Modeling and controller-designing of a novel driven airship

Author

Wu, Yilin ; Liu, Yu

Author_Institution

Dept. of Comput. Sci., Guangdong Univ. of Educ., Guangzhou, China

fYear

2012

fDate

25-27 July 2012

Firstpage

963

Lastpage

968

Abstract

The model and dynamics of a kind of buoyancy-ballast driven airship are studied. Based on Kirchhoff equations and Newton-Euler laws, we developed the six degree of freedom nonlinear dynamic model for an airship equipped with independent ballonets and ballast by analysis its movement and stress. On the condition of little perturbation, the nonlinear dynamic model is divided into three group equations by restricting airship motion in longitudinal, lateral and e₂-e₃ planes respectively. Then the LQR controller is designed in terms of the longitudinal model of airship. Finally, the characteristics of mode and respond to input of airship as well as the tracking on desired equilibrium flying paths by LQR controller are studied based on the linearized model and test data. The results of simulation by matlab verify the correctness of established model, the rationality of theoretical analysis and validity of control algorithms on this kind of stratospheric airship.

Keywords

airships; buoyancy; control system synthesis; linear quadratic control; linearisation techniques; nonlinear dynamical systems; perturbation techniques; Kirchhoff equations; LQR controller design; Newton-Euler laws; airship motion; buoyancy-ballast driven airship dynamics; buoyancy-ballast driven airship modeling; control algorithms; controller design; e₂-e₃ planes; equilibrium flying paths; group equations; independent ballonets; lateral planes; linearized model; longitudinal model; longitudinal planes; perturbation condition; six-degree of freedom nonlinear dynamic model; Analytical models; Atmospheric modeling; Computational modeling; Electronic mail; MATLAB; Manganese; Mathematical model; Airship; Buoyancy-Ballast driven; LQR controller; Linearization; Simulation analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (CCC), 2012 31st Chinese

Conference_Location

Hefei

ISSN

1934-1768

Print_ISBN

978-1-4673-2581-3

Type

conf

Filename

6390063