired intelligence and UCAV,a series of new development thoughts on UCAV control are proposed,including artificial brain based high-level autonomous control for UCAV,swarm intelligence based cooperative control for multiple UCAVs,hy-brid swarm intelligence and Bayesian network based situation assessment under complicated combating environments, bio-inspired hardware based high-level autonomous control for UCAV,and meta-heuristic intelligence based heterogeneous cooperative control for multiple UCAVs and unmanned combat ground vehicles(UCGVs).The exact realization of the proposed new development thoughts can enhance the effectiveness of combat,while provide a series of novel breakthroughs for the intelligence,integration and advancement of future UCAV systems. | DUAN HaiBin 1 ,SHAO Shan 2 ,SU BingWei 3 &ZHANG Lei 41 State Key Laboratory of Science and Technology on Holistic Flight Control,School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics,Beijing 100191,China 2 Flight Control Department,Shenyang Aircraft Design and Research Institute,Shenyang 110035,China 3 Beijing Institute of Near Space Vehicle’s System Engineering,Beijing 100076,China 4Integration and Project Section,Air Force Equipment Academy,Beijing 100085,China | 2010 | Science China(Technological Sciences)2010，53，8： | 32 |
| 3 | AerMet100——极好综合性能的超高强度钢显示文摘介绍了综合性能优良并有广泛应用前景的新型超高强度钢Aer-Met100.与其它超高强度钢相比,它具有更突出的综合性能:高强度、高硬度、高断裂韧性和延展性。 | Wan Xiaoru (Beijing University of Aeronautics and Astronautics,Dept. of Materials Science Engineering) | 1996 | 北京航空航天大学学报1996，22，6： | 27 |
| 4 | Aerodynamic/Stealthy/Structural Multidisciplinary Design Optimization of Unmanned Combat Air Vehicle显示文摘An optimization strategy is proposed to deal with the aerodynamic/stealthy/structural multidisciplinary design optimization(MDO) issue of unmanned combat air vehicle(UCAV).In applying the strategy,the MDO process is divided into two levels,i.e.system level optimization and subsystem level optimization.The system level optimization is to achieve optimized system objective(or multi-objective) through the adjustment of global external configuration design variables.The subsystem level optimization consists of the aerodynamic/stealthy integrated design and the structural optimization.The aerodynamic/stealthy integrated design aims at achieving the minimum aerodynamic drag coefficient under the constraint of stealthy requirement through the adjustment of local external configuration design variables.The structural optimization is to minimize the structural weight by adjusting the dimensions of structural components.A flowchart to implement this strategy is presented.The MDO for a flying-wing configuration of UCAV is employed to illustrate the detailed process of the optimization.The results indicate that the overall process of the surrogate-based two-level optimization strategy can be implemented automatically,and quite reasonable results are obtained. | Hu Tianyuan,Yu Xiongqing Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China | 2009 | Chinese Journal of Aeronautics2009，22，4： | 21 |
| 5 | Sliding Mode Controller Design for Position and Speed Control of Flight Simulator Servo System with Large Friction显示文摘Flight simulator is an important device and a typical high-performance position and speed servo system used in the hardware-in-the-loop simulation of flight control system. Friction is the main nonlinear resistance in the flight simulator servo system, especially in a low-speed state. Based on the description of dynamic and static models of a nonlinear Stribeck friction model, this paper puts forward sliding mode controller to overcome the friction, whose stability is proved. Simulation example indicates that the controller can guarantee a high robust performance and have a high precision of position tracking and speed tracking for a flight simulator servo system. | Liu Jinkun & Er LianjieAutomatic Control Department, Beijing University of Aeronautics and Astronautics, Beijing 100083, P. R. China | 2003 | Journal of Systems Engineering and Electronics2003，14，3： | 21 |
