Modelling of bladed disk with damping effects in slip surfaces of shroud
Abstract eng: This paper is concentrated on modelling of friction effects in bladed disk of steam turbine, which are realized by means of friction elements placed between blades shroud. The purpose of these elements is to decrease potential high vibrations of bladed disk due to requirement of wide frequency operation range and due to steam flow fluctuations. The model consist of 3D modelled disk and 1D modelled blades. The stiffness coupling matrix and the damping matrix of friction elements effects are obtained by forced vibration of bladed disk, relative movement of adjacent shroud contact areas and by centrifugal forces of friction element.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Prague
Conference Title:
Conference Title:
Engineering Mechanics 2010
Conference Venue:
Svratka (CZ)
Conference Dates:
2010-05-10 / 2010-05-13
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-10-24, last modified 2014-11-18
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