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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2016, Vol. 37 ›› Issue (8): 2348-2369.doi: 10.7527/S1000-6893.2016.0098

• Review • Previous Articles     Next Articles

Research progress of numerical method of dynamic stability derivatives of aircraft

LIU Xu, LIU Wei, CHAI Zhenxia, YANG Xiaoliang   

  1. College of Areospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Received:2016-01-11 Revised:2016-03-23 Online:2016-08-15 Published:2016-03-28
  • Supported by:

    National Natural Science Foundation of China (11172325, 11502292);NUDT Advanced Project (ZDYYJCYJ20140101)

Abstract:

Dynamic stability derivatives (for short, dynamic derivatives) are key aerodynamic parameters for designing the control system, investigating the dynamic instability boundary and studying the dynamic stability criteria of aircraft. After a brief summary of flight stability, the research progress made in the numerical simulation of aircraft dynamic stability parameters is described. The main dynamic derivative calculation methods applied over the past few years are reviewed with respect to the theoretical method, engineering approximation and computational fluid dynamics (CFD) simulation. The merits of these dynamic derivative prediction methods are identified, and problems with numerical simulation of dynamic derivatives in terms of theoretical basis, unsteady aerodynamic modeling, the precision and efficiency of the prediction methods are pointed out. A mature, reliable prediction of dynamic stability characteristic enables us to evaluate and select different air design plans so as to minimize the aircraft design cost and mitigate risk exposure. Finally, the development trend of numerical simulation of dynamic derivatives is prospected.

Key words: numerical methods, computational fluid dynamics, stability, time domain analysis, dynamic derivatives

CLC Number: