In many engineering applications, probability theory has been employed in a multidisciplinary design optimisation procedure to address uncertainty in a structural system. However, in a general situation where some uncertain variables are not random or where complete information about their randomness is unavailable, probability theory may be inappropriate to describe the propagation of uncertainty. In this work, the Dempster-Shafer (DS) theory, also called the evidence theory, is proposed to handle this general situation as an alternative to the classical probability theory for the mathematical representation of uncertainty. Evidence theory allows us to express partial beliefs when it is impossible or impractical to assess the complete probability distribution confidently. DS theory is applied to a reliability-based optimisation problem in a general situation with imprecise information for an aircraft wing preliminary design example.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Reliability based optimisation of engineering structures under imprecise information


    Beteiligte:
    Bae, Ha-Rok (Autor:in) / Grandhi, Ramana V. (Autor:in)


    Erscheinungsdatum :

    2006


    Format / Umfang :

    15 Seiten, 12 Bilder, 2 Tabellen, 23 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Reliability-Based Design Optimization under Imprecise Uncertainty

    Bae, Ha-Rok / Grandhi, Ramana / Canfield, Robert | AIAA | 2005


    Intelligent Computation of Imprecise Information for Engineering Design

    Ullah, A.M.M. Sharif / Alawar, Ahmed / Fisher, Andrew | SAE Technical Papers | 2008


    Intelligent Computation of Imprecise Information for Engineering Design

    Ullah, A.M.M.S. / Fisher, A. / Alawar, A. et al. | British Library Conference Proceedings | 2008


    Intelligent computation of imprecise information for engineering design

    Ullah,A.M. / Fisher,A. / Alawar,A. et al. | Kraftfahrwesen | 2008


    Assessment of Imprecise Reliability Using Efficient Probabilistic Reanalysis

    Farizal / Nikolaidis, Efstratios | SAE Technical Papers | 2007