Fluid-Structure Interaction Simulation Of Parachute Dynamic Behaviour

Espinosa, Christine; Bordenave, P.; Henke, Luke

doi:10.2514/6.2007-2510

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…4 French Direction Ge´ne´rale de l'Armement (DGA) Aeronautical Systems also started developing the FSI method in LS-DYNA for the replication of canopy inflation and quasi-steadystate descent phases characteristics. 23,24 Vorticity Ltd has enabled the ALE method incorporated in the LS-DYNA code to simulate the Mars supersonic parachute performance and flight dynamics in the wake of a probe. 25,26 A front tracking method based on a spring system offered an alternative to the modeling of the dynamic evolution of parachute canopy and risers.…”

Section: Introductionmentioning

confidence: 99%

Fluid–structure interaction and flight dynamics analysis of parachute–payload system during uncontrolled airdrop process

Gao

Zhang

Qian

2017

Proceedings of the Institution of Mechanical Engineers, Part G:

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The coupling behaviors of a special parachute's inflation incorporating fluid-structure interaction and flight dynamics are investigated based on the multibody dynamic model and LS-DYNA nonlinear analysis code. A new coupling model is developed to predict both the opening phase of parachute and the trajectory of payload during airdrop mission in low attitude. The moving mesh technology is introduced to realize the finite mass inflation simulation. A simplified integration platform is built by coupling the fluid-structure interaction and flight dynamics model, and solved based on two-way data transfer to efficiently replicate the dynamic characteristics of parachute finite mass inflation. Finally, the opening performances of the parachute at different airdropping velocities are analyzed and compared with the experimental results. The unsteady flow dynamics is simulated and the wake re-contacts phenomenon occurred. Taking consideration of the periodical disturb of wind gust, the trajectory of parachute-payload system is simulated and compared with the real airdrop test results. In conclusion, the results show that this coupling model is efficient to simulate and predict the dynamics behaviors of parachute-payload system in a finite mass inflation scenario, which will be beneficial for airdrop missions.

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Section: Introductionmentioning

confidence: 99%

Fluid–structure interaction and flight dynamics analysis of parachute–payload system during uncontrolled airdrop process

Gao

Zhang

Qian

2017

Proceedings of the Institution of Mechanical Engineers, Part G:

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Fluid-Structure Interaction Simulation of Ram Air Parachutes - An Application for a Kite -

Perin¹,

Belloc

Bordenave³

et al. 2015

23rd AIAA Aerodynamic Decelerator Systems Technology Conference

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The French Ministry of Defence's procurement agency, the Direction Générale de l'Armement (DGA), is in charge of assessing and testing armament systems in order to equip the armed forces and prepare for the future. DGA Aeronautical Systems, the technical centre dedicated to evaluating and testing aircraft, combines tests and evaluations to clear, among other things, parachute systems inside the Airdrop Department. In order to have a greater understanding of the behavior of parachute dynamics and to optimize the parachute system's flight tests, DGA Aeronautical Systems developed a modelling and simulation capability as an evaluation tool. Also, under the tutelage of the French Ministry of Defence, the Department of Aerodynamics, Energetics and Propulsion (DAEP) within the Institut Supérieur de l'Aéronautique et de l'Espace (ISAE) -a public institution of higher education and research -conducts research and training support for the Institute. As such, it has developed over the past ten years the topic of study "Aerodynamics of Free Flight Devices" focused particularly on paragliding. The work in this framework has allowed the formation of a basis of experimental data and the development of models to improve the design and the safety of parachutes and paragliders. Moreover, the ISAE/DAEP has expertise and resources in the field of wind tunnel tests and the study of aerodynamics and flight mechanics for paragliders. These two entities of the French Ministry of Defence work in cooperation since two years on the identification of aerodynamic coefficients for ram air parachutes. Indeed, ram-air flight dynamics are poorly understood in regard to the requirement to provide input data to a new model for an unmanned parafoil fitted with payloads. It's necessary to better understand the methods to evaluate and measure flight dynamic coefficients to improve the control guidance of operational ram-air parachutes. To avoid wasting time, and carrying out numerous expensive test flights to obtain a limited amount of experimental data, these two entities have decided to share their skills with the aim of obtaining a ram-air parachute numerical model. For this purpose, since 2003, DGA Aeronautical Systems have developed Fluid Structure Interaction (FSI) simulations of parachutes using the LS-Dyna® commercial Finite Element Analysis (FEA) tool. This tool is largely used for solving highly non-linear transient problems and enables the coupling of multi-physics simulations such as FSI simulations. This paper presents the latest improvements to the FSI simulation of ram-air parachutes, applied to a kite. This first step is necessary in order to work at low complexity before going on to more intricate applications. After explaining our experimental methodology for validation using wind tunnel tests, the method to modelize the whole kite is detailed. The comparison of relevant criteria between the experiment and the simulation results demonstrate a good accordance.

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Unsteady Aerodynamic Simulation of Supersonic Flexible Parachute including Fluid-Structure Interaction

Kimata

Taguchi

Xue

et al. 2015

23rd AIAA Aerodynamic Decelerator Systems Technology Conference

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Fluid-Structure Interaction Simulation Of Parachute Dynamic Behaviour

Cited by 3 publications

References 4 publications

Fluid–structure interaction and flight dynamics analysis of parachute–payload system during uncontrolled airdrop process

Fluid–structure interaction and flight dynamics analysis of parachute–payload system during uncontrolled airdrop process

Fluid-Structure Interaction Simulation of Ram Air Parachutes - An Application for a Kite -

Unsteady Aerodynamic Simulation of Supersonic Flexible Parachute including Fluid-Structure Interaction

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