A Switching-Based Control Method for the Fairing Separation Control of Axisymmetric Hypersonic Vehicles

For hypersonic-vehicle fairing separation, the reliable separation of and rapid suppression disturbance are required in scenarios where there is high dynamic pressure abrupt changes aerodynamic shape aircraft as well overall parameters. A switching-based control method proposed this paper for interference aiming to ensure stability system cases controlled object. First, an unsteady-flow calculation adopted clarify characteristics model fairing-separation process established; then, two states aircraft, with without fairing, transformed into a subsystem switching characteristics. The attitude-stability problem solving arbitrary switched by using linear matrix inequality (LMI) approach. Meanwhile, designed considering interaction movement during separation. simulation results showed that can realize under effectively suppress process.