Dynamic analysis of airships with small deformations

The theory of modelling and control of airships was mostly imported from the fields of science and engineering of underwater vehicles. However the main hypothesis of rigidity of the structure may be improved to take into account the flexibility of the hull of an airship. We present an approach for a...

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Bibliographic Details
Published inRoMoCo'02 : proceedings of the third International Workshop on Robot Motion and Control pp. 209 - 215
Main Authors Azouz, N., Bestaoui, Y., Lemaitre, O.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2002
Subjects
Automotive engineering
Capacitive sensors
Deformable models
Differential equations
Finite element methods
Fluid dynamics
Lagrangian functions
Tensile stress
Underwater vehicles
Vehicle dynamics
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ISBN9788371434297
8371434294
DOI10.1109/ROMOCO.2002.1177109

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Summary:The theory of modelling and control of airships was mostly imported from the fields of science and engineering of underwater vehicles. However the main hypothesis of rigidity of the structure may be improved to take into account the flexibility of the hull of an airship. We present an approach for analysing dynamic elastic deformable airships in an ideal fluid. Our model uses the updated Lagrangian method in combination with a large displacement and small deformation (Green) strain tensor formulation. Analogy is made with classical structural dynamics. The description of the behaviour of the airship consists of a continuous differential equation that is solved using a Rayleigh-Ritz technique combined with the finite element method. The method proposes also to take into account the coupling between the rigid body motion and the deformation as well as the interaction and coupling with the fluid surrounding.
ISBN:9788371434297
8371434294
DOI:10.1109/ROMOCO.2002.1177109