Počet záznamů: 1

Non-proportional nonlinear damping in experimental bladed disk

  1. 1.
    0351996 - UT-L 2011 RIV CZ eng J - Článek v odborném periodiku
    Půst, Ladislav - Pešek, Luděk
    Non-proportional nonlinear damping in experimental bladed disk.
    Engineering Mechanics. Roč. 17, 3/4 (2010), s. 237-250 ISSN 1802-1484
    Grant CEP: GA ČR GA101/09/1166
    Výzkumný záměr: CEZ:AV0Z20760514
    Klíčová slova: bladed disk vibrations * dry friction damping * imperfection
    Kód oboru RIV: BI - Akustika a kmity

    Paper is concerned with the flexural vibrations of imperfect bladed circular disk by analytical and numerical solutions. Disk imperfection results from additional two groups of damping heads fixed on opposite ends of one diameter, which introduces point imperfections in mass, stiffness and nonlinear damping and non-proportional distribution of damping properties. The aim of this study is to investigate influence of friction damping among added bladed heads on decrease of resonance amplitudes. Examples based on application of equivalent linearized damping show the properties of such dampers.
    Trvalý link: http://hdl.handle.net/11104/0191611