Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the ASME Turbo Expo 2006 - Power for Land, Sea, and Air |
| Pages | 841-853 |
| Number of pages | 13 |
| Publication status | E-pub ahead of print - 19 Sept 2008 |
| Event | 2006 ASME 51st Turbo Expo - Barcelona, Spain Duration: 6 May 2006 → 11 May 2006 |
Publication series
| Name | Proceedings of the ASME Turbo Expo |
|---|---|
| Volume | 5 PART B |
Abstract
Forced vibrations can lead to a substantial damage of the blading. To reduce the vibrational amplitudes to reasonable magnitudes, several coupling concepts, like shroud coupling or underplatform dampers, have been developed in the past. Mechanical models for the analysis of the forced response of coupled turbine blading are available. These models include an appropriate contact model to account for the contact, effects like frictional damping, for example. These contact models demand for a stiffness type parameter, this is the so-called contact, stiffness. Unfortunately, there is no straight-forward way for the determination of this parameter. In this paper, simple mechanical models are used for the estimation of the contact stiffness. The estimated contact stiffnesses are then used in forced response computations. The results of these computations are compared to measurements in order to find the most appropriate method for the contact stiffness estimation.
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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Proceedings of the ASME Turbo Expo 2006 - Power for Land, Sea, and Air. 2008. p. 841-853 (Proceedings of the ASME Turbo Expo; Vol. 5 PART B).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - The estimation of the contact stiffness for directly and indirectly coupled turbine blading
AU - Siewert, Christian
AU - Panning, Lars
AU - Schmidt-Fellner, Annika
AU - Kayser, Andreas
PY - 2008/9/19
Y1 - 2008/9/19
N2 - Forced vibrations can lead to a substantial damage of the blading. To reduce the vibrational amplitudes to reasonable magnitudes, several coupling concepts, like shroud coupling or underplatform dampers, have been developed in the past. Mechanical models for the analysis of the forced response of coupled turbine blading are available. These models include an appropriate contact model to account for the contact, effects like frictional damping, for example. These contact models demand for a stiffness type parameter, this is the so-called contact, stiffness. Unfortunately, there is no straight-forward way for the determination of this parameter. In this paper, simple mechanical models are used for the estimation of the contact stiffness. The estimated contact stiffnesses are then used in forced response computations. The results of these computations are compared to measurements in order to find the most appropriate method for the contact stiffness estimation.
AB - Forced vibrations can lead to a substantial damage of the blading. To reduce the vibrational amplitudes to reasonable magnitudes, several coupling concepts, like shroud coupling or underplatform dampers, have been developed in the past. Mechanical models for the analysis of the forced response of coupled turbine blading are available. These models include an appropriate contact model to account for the contact, effects like frictional damping, for example. These contact models demand for a stiffness type parameter, this is the so-called contact, stiffness. Unfortunately, there is no straight-forward way for the determination of this parameter. In this paper, simple mechanical models are used for the estimation of the contact stiffness. The estimated contact stiffnesses are then used in forced response computations. The results of these computations are compared to measurements in order to find the most appropriate method for the contact stiffness estimation.
UR - http://www.scopus.com/inward/record.url?scp=33750827775&partnerID=8YFLogxK
U2 - 10.1115/GT2006-90473
DO - 10.1115/GT2006-90473
M3 - Conference contribution
AN - SCOPUS:33750827775
SN - 0791842401
SN - 9780791842409
T3 - Proceedings of the ASME Turbo Expo
SP - 841
EP - 853
BT - Proceedings of the ASME Turbo Expo 2006 - Power for Land, Sea, and Air
T2 - 2006 ASME 51st Turbo Expo
Y2 - 6 May 2006 through 11 May 2006
ER -