SIMULATION OF FLUID-SOLID INTERACTION ON WATER DITCHING OF AN AIRPLANE BY ALE METHOD

Ditching is considered as one of the important aspects of safety performances of airplanes. It is related primarily with the fluid-solid interaction, whose studies mainly depend on experiments at the present time. Numerical and analytical methods for fluid-solid interaction by using 3-D full scale a...

Full description

Saved in:
Bibliographic Details
Published inJournal of hydrodynamics. Series B Vol. 23; no. 5; pp. 637 - 642
Main Authors HUA, Cheng, FANG, Chao, CHENG, Jin
Format Journal Article
LanguageEnglish
Published Singapore Elsevier Ltd 01.10.2011
Springer Singapore
Department of Mechanics and Engineering Science, Fudan University, Shanghai 200433, China%School of Mathematical Sciences, Fudan University, Shanghai 200433, China
Subjects
Aircraft accidents
Airplanes
ALE方法
Arbitrary Lagrange-Euler (ALE)
Computer simulation
Ditching
Engineering
Engineering Fluid Dynamics
finite element method
fluid structure interaction
Fluid-solid interactions
Hydrology/Water Resources
Mathematical analysis
Mathematical models
Numerical and Computational Physics
Safety
Simulation
安全性能
开沟
数值分析方法
数值模拟
水流
非线性有限元
飞机模型
fluid structure interaction
finite element method
Arbitrary Lagrange-Euler (ALE)
ditching
fmite element method
Online AccessGet full text

Cover

More Information
Summary:Ditching is considered as one of the important aspects of safety performances of airplanes. It is related primarily with the fluid-solid interaction, whose studies mainly depend on experiments at the present time. Numerical and analytical methods for fluid-solid interaction by using 3-D full scale airplane＇s model will reduce the dependence on the expensive model tests. Numerical studies can be used to estimate the safety of ditching and provide a reference for the crashworthiness design. This article proposes a 3-D dynamical structural model after the real shape of an airplane and an Arbitrary Lagrange-Euler （ALE） fluid-field model, to simulate the fluid-solid interactions caused by low speed ditching. The simulation is based on interaction computational methods, within LS-DYNA nonlinear finite-element code. The results of pressure distributions and accelerating time histories of the airplane＇s subfloor are discussed in the context of the safety of ditching, and the simulation results and the analytical methods are verified.
Bibliography:31-1563/T
Ditching is considered as one of the important aspects of safety performances of airplanes. It is related primarily with the fluid-solid interaction, whose studies mainly depend on experiments at the present time. Numerical and analytical methods for fluid-solid interaction by using 3-D full scale airplane＇s model will reduce the dependence on the expensive model tests. Numerical studies can be used to estimate the safety of ditching and provide a reference for the crashworthiness design. This article proposes a 3-D dynamical structural model after the real shape of an airplane and an Arbitrary Lagrange-Euler （ALE） fluid-field model, to simulate the fluid-solid interactions caused by low speed ditching. The simulation is based on interaction computational methods, within LS-DYNA nonlinear finite-element code. The results of pressure distributions and accelerating time histories of the airplane＇s subfloor are discussed in the context of the safety of ditching, and the simulation results and the analytical methods are verified.
ditching, fluid structure interaction, Arbitrary Lagrange-Euler （ALE）, finite element method
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1001-6058
1878-0342
DOI:10.1016/S1001-6058(10)60159-X