运输机超低空重装空投纵向反步滑模控制研究

Abstract

Abstract:

This paper analyzes the procedures of super-low altitude heavy cargo airdrop. Because of the enormous quantity of the cargo and the super-low altitude of the airdrop, it is necessary to study the nonlinear movement equations of the plane taking the position and velocity of the cargo as the state variables. With this method, the equations can describe accurately the response of the altitude and posture of the plane, which are influenced by the traction of the parachute(s), and the position and velocity of the cargo in real time. Meanwhile, the accurate nonlinear mathematic model is converted into a linear input-output model by means of feedback linearization, and a longitudinal adaptive sliding mode controller is designed based on the backstepping method which is able to solve the mismatching uncertain control problem for super-low altitude heavy cargo airdrop, keep the altitude of the plane steady, and ensure the safety of low altitude heavy cargo airdrop operation.

Key words: super-low altitude heavy cargo airdrop, flight control, feedback linearization, backstepping control, sliding mode control

CLC Number:

V249.1

YANG Yu, LU Yuping. Backstepping Sliding Mode Control for Super-low Altitude Heavy Cargo Airdrop from Transport Plane[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2012, 33(12): 2301-2312.

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Backstepping Sliding Mode Control for Super-low Altitude Heavy Cargo Airdrop from Transport Plane

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