This paper deals with explicit numerical simulation of fixed-wing aircraft ditching using a coupled approach of Smoothed Particle Hydrodynamics and Finite Elements. Particular focus is put on recent advances toward simulation of flexible full aircraft models, which comprises significant challenges with respect to the numerical efficiency as well as the model complexity. First, the pursued numerical approach is briefly presented. In order to deal with aforementioned challenges, an automated modular tool, which generates numerical models and launches ditching simulations, is presented. The paper provides a brief explanation of state-of-the-art aircraft as well as fluid modelling techniques used and furthermore presents an integrated model that computes aerodynamic loads during the simulation. The developed tool is used to conduct various numerical studies. First, the improved efficiency of such simulations over the state of the art is shown. Next, results of parameter studies are presented, demonstrating the effects of impact conditions on the aircraft motion. Finally, the structural deformation experienced during ditching of a detailed finite element aircraft model is analysed and its effects on the aircraft motion are discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Advances in numerical ditching simulation of flexible aircraft models


    Contributors:

    Published in:

    Publication date :

    2018-03-04


    Size :

    16 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    AIRCRAFT DITCHING NUMERICAL SIMULATION

    Climent, H. / Benitez, L. / Rosich, F. et al. | British Library Conference Proceedings | 2006


    Numerical simulation of flexible aircraft structures under ditching loads

    Siemann, M. H. / Kohlgrüber, D. / Voggenreiter, H. | Online Contents | 2017


    Numerical simulation of flexible aircraft structures under ditching loads

    Siemann, M. H. / Kohlgrüber, D. / Voggenreiter, H. | Springer Verlag | 2017


    Modelling strategies for numerical simulation of aircraft ditching

    Bisagni, C. / Pigazzini, M.S. | Taylor & Francis Verlag | 2018

    Free access

    Numerical Simulation of Aircraft Ditching Based on ALE Method

    Hu, Wei ;Wang, Yong Hu ;Chen, Cai Hua | Trans Tech Publications | 2014