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Survey of Vibration Dampers

| 2020:690 | Åsa Collet and Jessica Fromell
Knowledge and practical experience on vibration dampers at the Nordic nuclear power plants has been collected here.
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The main focus is vibration dampers suitable for piping applications, where both transient and steady state vibration are common problems that may be mitigated using vibration dampers.

Comparison of different types of dampers and their functions and capabilities including their advantages and disadvantages are highlighted, but also design and maintenance issues using vibration dampers to follow the special requirements at the nuclear power plants are described.

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