As the hypersonic glider with the highest test success rate in the United States, C-HGB (Common Hypersonic Glide Body) has been listed as a key development project by the U.S. Department of Defense, and is expected to develop into a common weapon of the three services. In this paper, the aerodynamic shape and stealth performance of this kind of "ball + biconical + wing" are studied. The orthogonal design considering interaction is used to analyze the parameter sensitivity under multiple constraints, and the improved optimization algorithm with adaptive learning mechanism based on de difference mutation operator is used for aerodynamic optimization. The optimized shape adopts the simple and efficient sharp edge design, which can not only improve the lift drag ratio, but also reduce the radar scattering cross-sectional area and greatly improve the penetration ability. The sharp edge design changes the surface temperature distribution of the projectile, reduces the manufacturing cost, and has positive significance for the design of thermal protection system and infrared stealth. The results show that the sharp edge design can obtain better aerodynamic stealth performance, and is a potential design scheme of hypersonic glider in the future.
ZHOU Wenshuo
,
XIA Lu
,
WANG Peijun
,
ZHOU Lin
. Optimization design of aerodynamic stealth with sharp edges in C-HGB layout[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021
, 42(S1)
: 726375
-726375
.
DOI: 10.7527/S1000-6893.2021.26375
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