Počet záznamů: 1  

Blades Couple Dry Friction Connection

  1. 1.
    0446392 - ÚT 2016 RIV CZ eng J - Článek v odborném periodiku
    Půst, Ladislav - Pešek, Luděk - Radolfová, Alena
    Blades Couple Dry Friction Connection.
    Applied and Computational Mechanics. Roč. 9, č. 1 (2015), s. 31-40. ISSN 1802-680X
    Institucionální podpora: RVO:61388998
    Klíčová slova: stick-slip dry friction * 3D friction characteristic * tangential contact stiffness * hysterezis loop * response curves
    Kód oboru RIV: BI - Akustika a kmity

    Vibration of blade couple damped by a dry friction contact in shroud is investigated by means of hysterezis loops and response curves analysis of blades couple. The studied system is excited by one harmonic external force in frequency range near to the lowest eigenfrequency of real blades. Blades are connected by means of damping element consisting of dry friction part linked in series with linear spring. This “stick-slip” damping element is supposed either weightless or with a very small mass modeling elastically deformed parts of contacting bodies near the friction surface. Two approximate mathematical models of “stick-slip” dry friction elements are suggested and analysed. Response curves of blades couple connected by stick-slip damping element are presented for different values of slip friction forces and two values of mass of elastically deformed parts.
    Trvalý link: http://hdl.handle.net/11104/0248483

     
     
Počet záznamů: 1  

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