Number of the records: 1
Experimental and numerical investigation of friction element dissipative effects in blade shrouding
- 1.0441512 - ÚT 2015 RIV NL eng J - Journal Article
Pešek, Luděk - Hajžman, M. - Půst, Ladislav - Zeman, V. - Byrtus, M. - Brůha, J.
Experimental and numerical investigation of friction element dissipative effects in blade shrouding.
Nonlinear Dynamics. Roč. 79, č. 3 (2015), s. 1711-1726. ISSN 0924-090X. E-ISSN 1573-269X
R&D Projects: GA ČR GA101/09/1166
Institutional support: RVO:61388998
Keywords : turbine blades * contact * friction * finite element method
Subject RIV: BI - Acoustics
Impact factor: 3.000, year: 2015
http://link.springer.com/article/10.1007%2Fs11071-014-1769-3
The reduction of undesirable vibrations of turbine blades damped by the inserted friction elements in the shroud has been investigated. The interaction of the friction elements and blades was described by normal contact and tangential friction forces. Mathematical blade models were based on the finite element method. The dry friction forces were modeled by the modified Coulomb law. The numerical results showed the satisfactory agreement with the experiment.
Permanent Link: http://hdl.handle.net/11104/0244662
Number of the records: 1