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Volume 41 Issue 1
Jan.  2015
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(1): 181-186.
XIAO Houdi, LIU Longbin, LÜ Mingyunet al. Simulation on stealth characteristics of X-tail near space airship[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(1): 181-186. doi: 10.13700/j.bh.1001-5965.2014.0047(in Chinese)
Citation: XIAO Houdi, LIU Longbin, LÜ Mingyunet al. Simulation on stealth characteristics of X-tail near space airship[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(1): 181-186. doi: 10.13700/j.bh.1001-5965.2014.0047(in Chinese)
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Simulation on stealth characteristics of X-tail near space airship

doi: 10.13700/j.bh.1001-5965.2014.0047

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 23 Jan 2014
  • Publish Date: 20 Jan 2015
    Abstract
  • In order to reduce the radar cross section (RCS) of near space airship, the effect on the RCS of near space airship was studied, when its X-tail has different deformation angles. The RCS character effect of head, side and tail in the near space airship was simulated, when X-tail has different deformation angles based on physical optics method. Physical optics and multilevel fast multipole method (MLFMM) were applied to simulate the RCS of contrast ball, and the results show that the physical optics method is accurate and appropriate. The simulation results show that the X-tail angle on different deformation has less influence on head RCS of airship, but has great influence on side RCS of airship. The side RCS reduced to 13.7% when deformation angle changed from 0 ° to 20 °. The deformation of X-tail can significantly improve the performance of near space airship lateral stealth, while increasing the other direction RCS.

     

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