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Journal of Projectiles, Rockets, Missiles and Guidance >

2018 , Vol. 38 >Issue 4: 69 - 72

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2018.04.017

The Research on Departure Stability Criteria for Hypersonic Vehicle

  • HE Lei ,
  • YAO Yuemin ,
  • TAN Wangchun ,
  • XIA Qunli
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  • 1 School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
    2 Beijing Institute of Space Long March Vehicle, Beijing 100076, China

Received date: 2017-11-07

  Online published: 2025-05-30

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Abstract

The dynamic departure stability criteria CnβDYN and lateral control departure criteria LCDP cannot accurately predict the deviation stability characteristics of aircraft under high maneuverability. Based on the coupled dynamics model of hypersonic vehicle, the small-disturbance principle and the method of freezing coefficient are adopted to deduce the departure stability criteria of the whole channel coupling, which is applicable to more flight states. The applicable stability criteria are summarized under various flight conditions, and the departure stability analysis of the actual aircraft is carried out. It is pointed out that the coupling between the three channels cannot be neglected when the vehicle is in high maneuvering state, and the whole channel deviation stability criterion can reflect the deviation stability of the aircraft more accurately.

Key words： hypersonic vehicle; departure stability criteria; whole channel coupling; departure instability analysis

Cite this article

HE Lei , YAO Yuemin , TAN Wangchun , XIA Qunli . The Research on Departure Stability Criteria for Hypersonic Vehicle[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2018 , 38(4) : 69 -72 . DOI: 10.15892/j.cnki.djzdxb.2018.04.017

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