Energy management trajectory design method for powered reusable aircraft

Abstract

The invention discloses an energy management trajectory design method for a powered reusable aircraft, and belongs to the technical field of trajectory design and guidance. The method comprises the following steps: determining parameters of the reentry vehicle, and establishing a flight dynamics model of the reentry vehicle; designing a lateral flight trajectory of the aircraft; designing a longitudinal flight track of the aircraft; and deducing according to the remaining voyage, determining an attack angle, obtaining a whole-course control quantity, and completing trajectory design. The method is suitable for the energy management landing problem when the aircraft is insufficient in energy to return to the airport, the trajectory design thought of the energy management section is that the trajectory is designed firstly, the change of the state quantity is obtained under the condition that longitudinal and lateral movement is known, and therefore the needed control quantity is obtained. An existing unpowered aircraft energy management section trajectory design method is improved, and the method for designing the energy management section trajectory of the powered reusable aircraft is obtained.

Description

technical field [0001] The invention relates to a trajectory design method for energy management of a powered reusable aircraft, belonging to the technical field of trajectory design and guidance. Background technique [0002] The landing stage of the reusable aircraft will go through energy management and approach and landing stages. The energy management stage is mainly to adjust the heading and energy, so that the energy of the aircraft reaches the approach and landing conditions and aligns with the airport. However, on the way back, there may be a situation where the energy is not enough to return to the airport. At this time, the powered aircraft can start the engine in the air to replenish energy, but the energy management trajectory design method for energy replenishment is still in a blank state. Contents of the invention [0003] In order to solve the problems existing in the background technology, the present invention provides a method for designing an energy ma...

AI Technical Summary

Problems solved by technology

However, on the way back, there may be a situation where the energy is not enough to return to the airport. At this time, the powered aircraft can start the engine in the air to replenish energy, but the energy management trajectory design method for energy replenishment is still in a blank state.

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