Numerical analysis of dry friction damping effect of tie-boss couplings on three blade bundle

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F17%3A00479401" target="_blank" >RIV/61388998:_____/17:00479401 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1115/DETC2017-67118" target="_blank" >http://dx.doi.org/10.1115/DETC2017-67118</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/DETC2017-67118" target="_blank" >10.1115/DETC2017-67118</a>

Result language
angličtina
Original language name
Numerical analysis of dry friction damping effect of tie-boss couplings on three blade bundle
Original language description
This contribution deals with a design of bladed whel model with tie-boss couplings for numerical and experimental dynamic analysis. Besides modal analysis of the linearized wheel model a non-linear dynamical response of the three blade bundle with friction couplings in the tie-bosses were computed for description of a friction damping. Three-dimensional FE model with friction contacts was developed in the program ANSYS 15.0. The Augmented Lagrangian method was used to compute contact normal pressures and friction stresses. The friction coupling ws modeled by the Isotropic Coulomb´s law. For a description of the friction coefficient, its dependence on relative velocity was considered. The damping ratio of the friction damping was evaluated from the envelope of free vibration attenuations after short harmonic excitation. The first experimental results for validation of the numerical model are discussed at the end.n
Czech name
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Czech description
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Project
<a href="/en/project/GA16-04546S" target="_blank" >GA16-04546S: Aero-elastic couplings and dynamic behaviour of rotational periodic bodies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the ASME Design Engineering Technical Conference
ISBN
978-07-918-5822-6
ISSN
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e-ISSN
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Number of pages
7
Pages from-to
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Publisher name
American Society of Mechanical Engineers (ASME)
Place of publication
Washington
Event location
Cleveland, Ohio
Event date
Aug 6, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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