Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6924215 | Computers & Structures | 2018 | 12 Pages |
Abstract
Geometric and material dispersions of bladed disks imply some mistuning effects, which result in both the loss of cyclic symmetry properties and a vibratory response amplification in areas of high modal density. These conditions complicate the prediction of vibratory behavior, causing high modal density and extreme sensitivity to mistuning. A non-intrusive spectral stochastic method has been developed to predict the vibratory behavior of a mistuned stator vane. To apply this method to an industrial model, a Karhunen-Loève expansion and a double modal synthesis method have been combined with the stochastic method. The complete method was first tested on a simple academic model and then on an industrial stator vane sector.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
J. Philippe, F. Thouverez, L. Blanc, M. Gruin,