Dynamic modeling and projection-based reduction methods for bladed disks with nonlinear frictional and intermittent contact interfaces
M Mitra, BI Epureanu - Applied Mechanics Reviews, 2019 - asmedigitalcollection.asme.org
Turbine bladed disks or blisks, which constitute critical components of most modern
turbomachinery, are known for their complex vibratory behavior. The nonlinear dynamics …
turbomachinery, are known for their complex vibratory behavior. The nonlinear dynamics …
Application of extremum response surface method-based improved substructure component modal synthesis in mistuned turbine bladed disk
B Bai, H Li, W Zhang, Y Cui - Journal of Sound and Vibration, 2020 - Elsevier
To improve the computational efficiency of vibration characteristics and reliability analysis for
a detailed numerical model of the mistuned turbine bladed disk, a new methodology called …
a detailed numerical model of the mistuned turbine bladed disk, a new methodology called …
Development of a fully-coupled harmonic balance method and a refined energy method for the computation of flutter-induced Limit Cycle Oscillations of bladed disks …
Flutter stability is a dominant design constraint of modern gas and steam turbines. To further
increase the feasible design space, flutter-tolerant designs are currently explored, which …
increase the feasible design space, flutter-tolerant designs are currently explored, which …
Mistuned higher-order mode forced response of an embedded compressor rotor—part II: Mistuned forced response prediction
This paper is the second part of a two-part paper that presents a comprehensive study of the
higher-order mode (HOM) mistuned forced response of an embedded rotor blisk in a …
higher-order mode (HOM) mistuned forced response of an embedded rotor blisk in a …
Experimental and Computational Study of a Rotating Bladed Disk with Under-Platform Dampers
There has been an extensive amount of work developing reduced-order models (ROMs) for
bladed disks using single-sector models and a cyclic analysis. Several ROMs currently exist …
bladed disks using single-sector models and a cyclic analysis. Several ROMs currently exist …
A new experimental facility for characterizing bladed disk dynamics at design speed
An experimental facility for structural dynamics programs that uses an above-ground
containment tank specifically designed to house bladed disks operating at design speed is …
containment tank specifically designed to house bladed disks operating at design speed is …
Parametric reduced order models for bladed disks with mistuning and varying operational speed
A considerable amount of research has been conducted to develop reduced order models
(ROMs) of bladed disks that can be constructed using single sector calculations when there …
(ROMs) of bladed disks that can be constructed using single sector calculations when there …
Multistage blisk and large mistuning modeling using fourier constraint modes and PRIME
Current efforts to model multistage turbomachinery systems rely on calculating independent
constraint modes for each degree-of-freedom (DOF) on the boundary between stages. While …
constraint modes for each degree-of-freedom (DOF) on the boundary between stages. While …
A statistical characterization of the effects and interactions of small and large mistuning on multistage bladed disks
As turbomachinery systems continue to push the limits of modern technology, the modeling
techniques being developed also continue to push modern computational limits. While …
techniques being developed also continue to push modern computational limits. While …
Analysis of friction-saturated flutter vibrations with a fully coupled frequency domain method
C Berthold, J Gross, C Frey… - … of Engineering for …, 2020 - asmedigitalcollection.asme.org
Flutter stability is a dominant design constraint of modern turbines. Thus, flutter-tolerant
designs are currently explored, where the resulting vibrations remain within acceptable …
designs are currently explored, where the resulting vibrations remain within acceptable …