A linearized ALE Boundary Element Method for flexible 3D bluff bodies in potential flows: Towards application to airship aeroelasticity

Mestre, Robin Le; Schotté, Jean-Sébastien; Doaré, Olivier

doi:10.1016/j.cma.2022.114624

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…Although the deformation contour of airship were also obtained from simulation, for convenience, they are shown in the Figures 10,11,12 to be compared with deformation contour caused by concentrated forces.…”

Section: Fig 4 Test Facilitiesmentioning

confidence: 99%

“…Gao et al [11] proposed a semi-rigid stratosphere airship design and performed numerical simulations to analyze the deformation characteristics during the whole ascending and descending process. Mestre et al [12] introduced a new formalism to study the linear behavior of a fluid-structure interface in a time-dependent ambient flow, and presented their numerical simulation and practical application for a simplified flexible airship test case model. Gao et al [13] employed finite element method to model the inflatable structure(airship) and predict its potential maximum deformation, then utilized a laser scanning technique for non-contact measurements of the anticipated maximum deformation.…”

Section: Introductionmentioning

confidence: 99%

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Research on Static Loading Method for Flexible Airship

Meng,

Mao,

Huang

et al. 2024

Preprint

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In this paper, the static loading method is presented for studying nonlinear aerodynamic effect of flexible airship. We calculated the coupled aerodynamic and deformation problem by numerical simulation, and established instrumentation system indoor based on the data of the large airship developed by our client. By converting aerodynamic load into the concentrated force, we conducted static load test on the airship model. Consequently, we obtained the simulated deformation contours at various angles of attack and typical wind speed both by aerodynamic load and concentrated forces. Moreover, we measured the deformations of five measured zones with the depth processing camera, and compared the measured and simulated deformations. The results show our static loading method can effectively reflect the deformation distribution caused by aerodynamic loads on flexible airship, and it is effective to study the deformation of flexible airship at actual flight condition by this method.

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Section: Fig 4 Test Facilitiesmentioning

confidence: 99%