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Fluid Structure interaction analysis on vibrations of a rod exposed to axial flow

| 2016:238 | Kajsa Bengtsson
Vibrations in components caused by flow, so called flow induced vibrations, is an important area in many industrial fields, including the nuclear power.
fluid_structure_web.jpg
\u003Cp\u003EIn this project, a geometry equal to the neutron detection housing was studied using CFD calculations. The study shows that it is possible to simulate the flowinduced vibrations of the tube with the model that was used. The differences observed in frequency and amplitude could be explained by differences in the model and the experimental set up. The simulations seemed not to be sensitive to time step or damping, but a coarse mesh resulted in lower amplitudes compared to a finer one.\u003C/p\u003E

Rapporter och publikationer

Här listas rapporter och resultatblad från programmet.

    • Rapport

    Blade Vibrations in Turbines

    The main purpose of this Energiforsk project Blade Vibrations in Turbines is to present a clear physical description, how blade vibrations are generated and by which system parameters they are influenced.

    |2025:1037Rainer Nordmann, Technical University Darmstadt
    2025-1137 omslag.png
    • Rapport

    Cavitation induced vibrations in orifice plates and a partially closed valve

    This study aims to experimentally investigate flow-induced vibrations and cavitation in single-hole and multi-hole orifices and a partially closed Stafsjö valve. The goal is to provide experimental data for validating Computational Fluid Dynamics (CFD) models.

    |2025:1105Kristian Angele
    Bild till webben 2025-1105
    • Rapport

    Development of a Digital Twin for Torsional Vibrations of Turbogenerators, 2025:1084

    This report outlines a Digital Twin designed to monitor and evaluate these torsional vibrations, employing theoretical modeling, numerical analysis, and experimental methods for successful simulation and validation.

    |2025:1084Sven Herold, Hendrik Holzmann, Rainer Nordmann, Fraunhofer Institute Lbf Darmstadt
    Bild Till Webben 1084
    • Rapport

    DIAM – A Matrix Tool for pump vibrations

    In this research project a DIAM-Matrix tool together with a flow chart has been developed for the problem of pump vibrations.

    |2024-1051RAINER NORMANN TU DARMSTADT
    2024 1051