Blades with damper structures have been widely used in gas and steam turbines. Operation experience indicate that damper structures can reduce the dynamic stress of the blade effectively, so it is essential to predict the oscillating characteristics of damped blade accurately. In this paper, a modified Oden friction model, which can consider the difference between static friction and dynamic friction, for analyzing nonlinear friction damping, is presented and the dynamic equations of motion of blade system is given also. The response of blade group with 5 blades is analyzed using the model presented in this paper. Factors such as the placement of connectors, external exciting force frequency, and normal pressure that influence the blade vibration characteristic are studied. Some results available for reference have been obtained.
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ASME 1997 Turbo Asia Conference
September 30–October 2, 1997
Singapore
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7867-5
PROCEEDINGS PAPER
Analysis on Response of Blades With Friction Damping Interconnection Using a New Friction Model
Zili Xu,
Zili Xu
Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
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Xinyi Li,
Xinyi Li
Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
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Qingji Meng
Qingji Meng
Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
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Zili Xu
Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
Xinyi Li
Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
Qingji Meng
Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
Paper No:
97-AA-019, V001T11A001; 5 pages
Published Online:
December 30, 2014
Citation
Xu, Z, Li, X, & Meng, Q. "Analysis on Response of Blades With Friction Damping Interconnection Using a New Friction Model." Proceedings of the ASME 1997 Turbo Asia Conference. ASME 1997 Turbo Asia Conference. Singapore. September 30–October 2, 1997. V001T11A001. ASME. https://doi.org/10.1115/97-AA-019
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