| 6 | EXPERIMENTAL STUDY OF FLOWFIELD STRUCTURE AROUND AN OGIVE-CYLINDER显示文摘The flowfield structure and their aerodynamic characteristics over an ogive cylinder were studied by means of flow visualization and surface pressure measurement in a water tunnel and a wind tunnel. The existence of multi asymmetric vortices over long slender bodies was experimentally confirmed at large angles of attack and in the subcritical Reynolds number range. The spatial 3 D characteristics of the multi vortices system were analyzed and a physical model was developed. The topological structure of different patterns in cross flow plane was studied and the mechanism governing the formation of asymmetric vortices and multi vortices was discussed from the viewpoint of stability of the topological structure. It was concluded that the maximum in the sectional side force distribution curve are not caused by the shedding of higher position vortex, but by the cross over to the symmetric plane of the lower position vortex. | Ph.D.Candidate:Wang Gang Fluid Mechanics Institute, Beijing University of Aeronautics and Astronautics, Beijing 100083, China,Supervisor: Deng Xue ying (Beijing University of Aeronautics and Astronautics) Members of Dissertation Defense Committee: Tong Bing gang (Graduate School of the Chinese Academy of Sciences),Chairman Gu Zhi fu (Peking University) Yang Qi de (China Aerodynamics Research and Development Center) Lv Zhi yong (Beijing University of Aeronautics and Astronautics) Liu Pei qing (Beijing University of Aeronautics and Astronautics) | 2003 | Journal of Hydrodynamics2003，15，5： | 18 |
| 7 | General Analytical Solution of Transverse Vibration For Orthotropic Rectangular Thin Plates显示文摘A general solution of differential equation for transverse displacement function of orthotropic rectangular thin plates in free vibration is established in this paper. It can be used to solve the vibration problem of plate with arbitrary boundaries. As an example, the frequencies of a composite laminated plate with four free edges have been solved. The result as compared with the experiment is satisfactory. | HUANG Yan,ZHANG Xiao-jinCollege of Astronautical Engineering, National University of Defense Technology, Changsha, 410073 , China | 2002 | 哈尔滨工程大学学报(英文版)2002，，2： | 17 |
| 8 | 全场观测技术概念、进程与展望显示文摘简要综述理想的流体力学观测手段的概念,近代全场观测技术(包括激光空间流动显示,定量化流动显示,全场测量技术等)及其应用发展的踪迹和趋向.同时介绍作者在此领域的若干研究工作. | Shen Gongxin (Beijing University of Aeronautics and Astronautics,Dept.of Flight Vehicle Design and Applied Mechanics) | 1997 | 北京航空航天大学学报1997，23，3： | 17 |
| 9 | Unmanned air/ground vehicles heterogeneous cooperative techniques:Current status and prospects显示文摘Multiple unmanned air/ground vehicles heterogeneous cooperation is a novel and challenging filed.Heterogeneous cooperative techniques can widen the application fields of unmanned air or ground vehicles,and enhance the effectiveness of implementing detection,search and rescue tasks.This paper mainly focused on the key issues in multiple unmanned air/ground vehicles heterogeneous cooperation,including heterogeneous flocking,formation control,formation stability,network control,and actual applications.The main problems and future directions in this field were also analyzed in detail.These innovative technologies can significantly enhance the effectiveness of implementing complicated tasks,which definitely provide a series of novel breakthroughs for the intelligence,integration and advancement of future robot systems. | DUAN HaiBin & LIU SenQi National Key Laboratory of Science and Technology on Holistic Flight Control,School of Automation Science and Electrical Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China | 2010 | Science China(Technological Sciences)2010，53，5： | 16 |
| 10 | Nonlinear Aeroelastic Response of High-aspect-ratio Flexible Wings显示文摘The aeroelastic analysis of high-altitude,long-endurance(HALE) aircraft that features high-aspect-ratio flexible wings needs take into account structural geometrical nonlinearities and dynamic stall.For a generic nonlinear aeroelastic system,besides the stability boundary,the characteristics of the limit-cycle oscillation(LCO) should also be accurately predicted.In order to conduct nonlinear aeroelastic analysis of high-aspect-ratio flexible wings,a first-order,state-space model is developed by combining a geometrically exact,nonlinear anisotropic beam model with nonlinear ONERA(Edlin) dynamic stall model.The present inves-tigations focus on the initiation and sustaining mechanism of the LCO and the effects of flight speed and drag on aeroelastic behaviors.Numerical results indicate that structural geometrical nonlinearities could lead to the LCO without stall occurring.As flight speed increases,dynamic stall becomes dominant and the LCO increasingly complicated.Drag could be negligible for LCO type,but should be considered to exactly predict the onset speed of flutter or LCO of high-aspect-ratio flexible wings. | Zhang Jian,Xiang Jinwu School of Aeronautic Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China | 2009 | Chinese Journal of Aeronautics2009，22，4： | 14 |
