The development of an approach to the determination of the dynamic characteristics of hypersonic vehicles which is intentionally generic and basic is given. The approach involves a 2D hypersonic aerodynamic analysis utilizing Newtonian theory, coupled with a 1D aero/thermoanalysis of the flow in a scramjet-type propulsion system. In addition, the airframe is considered to be elastic, and the structural dynamics are characterized in terms of a simple lumped-mass model of the invacuo vibration modes. The vibration modes are coupled to the rigid-body modes through the aero/propulsive forces acting on the structure. The control effectors considered on a generic study configuration include aerodynamic pitch-control surfaces, as well as engine fuel flow and diffuser area ratio. The study configuration is shown to be highly statically unstable in pitch, and to exhibit strong airframe/engine/elastic coupling in the aeroelastic and attitude dynamics, as well as the engine responses.
An integrated analytical aeropropulsive/aeroelastic model for the dynamic analysis of hypersonic vehicles
AIAA, Atmospheric Flight Mechanics Conference ; 1992 ; Hilton Head Island, SC, United States
1992-01-01
Aufsatz (Konferenz)
Keine Angabe
Englisch
Analytical Aeropropulsive-Aeroelastic Hypersonic-Vehicle Model with Dynamic Analysis
Online Contents | 1994
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