亚轨道飞行器发动机故障下配平能力分析

doi:10.7527/S1000-6893.2016.0240

Abstract

Abstract:

In order to analyze the trim capacity of the suborbital reusable launch vehicle with engine failure, the problem of trim capacity is converted to the problem of compatibility decision of linear equality/inequality mixture equations. A method based on vertex-projection is proposed and used in trim capacity analysis. The accuracy and efficiency of the method are verified. In the framework of trim capacity analysis, the trim capacities at failure-time and for state-space under different failure modes are analyzed respectively. Moreover, contingency strategy is given in the case that trim capacity is insufficient. Simulation results indicate that the method can rapidly calculate non-trimmable region, and analyze the influence of trim capacity on flyable region. These results have important reference values for abort strategy and abort trajectory optimization.

Key words: suborbital reusable launch vehicle, engine failure, trim capacity, compatibility decision, mixed equations

CLC Number:

V448.1

WANG Wenhu, HAN Bing. Trim capacity analysis of suborbital reusable launch vehicle with engine failure[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(12): 3646-3656.

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Trim capacity analysis of suborbital reusable launch vehicle with engine failure

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