| 11 | A New Scheme and Microstructural Model for 3D Full 5-directional Braided Composites显示文摘Three-dimensional(3D) braided composites are a kind of advanced ones and are used in the aeronautical and astronautical fields more widely.The advantages,usages,shortages and disadvantages of 3D braided composites are analyzed,and the possible approach of improving the properties of the materials is presented,that is,a new type of 3D full 5-directional braided composites is developed.The methods of making this type of preform are proposed.It is pointed out that the four-step braiding which is the most possible to realize industrialized production almost has no effect on the composites'properties.By analyzing the simulation model,the advantages of the material compared with the 3D 4-directional and 5-directional materials are presented.Finally,a microstructural model is analyzed to lay the foundation for the future theoretical analysis of these composites. | Zhang Fan,Liu Zhenguo,Wu Zhe,Tao Guoquan School of Aeronautic Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China | 2010 | Chinese Journal of Aeronautics2010，23，1： | 14 |
| 12 | A STUDY ON ALUMINIDE COATINGS ON TiAl ALLOYS BY PACKCEMENTATION METHOD显示文摘The halide-activated pack cementation method is utilized to deposit aluminide coat- ings on TiAl alloys. Emphasis is placed on the effect of alloying elements on the aluminizing behavior of TiAl alloy. The addition of a small amount of Nb or Cr in the TiAl improves significantly the aluminizing kinetics of TiAl alloys by increasing the solid-state division of Al through the formation of stable TiAl3 layer. The TiAl3 layer formed on the TiAl alloyed with Nb or Cr has better toughness than the TiAl3 formed on the non-alloyed TiAl. The reason for better toughness of the coating formed on TiAl is that partial TiAl3 with tetragonal structure was changed to high symmetry cubic L12 structure since Nb or Cr was dissolved into TiAl3. The TiAl3 layer formed on the TiAl alloyed with Nb or Cr has much better oxidation resistance than the TiAl3 layer formed on the non-alloyed TiAl. It is attributed to change in the crystal structure of TiAl3 from the brittle tetragonal DO22 to the ductile cubic L12 by addition of small amount of Nb or Cr. | C.G. Zhou, H.B. Xu and S.K. Gong (Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics,Beijing 100083, China) K. Y. Kim (Department of Materials Science and Engineering, Pohang University of Science and Techn | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，6： | 14 |
| 13 | Effect of the cooling rate on plastic deformability of a Zr-based bulk metallic glass显示文摘The present work found the plastic deformability of Zr65Cu17.5Ni10Al7.5 BMG dependent on the cooling rate during the formation from the molten state alloy. The deformation behavior in the compression test of φ 2 mm Zr65Cu17.5Ni10Al7.5 BMGs as-cast or lathed from different sizes as-cast samples was characterized, and they exhibited different plastic strains. The compressive plastic strain increases with the decreasing diameter of the as-cast specimens, i.e. with increasing the cooling rate. It is suggested that free volume content in the BMGs, which is related to the cooling rate during the rapid solidification, could play an important role in the deformation process of the BMGs. | ZHANG Jing, PANG ShuJie & ZHANG Tao Key Laboratory of Aerospace Materials and Performance (Ministry of Education), Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，3： | 13 |
