GTP-19-1459.pdf (4.08 MB)
Sensitivity and forced response analysis of anisotropy-mistuned bladed disks with nonlinear contact interfaces
journal contribution
posted on 2023-06-09, 18:49 authored by Adam Koscso, Yevgen PetrovYevgen PetrovA new method has been developed for the analysis of nonlinear forced response of bladed disks mistuned by blade anisotropy scatter and for the forced response sensitivity to blade material anisotropy orientations. The approach allows for the calculation of bladed disks with nonlinear friction contact interfaces using the multi-harmonic balance method. The method uses efficient high-accuracy model reduction method for the minimization of the computational effort while providing required accuracy. The capabilities of the developed methods are validated and demonstrated using a two-blade model. A thorough study of the influence of the material anisotropy mistuning and its sensitivity on the characteristics of the forced response is carried out using finite element modes of anisotropy mistuned realistic bladed disk with nonlinear friction joints of blade roots and shroud contacts. The dependency of the nonlinear forced response on excitation level and contact pressure values has been carried out for anisotropy mistuned bladed disks.
History
Publication status
- Published
File Version
- Accepted version
Journal
Journal of Engineering for Gas Turbines and PowerISSN
0742-4795Publisher
American Society of Mechanical EngineersExternal DOI
Issue
10Volume
141Article number
a101025Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Dynamics, Control and Vehicle Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2019-09-12First Open Access (FOA) Date
2020-09-26First Compliant Deposit (FCD) Date
2019-09-27Usage metrics
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