| タイトル | Optimization and guidance of abort landing trajectories in a windshear |
| 著者（英） | Wang, T.; Tzeng, C. Y.; Melvin, W. W.; Miele, A. |
| 著者所属（英） | Delta Air Lines, Inc.|Rice Univ. |
| 発行日 | 1987-01-01 |
| 言語 | eng |
| 内容記述 | The abort landing problem for flight trajectories in the presence of windshear is considered with reference to flight in a vertical plane. The optimal trajectory (OT) problem is a minimax problem or Chebyshev problem of optimal control which can be converted into a Bolza problem through suitable transformations. Numerical results for several combinations of windshear intensities and initial altitudes are presented. A guidance trajectory (GT) law is implemented in feedback control form, subject to prescribed bounds on the angle of attack and its time derivative. Simplified guidance trajectories (SGT) are then considered, leading to a safe target altitude guidance. Conclusions derived for strong-to-severe windshear conditions include GT and SGT preserving the basic properties of OT, and the peak altitude drop of GT and SGT being less than that of the constant pitch trajectory and the maximum angle-of-attack trajectory. |
| NASA分類 | AIRCRAFT STABILITY AND CONTROL |
| レポートNO | 87A50460
AIAA PAPER 87-2341 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/376056 |
