An efficient multi-objective design tailoring procedure seeking to improve the vibroacoustic performance of a fuselage panel while maintaining or reducing weight is presented. The structure considered is the pultruded rod stitched efficient unitized structure, a highly integrated composite structure concept designed for a noncylindrical, next-generation flight vehicle fuselage. Modifications to a baseline design are evaluated within a six-parameter design space including spacing, flange width, and web height for both frame and stringer substructure components. The change in sound power radiation attributed to a design change is predicted using finite-element models sized and meshed for analyses in the 500 Hz, 1 kHz, and 2 kHz octave bands. Three design studies are carried out in parallel while considering a diffuse acoustic field excitation and two types of turbulent boundary-layer excitation. Kriging surrogate models are used to reduce the computational costs of resolving the vibroacoustic and weight objective Pareto fronts. The resulting Pareto optimal designs are then evaluated under a static pressurization ultimate load to assess structural strength and stability. Results suggest that choosing alternative configurations within the considered design space can reduce weight and improve vibroacoustic performance without compromising strength and stability of the structure under the static load condition considered, but the tradeoffs are significantly influenced by the spatial characteristics of the assumed excitation field.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Vibroacoustic Tailoring of a Rod-Stiffened Composite Fuselage Panel with Multidisciplinary Considerations


    Beteiligte:
    Allen, Albert R. (Autor:in) / Przekop, Adam (Autor:in)

    Erschienen in:

    Journal of Aircraft ; 52 , 2 ; 692-702


    Erscheinungsdatum :

    2015-03-13


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Degradation investigation in a postbuckling composite stiffened fuselage panel

    Orifici, A.C. / Thomson, R.S. / Degenhardt, R. et al. | Tema Archiv | 2008


    Stiffened Composite Fuselage Barrel Optimization

    Movva, R.G. / Mittal, A. / Agrawal, K. et al. | British Library Conference Proceedings | 2012


    Vibroacoustic studies on structurally optimized Pareto designs of curved composite stiffened panel

    Joshi, Pankaj / Mulani, Sameer B. / Kapania, Rakesh K. | AIAA | 2024


    H160 COMPOSITE FUSELAGE — MULTIDISCIPLINARY APPROACH

    Arelt, R. / Arent, J.-C. / Gorlich, S. | British Library Conference Proceedings | 2021