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- Title
Flight Control Law for Stabilizing Transient Response of the Aircraft during Gun Firing.
- Authors
Ji, Chang-ho; Kim, Chongsup; Kim, Byoung Soo
- Abstract
Highly maneuverable fighter aircraft are equipped with various weapons including a gun firing system for successful air-to-air and air-to-ground missions. In the gun firing system, the muzzle is usually positioned at an offset from the centerline of the aircraft to facilitate maintainability and accessibility on the ground, to ensure the pilot's visibility, and to avoid vibrations. However, this mounting position causes the repulsive force for gun firing to generate a moment around the center of gravity and distorts the aircraft's attitude, degrading the accuracy of the target point. In this paper, we propose the application of an additional augmentation control method, as a hybrid INDI control, that combines model- and sensor-based incremental nonlinear dynamic inversion (INDI) controls to minimize the maximum overshoot of transient response of the aircraft during gun firing. As a result of the frequency- and time-domain evaluation, the additional augmentation control can effectively reduce the transient response during gun firing. In addition, this control method is more robust against uncertainties, and its structure is simple compared to the conventional open-loop type gun compensation control since it does not require any gain scheduling according to flight conditions.
- Subjects
FIREARMS; GUN control; CENTER of mass; TRANSIENTS (Dynamics); FLIGHT; MAINTAINABILITY (Engineering); AIR travel; HYBRID electric airplanes
- Publication
Aerospace (MDPI Publishing), 2023, Vol 10, Issue 4, p365
- ISSN
2226-4310
- Publication type
Article
- DOI
10.3390/aerospace10040365