Dynamics and control of hypersonic vehicles - The integration challenge for the 1990'sThe dynamic characteristics of hypersonic vehicles are reviewed, with special attention to the interactions between the airframe, engine, and structural dynamics. Based on a preliminary investigation of the dynamics of a generic vehicle configuration similar to the X-30 with Scramjet propulsion, an assessment of these interactions is presented. The control effectors include aerodynamic pitch-control surfaces, as well as engine fuel flow and diffuser area ratio. The study configuration is statically instable in pitch, and exhibits strong airframe/engine/elastic coupling in the attitude dynamics and engine responses. This strong coupling will require a highly integrated airframe-engine control system, and the performance of the attitude control system will be contingent upon the ability to adequately deal with the structural aeroelastic response and engine dynamics.
Document ID
19920035216
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schmidt, David K. (Arizona State Univ. Tempe, AZ, United States)
Mamich, Harvey (Arizona State Univ. Tempe, AZ, United States)
Chavez, Frank (Arizona State University Tempe, United States)