| Autor: |
Hussein Youssef, Howard P. Lee, Atherton Carty, Rajiv S. Chowdhry |
| Rok vydání: |
2002 |
| Předmět: |
|
| Zdroj: |
AIAA Guidance, Navigation, and Control Conference and Exhibit. |
| Popis: |
A new methodology is developed to optimize the aero surfaces using model center tools in rapid conceptual design (RCD) environment. The objective function is based on minimizing the total aero surfaces weight while meeting the trim requirements and the targeted level of stability augmentation along the entire entry trajectory for reusable launch vehicle (RLV). The trajectory is divided in regions where angle of attack (AOA)-alpha and bank angle-sigma are parameterized to allow for trajectory reshaping during the optimization of surfaces sizing. The aero surfaces parameters used in the optimization are canted fin area and incidence angle, and flap area. Usually, the entry portion of the trajectory is designed to yield maximized downrange subject to structural load and aero-thermal constraints. In this paper, the trajectory optimization and aero surfaces sizing are combined in new formulation. That is to minimize the aero surfaces weight while maintaining the optimum performance. The total process is performed in RCD environment with the aide of model center analysis tools. The proof of concept is demonstrated using the RLV example in Reference [1]. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
