将来の風速情報を考慮した航空機操縦支援システムの研究開発

抄録

It has become more necessary to find a way to fly safely under turbulence since external disturbances are still major cause of the air traffic accidents. One possible solution for this problem is to develop a control advisory system for pilots using wind speed information ahead of the aircraft measured with the Doppler LIDAR. This paper mainly focuses on how to calculate such control advice from the LIDAR information. We propose a control advisory calculation based on the Energy Principle. It provides advice to control the longitudinal aircraft dynamics from the viewpoint of the mechanical energy, a concept that is intuitive to pilots. In order to understand the Energy Principle, the aircraft’s equations of motion will be derived starting with the mechanical energy transformation law. Owing to the Energy Principle, the thrust controls the mechanical total energy and the elevator distributes the total energy between the kinetic and potential energies. The total energy and the energy distribution are fed back to calculate the control advice. For evaluating how well the proposed system calculates suitable control advice, numerical simulations were carried out. The results clearly show that the preparation of the energy for the expected wind shear can be achieved.