ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Tracking Oriented Dynamics Modeling of Airbreathing Hypersonic Vehicles
Received date: 2013-09-03
Revised date: 2013-11-04
Online published: 2014-06-20
Supported by
Aeronautical Science Foundation of China(20130196004)
The disadvantages of traditional acceleration model based on dynamic pressure are analyzed according to dynamic characteristics of airbreathing hypersonic targets. In the framework of gravity turn modeling structure, a generalized model for tangent acceleration along with a mixed model consisting of oblique shock and a non-analytical models for normal acceleration is proposed according to thrust generating mechanism of scramjet engine as well as the oblique shock equation and Prandtl-Meyer equation of hypersonic flow field. Then, the mode space corresponding to these new models is analyzed with approximate calculation methods for hypersonic flow and a uniformly distributed model set is designed. A tracking scenario of hypersonic target maneuvering with instant change of angle of attack, roll angle and engine state is simulated. Simulation results demonstrate the efficiency of the new model set for tracking hypersonic targets with instant acceleration and turn.
LI Haining , LEI Humin , ZHAI Dailiang , SHAO Lei , LI Jiong . Tracking Oriented Dynamics Modeling of Airbreathing Hypersonic Vehicles[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014 , 35(6) : 1651 -1664 . DOI: 10.7527/S1000-6893.2013.0457
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