Real-Time Flight Trajectory Generation Applicable to Emergency Landing Approach
-
- MIWA Masahiro
- Department of Aeronautics and Astronautics, The University of Tokyo
-
- TSUCHIYA Takeshi
- Department of Aeronautics and Astronautics, The University of Tokyo
-
- YONEZAWA Satoshi
- Engineous Japan, Inc.
-
- YOKOYAMA Nobuhiro
- Department of Aerospace Engineering, National Defense Academy
-
- SUZUKI Shinji
- Department of Aeronautics and Astronautics, The University of Tokyo
Search this article
Abstract
Flight management systems have greatly reduced cockpit workloads, but are not capable of calculating new flight plans in real time when flight characteristics vary or when flight trajectories become nonstationary. This paper presents a real-time flight trajectory generator (R-FTG) applicable to emergency landing approaches. First, the R-FTG calculates a preliminary flight path, which consists of an initial turn, a straight-line flight, and a terminal turn. The R-FTG then optimizes the preliminary flight path by using a direct collocation method. In order to give the direct collocation method real-time performance, an idea called stage division is incorporated. Combining the direct collocation and stage division enables real-time generation of near optimal flight trajectories. Additionally, wind effects are considered in the generating process. The R-FTG is evaluated by numerical simulations; calculation results of the R-FTG are compared with those of an offline optimization method, and the calculation results under different bank angle constraints are examined. The calculations for the wind effects are also studied. These results show the effectiveness of the proposed real-time flight trajectory generator.
Journal
-
- TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
-
TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 52 (175), 21-28, 2009
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
- Tweet
Details 詳細情報について
-
- CRID
- 1390001204078563712
-
- NII Article ID
- 10026270197
-
- NII Book ID
- AA0086707X
-
- ISSN
- 21894205
- 05493811
-
- NDL BIB ID
- 10222427
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed