Design, Modeling and Analysis of a Sharp-edge Hypersonic Stealthy Re-entry Vehicle

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Abstract

In 2005 and in 2012, the SHarp Edge Flight EXperiment SHEFEX I and SHEFEX II of DLR have been established. Low lift-to-drag ratio of them limits active control ability. This paper studies on a sharp-edge stealthy re-entry vehicle with high lift-to-drag ratio. The focus will be laid upon designing and modeling of a sharp-edge stealthy re-entry vehicle by analyzing of lift-to-drag ratio and center of gravity, and also upon stealth performance researches. All aerodynamic performance analysis are based on Modified Newtonian Theory, it's proved to be more precise for a sharp-edge hypersonic re-entry vehicle relative to the Piston Theory and Shock-Expansion Method. A procedure based on physical optics and method of equivalent currents for radar cross section calculation. As result, the configuration and the center of gravity are determined, and a good stealth performance is demonstrated.

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Liu, G., Li, D., Xiang, J., & Luo, W. (2015). Design, Modeling and Analysis of a Sharp-edge Hypersonic Stealthy Re-entry Vehicle. In Procedia Engineering (Vol. 99, pp. 163–167). Elsevier Ltd. https://doi.org/10.1016/j.proeng.2014.12.521

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