Abstract | ||
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This paper focuses on the phugoid dynamic characteristic of hypersonic gliding vehicle. By regarding equilibrium glide as
the fixed state of reentry trajectory, the dynamic equations are simplified and a hyper-geometric equation with a forcing
function is deduced. Linearization theory is applied to analyze the characteristic of the motion, and the phugoid mode is
found to be stable. An analytical solution of flight path angle as a function of speed is derived based on General Multiple
Scale theory. The dynamic characteristic is analyzed, and the analytic solution is found to be in good agreement with the
numerical simulation. When the initial states do not satisfy equilibrium glide condition or perturbation occurs, a damped
oscillation along the equilibrium glide trajectory would occur. The damping diminishes as the speed decreases. The number
of oscillations is decided by the lift-to-drag ratio, the initial altitude and the initial/final speed. |
Year | DOI | Venue |
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2011 | 10.1007/s11432-011-4196-9 | SCIENCE CHINA Information Sciences |
Keywords | DocType | Volume |
equilibrium glide,general multiple scale theory,hypersonic gliding vehicle,phugoid dynamics | Journal | 54 |
Issue | ISSN | Citations |
3 | 1869-1919 | 1 |
PageRank | References | Authors |
0.39 | 0 | 4 |
Name | Order | Citations | PageRank |
---|---|---|---|
XiaoQing Chen | 1 | 1 | 0.39 |
ZhongXi Hou | 2 | 1 | 1.06 |
Jianxia Liu | 3 | 4 | 4.03 |
Xiaoqian Chen | 4 | 58 | 18.29 |