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Inertial Sensor-Based State Estimation of Flexible Links Subject to Bending and Torsion

    Tutkimustuotos: KonferenssiartikkeliTieteellinenvertaisarvioitu

    1 Sitaatiot (Scopus)
    45 Lataukset (Pure)

    Abstrakti

    In this study, we propose an observer design based on inertial sensors and the finite element (FE) method to estimate the flexural states of a long-reach and highly flexible manipulator in a 3D plane of motion. Vertical and lateral dynamic bendings are considered, along with deformation due to torsion. The aim is to achieve accurate end-point positioning by using the estimated flexural degrees-of-freedom, which are formulated using an FE model. The states are reconstructed based on angular velocity measurements, which are obtained from strap-on inertial sensors placed along the flexible link. For validation, a motion-capture setup consisting of three OptiTrack cameras is used. The experiments are conducted on a hydraulic manipulator that has a single 4.5-m long flexible link with a tip mass. The validation is carried out by comparing the estimates to the OptiTrack reference measurements. The results demonstrate that this method provides satisfactory end-point positioning, while also being convenient for use in heavy-duty mobile manipulators.

    AlkuperäiskieliEnglanti
    Otsikko2018 14th IEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications, MESA 2018
    KustantajaIEEE
    Sivumäärä8
    ISBN (painettu)9781538646434
    DOI - pysyväislinkit
    TilaJulkaistu - 27 elok. 2018
    OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
    TapahtumaIEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications - Oulu, Suomi
    Kesto: 2 heinäk. 20184 heinäk. 2018

    Conference

    ConferenceIEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications
    Maa/AlueSuomi
    KaupunkiOulu
    Ajanjakso2/07/184/07/18

    Rahoitus

    This work was supported by the Academy of Finland under the project “CPS-based supervision and control of flexible link manipulators,” grant no. 294915.

    Julkaisufoorumi-taso

    • Jufo-taso 1

    !!ASJC Scopus subject areas

    • Control and Optimization
    • Computer Science Applications
    • Electrical and Electronic Engineering
    • Mechanical Engineering
    • Instrumentation

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