Adaptive Pole Assignment Control for Generic Elastic Hypersonic Vehicle

Abstract

This paper uses robust pole assignment method to design an adaptive velocity and altitude tracking control algorithm for the longitudinal model of a wave rider configuration air-breathing hypersonic vehicle, which has strong coupling between structure, propulsion and aerodynamics. Base on the elastic hypersonic vehicle model CSUAL_GHV, the simulations using adaptive robust pole assignment control method and adaptive non-robust pole assignment control method are carried out respectively. The results show that, compared with the non-robust pole assignment control method, control system using adaptive robust pole assignment control method not only achieves the velocity and altitude tracking goal with tracking error less than 1%, but also the vibration motion of the hypersonic vehicle is suppressed sufficiently.  Air-breathing hypersonic vehicle is a kind of aircraft flying in the near space atmosphere, which is powered by scramjet and flying faster than 5 Mach. Because of its high speed, the hypersonic vehicle can be used as a military rapid combat platform as well as a fast civilian global transportation, and thus have received much attention. The last successful flight test of the U.S. X-51A Waverider hypersonic vehicle indicates that the hypersonic flight technology has been developed gradually from the experimental stage to the practical stage. Due to the use of airframe/engine integration design technology, the hypersonic vehicle exhibits strong coupling between structural, propulsion and aerodynamics. The hypersonic