Linearization of friction effects in vibration of two rotating blades
This paper is aimed at modelling of friction effects in blade shrouding which are realized by means of friction elements placed between blades. In order to develop a methodology of modelling, two blades with one friction element in between are considered only. Flexible blades fixed to a rotating dis...
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University of West Bohemia
2013-06-01
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Online Access: | http://www.kme.zcu.cz/acm/index.php/acm/article/view/90/214 |
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doaj-47ef8ec3de3745a98568a15b0a4978202021-09-02T02:30:08ZengUniversity of West BohemiaApplied and Computational Mechanics1802-680X2013-06-0171522Linearization of friction effects in vibration of two rotating bladesHajžman M.Zeman V.Byrtus M.This paper is aimed at modelling of friction effects in blade shrouding which are realized by means of friction elements placed between blades. In order to develop a methodology of modelling, two blades with one friction element in between are considered only. Flexible blades fixed to a rotating disc are discretized by FEM using 1D Rayleigh beam elements derived in rotating space as well as the friction element modelled as a rigid body. The blades and the friction element are connected through two concurrent friction planes, where the friction forces arise on the basis of centrifugal force acting on the friction element. The linearization of friction is performed using the harmonic balance method to determine equivalent damping coefficients in dependence on the amplitudes of relative slip motion between the blades and the friction element. The methodology is applied to a model of two real blades and will be extended for the whole bladed disc with shrouding. http://www.kme.zcu.cz/acm/index.php/acm/article/view/90/214Bladed discFrictionHarmonic balance methodDamping |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hajžman M. Zeman V. Byrtus M. |
spellingShingle |
Hajžman M. Zeman V. Byrtus M. Linearization of friction effects in vibration of two rotating blades Applied and Computational Mechanics Bladed disc Friction Harmonic balance method Damping |
author_facet |
Hajžman M. Zeman V. Byrtus M. |
author_sort |
Hajžman M. |
title |
Linearization of friction effects in vibration of two rotating blades |
title_short |
Linearization of friction effects in vibration of two rotating blades |
title_full |
Linearization of friction effects in vibration of two rotating blades |
title_fullStr |
Linearization of friction effects in vibration of two rotating blades |
title_full_unstemmed |
Linearization of friction effects in vibration of two rotating blades |
title_sort |
linearization of friction effects in vibration of two rotating blades |
publisher |
University of West Bohemia |
series |
Applied and Computational Mechanics |
issn |
1802-680X |
publishDate |
2013-06-01 |
description |
This paper is aimed at modelling of friction effects in blade shrouding which are realized by means of friction elements placed between blades. In order to develop a methodology of modelling, two blades with one friction element in between are considered only. Flexible blades fixed to a rotating disc are discretized by FEM using 1D Rayleigh beam elements derived in rotating space as well as the friction element modelled as a rigid body. The blades and the friction element are connected through two concurrent friction planes, where the friction forces arise on the basis of centrifugal force acting on the friction element. The linearization of friction is performed using the harmonic balance method to determine equivalent damping coefficients in dependence on the amplitudes of relative slip motion between the blades and the friction element. The methodology is applied to a model of two real blades and will be extended for the whole bladed disc with shrouding. |
topic |
Bladed disc Friction Harmonic balance method Damping |
url |
http://www.kme.zcu.cz/acm/index.php/acm/article/view/90/214 |
work_keys_str_mv |
AT hajzmanm linearizationoffrictioneffectsinvibrationoftworotatingblades AT zemanv linearizationoffrictioneffectsinvibrationoftworotatingblades AT byrtusm linearizationoffrictioneffectsinvibrationoftworotatingblades |
_version_ |
1721181292391825408 |