| 14 | Restudies on Body Surface of Dung Beetle and Application of Its Bionics Flexible Technique显示文摘A scanning electron microscope was used to observe the structures of the setae on the surface of a dung beetle Copris ochus, Motschulsky. There are lots of setae on the body surface, especially on the ventral part surface and lateral to the legs which are different in size, arrangement and shape. These setae have different lengths and many thorns on the whole seta. The top ends of these setae stand up without furcations which direct uprightly towards the surface of the touched soil. By the method of removing these setae, getting the insect weight before and after digging into the dung we affirm farther that the setae on the beetle body surface form the anti-stick and non-adherent gentle interface. The soil machines and components made by imitating the gentle body surface of beetles have favorable non-adherent results. | Jiurong Sun 1, Jianqiao Li 2, Hong Cheng 1, Zhendong Dai 3, Luquan Ren 2 1.College of Life Sciences, Peking University, Beijing, 100871,P.R. China 2.Key Laboratory of Terrain-Machine Bionics Engineering (Ministry of Education,China), Jilin University at Nanling Campus, Changchun, 130022,P.R.China 3.College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016,P.R.China | 2004 | Journal of Bionic Engineering2004，1，1： | 12 |
| 15 | Bearing capacity analysis of reinforced concrete L-shaped cross-section under biaxial eccentric compression显示文摘The ultimate capacity of short L-shaped reinforced concrete(RC) mernbers subjected to biaxial eccentric compression is investigated to provide a new tool for structure engineers.On the basis of nonlinear analysis of RC arbitrary cross-section,a new simplified cross-section numerical integration method is suggested.The cross-section is divided into several triangles,and each one is integrated with Gauss integration method.And L-shaped cross-sections subjected to biaxial eccentric compression are analyzed.The interaction curves of (N-M) and (My-Mz) for L-shaped sections are derived.The analytical results are well consistent with the experimental data and other analytical results. | JIAO Junting , YE Yinghua and DIAO Bo(Department of Civil Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China) | 2003 | Progress in Natural Science:Materials International2003，13，6： | 12 |
| 16 | Liquid propellant analogy technique in dynamic modeling of launch vehicle显示文摘The coupling effects among lateral mode,longitudinal mode and torsional mode of a launch vehicle cannot be taken into account in traditional dynamic analysis using lateral beam model and longitudinal spring-mass model individually.To deal with the problem,propellant analogy methods based on beam model are proposed and coupled mass-matrix of liquid propellant is constructed through additional mass in the present study.Then an integrated model of launch vehicle for free vibration analysis is established,by which research on the interactions between longitudinal and lateral modes,longitudinal and torsional modes of the launch vehicle can be implemented.Numerical examples for tandem tanks validate the present method and its necessity. | PAN ZhongWen 1,2 ,XING YuFeng 1 ,ZHU LiWen 2 ,DONG Kai 2 &SUN Mu 2 1Solid Mechanics Research Center,Beijing University of Aeronautics and Astronautics,Beijing 100191,China 2 Beijing Astronautics Systems Engineering Institute,Beijing 100076,China | 2010 | Science China(Technological Sciences)2010，53，8： | 11 |
| 17 | An adaptive version of ghost-cell immersed boundary method for incompressible flows with complex stationary and moving boundaries显示文摘An adaptive version of immersed boundary method for simulating flows with complex stationary and moving boundaries is presented.The method employs a ghost-cell methodology which allows for a sharp representation of the immersed boundary.To simplify the implementation of the methodology,a volume-of-fluid method is introduced to identify the immersed boundary.In addition,the domain is spatially discretized using a tree-based discretization which is relatively simple to implement a fully flexible adaptive refinement strategy.Finally,the methodology is validated by comparing it with numerical and experimental results on three cases:(1) the flow passing a circular cylinder at Re=40 and Re=100,(2) a periodic oscillation of a circular cylinder in fluid at rest and(3) the self-propelled fish-like swimming at Re=6400. | WANG Liang1 & WU ChuiJie2,3 1 School of Science,PLA University of Science and Technology,Nanjing 211101,China 2 State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China 3 School of Aeronautics and Astronautics,Dalian University of Technology,Dalian 116024,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，5： | 11 |
