Abstract
To achieve the attitude control of air-breathing hypersonic vehicle, it's necessary to analyze its complex aerodynamic characteristics, and complete the control system design. Aerodynamic characteristic of air-breathing hypersonic vehicle, namely, the variations of lift coefficient, lift-drag ratio and pitch-moment coefficient with that of attack angle at different Mach numbers, is explored by the data from wind tunnel test. The longitudinal dynamic coefficients are calculated to analyze its stability. Two different control strategies are designed based on aerodynamic analysis, one is attack angle feedback control and the other is normal overload control, and their time domain and frequency domain characteristics are calculated respectively. Experiment result shows that air-breathing hypersonic vehicle not only satisfies longitudinal dynamic stability, but also demonstrates good flight control performance.
| Original language | English |
|---|---|
| Pages (from-to) | 144-148 |
| Number of pages | 5 |
| Journal | Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology |
| Volume | 44 |
| Issue number | 11 |
| State | Published - Nov 2012 |
Keywords
- Aerodynamic characteristic
- Flight control performance
- Hypersonic vehicle
- Longitudinal dynamic characteristic
- Stability