The loading of spacecraft propellants is a complex, risky operation. Therefore, diagnostic solutions are necessary to quickly identify when a fault occurs, so that recovery actions can be taken or an abort procedure can be initiated. Model-based diagnosis solutions, established using an in-depth analysis and understanding of the underlying physical processes, offer the advanced capability to quickly detect and isolate faults, identify their severity, and predict their effects on system performance. We develop a physics-based model of a cryogenic propellant loading system, which describes the complex dynamics of liquid hydrogen filling from a storage tank to an external vehicle tank, as well as the influence of different faults on this process. The model takes into account the main physical processes such as highly non-equilibrium condensation and evaporation of the hydrogen vapor, pressurization, and also the dynamics of liquid hydrogen and vapor flows inside the system in the presence of helium gas. Since the model incorporates multiple faults in the system, it provides a suitable framework for model-based diagnostics and prognostics algorithms. Using this model, we analyze the effects of faults on the system, derive symbolic fault signatures for the purposes of fault isolation, and perform fault identification using a particle filter approach. We demonstrate the detection, isolation, and identification of a number of faults using simulation-based experiments.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Model-based diagnostics for propellant loading systems


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2011


    Format / Umfang :

    11 Seiten, 20 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Propellant combustion diagnostics

    Klein, N. / Keller, G.E. | Tema Archiv | 1979


    SPACECRAFT PROPELLANT LOADING SYSTEM

    MURPHY ASHTON / LENGUITO GIOVANNI | Europäisches Patentamt | 2023

    Freier Zugriff


    Applying Model-based Diagnosis to a Rapid Propellant Loading System

    Goodrich, Charlie H. / Narasimhan, Sriram / Daigle, Matthew J. et al. | NTRS | 2009


    Optical Diagnostics of Solid-Propellant Flame Structures

    Brill, Thomas B. / Ren, Wu-Zhen / Yang, Vigor | AIAA | 2000