| 18 | Dynamics analysis and experiment on the fishtailing type of valveless piezoelectric pump with rectangular vibrator显示文摘In recent years, the research and development of piezoelectric pumps have become an increasingly popular topic. Minimization, structure simplification and stronger output become the focus of piezoelectric pumps’ research due to its possible application in MEMS technology. The valveless fishtailing piezoelectric pump, neither a volumetric nor a rotating pump, was invented according to the bionics of fish swimming. With assumption that the head of the fish is fixed while its tail is swinging, fluid would flow toward the end of the tail, achieving the function of a valveless pump. This type of pumps creates a new branch for the piezoelectric pump research, which is proposed for the first time in this paper. The relationship between the flow rates and vibrating frequencies was derived from the interaction between the vibrator and fluid. Numerical simulations with FEM software were conducted to study the first and second vibration modes of the piezoelectric vibrator. The results showed that the maximum amplitude of the vibrator was 0.9 mm at the frequency of 76 Hz for the first vibration mode, while the maximum amplitude of the vibrator was 0.22 mm at the frequency of 781 Hz for the second vibration mode. Experiments were conducted with the Doppler laser vibration measurement system, and the results were compared to those of the FEM simulation. It was shown that in the first vibration mode the piezoelectric vibrator reached its maximum amplitude of about 0.9 mm at the driving frequency of 49 Hz, which gives the flow rate of 2.0 mL/min, in the second vibration mode, the maximum amplitude was about 0.25 mm at the frequency of 460 Hz with the flow rate being 6.4 mL/min. | HUANG Yi1, ZHANG JianHui1, HU XiaoQi1, XIA QiXiao2, HUANG WeiQing1 & ZHAO ChunSheng1 1 Department of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China 2 Department of Mechanical and Electrical Engineering, Beijing Union University, Beijing 100020, China | 2010 | Science China(Technological Sciences)2010，53，12： | 10 |
| 19 | Relation Entropy and Transferable Entropy Think of Aggregation on Group Decision Making显示文摘In this paper, aggregation question based on group decision making and a single decision making is studied. The theory of entropy is applied to the sets pair analysis. The system of relation entropy and the transferable entropy notion are put. The character is studied. An potential by the relation entropy and transferable entropy are defined. It is the consistency measure on the group between a single decision making. We gained a new aggregation effective definition on the group misjudge. | CHENG Qi-yue, QIU Wan-hua, LIU Xiao-feng School of Management, Beijing University of Aeronautics and Astronautics, Beijing 100083, China | 2002 | Systems Science and Systems Engineering2002，11，1： | 10 |
| 20 | Physical analysis and numerical simulation for the dynamic behaviour of vehicles in pitching oscillations or rocking motions显示文摘Analytical methods of nonlinear dynamics and numerical simulations for the cou-pling equations of Navier-Stokes and flight mechanics are used to study the dynamic behaviour of pitching motions of reentry capsules with the variation of Mach number, and rocking motions of swept wings with the variation of angle of attack. Conditions under which the dynamic instability, Hopf bifurcation and saddle-node bifurcation occur are obtained. The node-saddle-node topological structure in the phase portrait, i.e. the state of bi-attractors (attracting basins) is described. The evolving process of dynamic behaviour and flow fields are given. The theories are compared with some numerical simulations conducted by the authors. Besides, some verifiable experi-mental results are cited. The agreement between them is very well. | ZHANG HanXin1,2,3, ZHANG Zhao1,3, YUAN XianXu1,2, LIU Wei1, XIE YuFei1,2 & YE YouDa1,2 1 China Aerodynamics Research and Development Center, Mianyang 621000, China 2 National Laboratory for Computational Fluid Dynamics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China 3 School of Aerospace, Tsinghua University, Beijing 100084, China | 2007 | Science China(Technological Sciences)2007，50，4： | 10 |
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