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Volume 42 Issue 7
Jul.  2016
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Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(7): 1550-1556.
ZHU Xiaoyu, CAO Yihua, CAO Longet al. Heavy helicopter-slung-load coupling system flying qualities in closed-loop state[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(7): 1550-1556. doi: 10.13700/j.bh.1001-5965.2015.0442(in Chinese)
Citation: ZHU Xiaoyu, CAO Yihua, CAO Longet al. Heavy helicopter-slung-load coupling system flying qualities in closed-loop state[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(7): 1550-1556. doi: 10.13700/j.bh.1001-5965.2015.0442(in Chinese)
shu

Heavy helicopter-slung-load coupling system flying qualities in closed-loop state

doi: 10.13700/j.bh.1001-5965.2015.0442

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 01 Jul 2015
  • Publish Date: 20 Jul 2016
    Abstract
  • Flying qualities of a heavy helicopter augmented with an automatic flight control system (AFCS) and flying with externally slung loads are investigated using the mathematical model of the CH-53A/D helicopter. A nonlinear dynamical model of helicopter-slung-load in closed-loop state was built based on single mass-point hypothesis and a control system model. Under this hypothesis, extra degrees of freedom and constraints were brought in by the consideration of the slung-load, which made the set of equations of motion increased to a 13-order one. The coupling system in closed-loop state was linearized under small-perturbed conditions. After this, the slung-load flight control response characteristics in both time and frequency domain were analyzed. The effect of slung-load mass, slung-load rope length and helicopter velocity on coupling system's flight quality was analyzed according to the handling qualities requirements for military rotorcraft indicated by ADS-33E. The final results show that the slung-load mass, slung-load rope length and helicopter velocity have varying degrees of impact on the time domain features and handling qualities of the coupling system.

     

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    • References(16)
  • [1]
    SAMPATH P.Dynamics of a helicopter-slung load system [D].Maryland:University of Maryland,1980:16-21.
    [2]
    LUCASSEN L R,STERK F J.Dynamic stability analysis of a hovering helicopter with a sling load [J].Journal of the American Helicopter Society,1965,10(2):6-12.
    [3]
    RONEN T.Dynamics of a helicopter with a slung load [D].Stanford: Stanford University,1986:11-26.
    [4]
    STUCKY R A.Mathematical modeling of helicopter slung-load system: DSTO-TR-1257 [R].[S.l.:s.n.],2002:6-37.
    [5]
    CICOLANI L S,CONE A,THERON J N.Flight test and simulation of a cargo container slung load in forward flight [J].Journal of the American Helicopter Society,2009,54(3):032006-1-032006-18.
    [6]
    CLIFF E M,BAILEY D B.Dynamic stability of a translating vehicle with a simple sling load [J].Journal of Aircraft,1975,12(10):773-777.
    [7]
    崔瑛.直升机吊挂飞行稳定性分析[D].南京:南京航空航天大学,2005:18-50.CUI Y.Stability analysis of a helicopter with an external slung load [D].Nanjing: Nanjing University of Aeronautics and Astronautics,2005:18-50(in Chinese).
    [8]
    FUSATO D,GUGLIERI G,CELI R.Flight dynamics of an articulated rotor helicopter with an external slung load [J].Journal of the American Helicopter Society,2001,46(1):3-13.
    [9]
    齐万涛,陈仁良.直升机吊挂飞行稳定性和操纵性分析[J].南京航空航天大学学报,2011,43(3):406-412.QI W T,CHEN R L.Stability and control characteristic analysis for flight of helicopter with slung-load [J].Journal of Nanjing University of Aeronautics and Astronautics,2011,43(3):406-412(in Chinese).
    [10]
    崔利,曹义华,李国知.直升机吊挂飞行平衡、稳定性与操纵性研究[J].航空动力学报,2010,25(10):2307-2311.CUI L,CAO Y H,LI G Z.Studies on trims,stability,and control ability of helicopter with slung-load [J].Journal of Aerospace Power,2010,25(10):2307-2311(in Chinese).
    [11]
    HEFFLEY R K,JEWELL W F,LEHMAN J M,et al.A compilation and analysis of helicopter handling qualities data, volume one:Data compilation:NASA-CR-3144[R].Washington,D.C.:NASA,1980:303-357.
    [12]
    HEFFLEY R K.A compilation and analysis of helicopter handling qualities data, Volume two:Data analysis:NASA-CR-3145[R].Washington,D.C.:NASA,1979:120-142.
    [13]
    Aeronautical design standard performance specification,handling qualities requirements for military rotorcraft:ADS-33E-PRF [S].[S.l.]:United States Army Aviation and Missile Command,2000.
    [14]
    STURGEON W R.A mathematical model of the CH-53 helicopter:NASA TM-81238 [R].Washington,D.C.:NASA,1980:1-50.
    [15]
    曹龙,曹义华,李春华.直升机-吊挂耦合系统平衡特性和稳定性分析[J].北京航空航天大学学报,2014,40(9):1219-1224.CAO L,CAO Y H,LI C H.Equilibrium characteristics and stability analysis of helicopter-slung-load coupling system [J].Journal of Beijing University of Aeronautics and Astronautics,2014,40(9):1219-1224(in Chinese).
    [16]
    曹龙.直升机外吊挂动力学建模与飞行性能分析[D].北京:北京航空航天大学,2014:81-98.CAO L.Dynamics modeling and flying performance analysis of helicopter with slung-load [D].Beijing: Beihang University,2014:81-98 (in Chinese).
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