Viewport window in pressure hull is susceptible to high stress and can experience cracks at its corner. For studying the viewport behaviour at its corner a numerical analysis is carried out on the viewport window. The results show that the stresses are high at the corner. Furthermore, the corner of the viewport is smoothened using the fillet radius and biological growth methods. It is observed that the fillet radius method helps in reducing the localised stresses. The use of the biological growth method gives further reduction in stress. To validate the numerical results, an experimental study is conducted for viewport with fillet radius and biological growth methods. Three viewport models are manufactured and tested at 60 MPa hydrostatic pressure. The axial displacement, under hydrostatic pressure, is obtained at the centre of the viewport window of the low-pressure face. It is observed that the experimental results are in good agreement with the numerical results.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Numerical and experimental study on the safety of viewport window in a deep sea manned submersible


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2020-08-08


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt





    Safety assessment of the acrylic conical frustum viewport structure for a deep-sea manned submersible

    Du, Qinghai / Hu, Yong / Cui, Weicheng | Taylor & Francis Verlag | 2017


    MULTI-HULLED DEEP SUBMERSIBLE MANNED VEHICLE (VERSIONS)

    STOLBOV VLADIMIR MIKHAJLOVICH | Europäisches Patentamt | 2015

    Freier Zugriff

    Deep-sea cable laying system of manned submersible

    XU KE / MAO LIMIN / ZHAO HUI | Europäisches Patentamt | 2015

    Freier Zugriff

    Japanese 6500 m deep manned research submersible project

    Nakanishi, T. / Takagawa, S. / Tsuchiya, T. et al. | Tema Archiv | 1986