This study aims to assess the vibrational behavior of a large transport airship based on finite element (FE) simulation and modal testing of its scaled model.

    Design/methodology/approach

    A full-size parametric FE model of the airframe was established according to the structural layout of the composite beam-cable airframe of the airship, and vibrational analysis of the airframe was conducted. The influence of cable pre-tension load on the inherent properties of the airframe was investigated. Based on the simplification of the full-size FE model, scaled numerical and test models of the airframe, with a geometric scale factor of 1:50, were established and built.

    Findings

    The simulation and test results of the scaled models indicated that the mode shapes of the full-size and scaled models were similar. The natural frequencies of both the full-size and scaled models complied with the theoretical similarity relation of the frequency response.

    Originality/value

    This study demonstrated that the vibrational test results of the scaled model with very large scaling can be used to characterize the modal properties of the beam-cable airframe of a large transport airship.


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    Titel :

    Characterizing vibrational behavior of a large airship based on scaled model test and analysis


    Beteiligte:
    Xu, Mingxuan (Autor:in) / Jin, Tao (Autor:in) / Kong, Weihong (Autor:in) / Li, Yazhi (Autor:in) / Shen, Xing (Autor:in) / Liu, Cheng (Autor:in) / Zhu, Tianyang (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2022-11-24


    Format / Umfang :

    16 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Large German airship stations

    Sabatier, J. | Engineering Index Backfile | 1921


    Large German airship stations

    Sabatier, J | NTRS | 1921


    Airship pod and airship

    LUO HAIBO / LI ZHAOJIE / NIE YING et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Field of large commercial airship

    Arnstein, K. | Engineering Index Backfile | 1936


    AIRSHIP

    FITTON JEREMY GEORGE DAVID | Europäisches Patentamt | 2024

    Freier Zugriff