Updating simulation models, based on flight test or other data, or creating a model using only experimental data is a necessary process that can be costly and laborious. Simulation updates are necessary for high-fidelity simulations used in analysis, control development, handling qualities prediction, fleet training, etc. This paper presents methods to update aircraft models based on deterministic and probabilistic approaches. The deterministic approach is based on a collection of signal processing, statistical analysis, and maximum likelihood estimators embodied in the Algorithms to Update Simulation Parameters with Experimental Data tool. Mathematically sound and statistically rigorous techniques are used to calculate updates of current model parameters and suggest new terms capturing unmodeled dynamics, thereby improving correlation with observed vehicle response. The probabilistic approach is based on generalized polynomial chaos theory included in the Algorithms for Uncertainty Representation and Analysis (AURA) tool. The AURA tool allows the user to update probabilistic models based on experimental data, formulated as a Bayesian inference problem. This paper will present the methodology for both deterministic and probabilistic approaches and provide examples of their application to different aircraft designs, including tilt-rotor and rotary-wing unmanned air system vehicles. The results for both deterministic and probabilistic modeling approaches demonstrate excellent results. The probabilistic approach is novel in its expressive power to propagate and update probabilistic models and provides users with an intuitive and powerful modeling approach.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Deterministic and Probabilistic Approaches to Model and Update Dynamic Systems


    Beteiligte:
    Cooper, Jared K. (Autor:in) / DeVore, Michael (Autor:in) / Reed, Adam (Autor:in) / Morelli, Eugene A. (Autor:in)

    Erschienen in:

    Journal of Aircraft ; 60 , 5 ; 1461-1479


    Erscheinungsdatum :

    2023-07-04


    Format / Umfang :

    19 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Stability Assessment Methods (Deterministic and Probabilistic)

    Wilson, Philip A. | Springer Verlag | 2018


    HYBRID DETERMINISTIC OVERRIDE OF PROBABILISTIC ADVANCED DRIVING ASSISTANCE SYSTEMS (ADAS)

    GUPTA ROHIT / WANG YANBING / WANG ZIRAN et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Hybrid deterministic override of probabilistic advanced driving assistance systems (ADAS)

    GUPTA ROHIT / WANG YANBING / WANG ZIRAN et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Shallow Foundation Design through Probabilistic and Deterministic Methods

    Pereia, Carlos / Caldeira, L. | HENRY – Bundesanstalt für Wasserbau (BAW) | 2011

    Freier Zugriff