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- 2017
菱形连翼布局俯仰力矩非线性特性数值分析
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Abstract:
摘要 采用数值模拟和理论分析相结合的方法，对高空长航时（HALE）菱形连翼布局无人机（UAV）的俯仰力矩非线性特性进行了研究。研究结果显示菱形连翼布局飞机具有2个明显的俯仰力矩非线性区域并存在上仰现象。通过采用湍动能来表示后翼受前翼尾流直接扫掠而导致的流场结构改变的强度和影响范围来解释其中一个俯仰力矩非线性区域出现的原因。通过分析前后翼流场分离的特性来解释出现另一个俯仰力矩非线性区域和力矩上仰的原因。研究了总体布局参数变化对菱形连翼布局无人机俯仰力矩特性的影响，结果显示通过调整总体布局参数可以有效地缓解俯仰力矩特性曲线非线性对飞行性能带来的影响。
Abstract：Investigation on the pitching moment non-linear characteristics of the high-attitude long-endurance (HALE) diamond joined-wing configuration unmanned aerial vehicle (UAV) was carried out by both numerical simulation and theoretical analysis method. The results show that the aircraft have two obvious pitching moment non-linear regions and there is a pitch-up phenomenon. The turbulent kinetic energy is used to represent the strength and the influence area of flow field structure of the aft-wing changed by the frt-wing wake direct sweep, which explains one of the causes of the non-linear region of the pitch moment. The other reason for the pitching moment non-linear region and pitch-up moment is explained by analyzing the separation characteristics of the aft-wing and the frt-wing. The influence of the general layout parameters of the UAV on the pitching moment characteristics of diamond joined-wing UAV was studied. The results show that adjusting the overall layout parameters can effectively mitigate the impact of pitching moment non-linear characteristics on flight performance.
| [1] | WOLKOVITCH J.The joined wing:An overview[J].Journal of Aircraft,1986,23(3):161-178. |
| [2] | KROO I,SMITH S,GALLMAN J.Aerodynamic and structural studies of joined-wing aircraft[J].Journal of Aircraft,1991,28(1):74-81. |
| [3] | LIVNE E.Aeroelasticity of joined-wing airplane configurations:Past work and future challenges-A survey[C]//Proceedings of 19th AIAA Applied Aerodynamics Conference.Reston:AIAA,2001:16-19. |
| [4] | CRAFT R L.Drag estimates for the joined-wing sensor craft:05J02[R].Dayton:AFIT,2005. |
| [5] | PéREZ-á LVAREZ J,CUERNO-REJADO C,MESEGUER J.Aerodynamic parametric analysis of an unconventional joined-wing aircraft configuration[J].Proceedings of the Institution of Mechanical Engineers,Part G:Journal of Aerospace Engineering,2016,230(10):1917-1933. |
| [6] | TYLER C,SCHWABACHER G,CARTER D.Comparison of computational and experimental studies for a joined-wing aircraft[C]//Proceedings of 40th AIAA Aerospace Sciences Meeting & Exhibit,Aerospace Sciences Meetings.Reston:AIAA,2002:1-8. |
| [7] | NANGIA R K,PALMER M E,TILMANN C P.Unconventional high aspect ratio joined-wing aircraft with aft-& forward-swept wing-tips[C]//Proceedings of the 41st AIAA Aerospace Sciences Meeting and Exhibit.Reston:AIAA,2003:1-13. |
| [8] | RASMUSSEN C C,CANFIELD R A,BLAIR M.Joined-wing sensor-craft configuration design[J].Journal of Aircraft,2006,43(5):1470-1478. |
| [9] | 楚亮,马东立,张朔,等.一种联结翼布局气动特性的求解模型[J].航空学报,2010,31(5):909-913.CHU L,MA D L,ZHANG S,et al.Solution model for aerodynamic characteristics of joined-wing configuration[J].Acta Aeronautica et Astronautica Sinica,2010,31(5):909-913(in Chinese). |
| [10] | 张晓萍,曾会华,余雄庆.CFD方法在联结翼飞机方案设计中的应用[J].南京航空航天大学学报,2004,36(6):763-768.ZHANG X P,ZENG H H,YU X Q.Application of CFD in conceptual design of joined-wing aircraft[J].Journal of Nanjing University of Aeronautics & Astronautics,2004,36(6):763-768(in Chinese). |
| [11] | 刘学强,李青,柴建忠,等.盒式机翼布局气动特性研究[J].南京航空航天大学学报,2007,39(6):722-725.LIU X Q,LI Q,CHAI J Z,et al.Aerodynamic characteristic research for box-wing aircraft[J].Journal of Nanjing University of Aeronautics & Astronautics,2007,39(6):722-725(in Chinese). |
| [12] | 李军,李占科,宋笔锋.联翼高空长航时无人机总体布局设计研究[J].飞行力学,2009,27(4):1-4.LI J,LI Z K,SONG B F.Conceptual layout design of the joined-wing high-altitude-long-endurance UAV[J].Flight Dynamics,2009,27(4):1-4(in Chinese). |
| [13] | 吉笑峰.传感器飞行器总体设计方案研究[D].西安:西北工业大学,2008.JI X F.Research on the overall design of the sensorcraft[D].Xi'an:Northwestern Polytechnical University,2008(in Chinese). |
| [14] | 李光里,李国文,黎军,等.连接翼布局气动特性研究[J].空气动力学学报,2006,24(4):513-519.LI G L,LI G W,LI J,et al.The aerodynamics investigation of the joined-wing configuration[J].Acta Aerodynamica Sinica,2006,24(4):513-519(in Chinese). |
| [15] | 王延奎,单继祥,田伟,等.联翼布局俯仰力矩非线性变化特性的数值模拟[J].北京航空航天大学学报,2012,38(7):862-866.WANG Y K,SHAN J X,TIAN W,et al.Investigation on non-linear characteristic of pitching moment of joined wing configuration aircraft[J].Journal of Beijing University of Aeronautics and Astronautics,2012,38(7):862-866(in Chinese). |
| [16] | MANIE F,RAYNAL J C.Transonic measurements on the ONERA AFV D variable sweep wing in the ONERA S2 MA-wind tunnel:AGARD-AR-138[R].[S.l.:s.n.],1979. |
| [17] | LEDOUX S,VASSBERG J,FATTA G,et al.Aerodynamic cruise design of a joined wing sensorcraft[C]//26th AIAA Applied Aerodynamics Conference.Reston:AIAA,2008:1-13. |
| [18] | MARTINEZ J,FLICK P,PERDZOCK J,et al.An overview of sensorcraft capabilities and key enabling technologies[C]//26th AIAA Applied Aerodynamics Conference.Reston:AIAA,2008:1-13. |
| [19] | REICHENBACH E,CASTELLUCCIO M,SEXTON B.Joined wing sensorcraft aeroservoelastic wind tunnel test program[C]//52nd AIAA/ASME/ASCE/AHS/ASC Structures,Structural Dynamics and Materials Conference.Reston:AIAA,2011:1-30. |
| [20] | ANDREWS S,RUBEN P E.Stability and control effects on the design optimization of a box-wing aircraft[C]//14th AIAA Aviation Technology Integration and Operations Conference.Reston:AIAA,2014:1-22. |
| [21] | BOND V,CANFIELD R A,MATOS M,et al.Wind tunnel testing of a twisted wing for longitudinal control in a joined-wing aircraft[C]//48th Structures Structural Dynamics and Materials Conference.Reston:AIAA,2007:1-7. |
