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Disturbance error mathematic model of unmanned hypersonic test vehicle (UHTV) is analyzed in the paper. To meet the requirement of UHTV flight integration test, the separation disturbance model, the stochastic wind speed model, and uncertainty model of elastic effect are designed. The aerodynamic uncertainty parameters during engine on and off in level flight are given.
The ramjet is a new type propulsion system for high-speed flight test aircraft. The ultimate success of sustained high-speed flight will depend on configuring a fine and stable attitude flight control and robust airframe-propulsion-control combination. The mathematical models of high-speed aerodynamic forces and moments were established. A bank-to-turn autopilot structure was used for the longitudinal...
The objective of this paper is to accomplish the modeling and coupling effect analysis of a high-speed aircraft. A 2D model of the high-speed aircraft is assumed. The description of the aerodynamic characteristics including forces and moments system models is included in this paper. The analysis and policies of decoupling are put forward based on the data of the high-speed aircraft. Results show that...
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