Solid Mechanics and Vehicle Conceptual Design

Preliminary sizing method for near-space high supersonic unmanned aerial vehicles

  • YOU Lianxing ,
  • YU Xiongqing
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  • Key Laboratory of Fundamental Science for National Defense Advanced Design, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received date: 2016-06-11

  Revised date: 2016-09-09

  Online published: 2016-10-09

Supported by

the Fundamental Research Funds for the Central Universities (NZ2016101); A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions

Abstract

An improved method is proposed for preliminary sizing in conceptual design of a near-space high supersonic unmanned aerial vehicle (HSUAV). This improved method is aimed to enhance reliability of the preliminary sizing. An iterative sizing process is developed, in which the aerodynamic and propulsion models with higher applicability and accuracy are integrated into traditional methods of constraint analysis and mission analysis. The aerodynamic model is established using the parametric method. The aerothermodynamic model of the propulsion system is achieved by treating each stream as the one-dimensional flow of a perfect gas. With the method proposed, the preliminary sizing process in the conceptual design of the near-space high supersonic unmanned aerial vehicles is accomplished. The results show that sizing parameters are converged after several iterations, and there exist significant differences between the result obtained from the traditional method and that from the improved method. The preliminary sizing results obtained from the method proposed in the paper are more reliable due to higher fidelity of the aerodynamic and propulsion models.

Cite this article

YOU Lianxing , YU Xiongqing . Preliminary sizing method for near-space high supersonic unmanned aerial vehicles[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017 , 38(4) : 220514 -220514 . DOI: 10.7527/S1000-6893.2016.0255

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