Instability associated with the Helios Prototype HPO3-2 vehicle was a nonlinear stability and control problem involving complex interactions among the flexible structure, the unsteady aerodynamics, the flight control system, the environmental conditions, and vehicle flight dynamics. Analysis tools and solution techniques were constrained by conventional and segmented linear methodologies that did not provide the proper level of complexity to understand the technology interactions on the vehicle s stability and control characteristics. More advanced, multidisciplinary (structures, aeroelastic, aerodynamics, atmospheric, materials, propulsion, controls, etc) 'time-domain' analysis methods appropriate to highly flexible, 'morphing' vehicles are required. Ground-test procedures and techniques appropriate to this class of vehicle are needed to validate new analysis methods and predictions


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    Titel :

    Helios Prototype Vehicle Mishap: Technical Findings, Recommendations, and Lessons Learned


    Beteiligte:
    J. H. DelFrate (Autor:in)

    Erscheinungsdatum :

    2008


    Format / Umfang :

    31 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch