Detuning impact of couple of blades with friction element on bending oscillation

Title:

Detuning impact of couple of blades with friction element on bending oscillation

Creator:

Brůha, Jan and Zeman, Vladimír

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:0e434e5f-827a-4722-a3e3-c24f94e1f242
uuid:0e434e5f-827a-4722-a3e3-c24f94e1f242

Subject:

blade oscillation, dry friction, numerical simulation, and equivalent linearization method

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

This presented work is concerned with a friction element impact and detuning mass impact of the bending oscillation of a couple of blades with a friction element embodied between the blade shrouds. Either of the blades is discretized by FEM using beam elements and continuously distributed weight is concentraed in nodal points. One of the blades is excited by harmonic varying force. The friction element, which is considered as a rigid body, is pulled using constant tension force into a wedge gap between the blade shrouds. The detuning of this system is caused by an additional mass mounting on one of the blade shrouds. Numerical simulation results are compared with results of the equivalent linearization method. The effects of the friction and detuning on the blades vibration suppression are analyzed. and Obsahuje seznam literatury

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

237-248

Source:

Engineering mechanics: international journal for theoretical and applied mechanics | 2011 Volume:18 | Number:3-4

Harvested from:

CDK

Metadata only:

false