Time-varying structural reliability of a multistage solid-propellant launch vehicle subjected to deterministic and stochastic loads is investigated. The study is of practical importance because the launch vehicle’s structure is influenced by a combination of external aerodynamics as well as inertial and internal ballistic loads emanating from the solid rocket motors. In addition, as launch-vehicle flight conditions change during flight, the vehicle will be subjected to time-varying loads. In this sense, the environmental, aerodynamic, and internal pressure fluctuations can be interpreted as stochastic forces affecting the launch-vehicle structural reliability. To account for temporal variations of the total loads experienced by the launch vehicle, its time-dependent structural reliability is formulated via a stress limit state function. The first-order reliability method is used to estimate the launch-vehicle cumulative failure probability as a function of flight time. The results are verified using the method of direct Monte Carlo simulation. Finally, a sensitivity of launch-vehicle structural reliability is performed against some statistical variations related to solid rocket motor and launch-vehicle design parameters that dominantly affect time-varying structural reliability.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Time-Varying Structural Reliability of Launch Vehicle via Extreme Response Approach


    Beteiligte:
    Raouf, N. (Autor:in) / Pourtakdoust, Seid H. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.2017




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






    Launch vehicle historical reliability

    Sauvageau, Donald / Allen, Brian | AIAA | 1998


    Reusable Launch Vehicle Attitude Control Using Time-Varying Sliding Modes

    Shtessel, Yuri / Zhu, Jim / Daniels, Dan | AIAA | 2002


    Time-varying response surface method for high-temperature structural reliability analysis

    Ma, Xiaobing / Ren, Hongdao / Cai, Yikun | British Library Online Contents | 2015