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EXPERIMENTAL ANALYSIS OF BLADED WHEEL MODEL WITH TIE-BOSS COUPLINGS – STEADY AND ROTATIONAL STATES

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    0497774 - ÚT 2019 RIV CZ eng C - Conference Paper (international conference)
    Pešek, Luděk - Bula, Vítězslav - Šnábl, Pavel - Cibulka, Jan
    EXPERIMENTAL ANALYSIS OF BLADED WHEEL MODEL WITH TIE-BOSS COUPLINGS – STEADY AND ROTATIONAL STATES.
    DYMAMESI 2018 - Proceedings. Prague: Institute of Thermomechanics AS CR, v. v. i., 2018 - (Zolotarev, I.; Pešek, L.; Kozieň, M.), s. 47-50. ISBN 978-80-87012-66-6.
    [DYMAMESI 2018 - Dynamics of Machines and Mechanical Systems with Interactions. Prague (CZ), 06.03.2018-07.03.2018]
    R&D Projects: GA ČR GA16-04546S
    Institutional support: RVO:61388998
    Keywords : turbine blade * coupling * dry-friction
    OECD category: Applied mechanics

    Experimental modal analysis of the proposed model of bladed wheel with tie-boss couplings was performed for validation of thenumerical FE model. The pre-stresses in contacts were set and evaluated indirectly by the magnetic torque sensor. Then dynamical tests of bladed wheel under revolutions were performed. The
    electromagnetic synchronized pulses were used for excitation of forced vibration of the wheel. The Campbell diagram of the wheel with prestressedcontacts was created from the measurement under revolutions. From the attenuation of resonant vibration of the wheel the dampingwas evaluated.
    Permanent Link: http://hdl.handle.net/11104/0291278

     
     
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