Robust dynamic analysis of detuned-mistuned rotating bladed disks with geometric nonlinearities
Sign Up to like & getrecommendations! Published in 2019 at "Computational Mechanics"
DOI: 10.1007/s00466-019-01790-4
Abstract: This work is devoted to the robust analysis of the effects of geometric nonlinearities on the nonlinear dynamic behavior of rotating detuned (intentionally mistuned) bladed disks in presence of unintentional mistuning (simply called mistuning). Mistuning… read more here.
Keywords: geometric nonlinearities; analysis; bladed disks; rotating bladed ... See more keywords
Vibration Prediction of Bladed Disks Coupled by Friction Joints
Sign Up to like & getrecommendations! Published in 2017 at "Archives of Computational Methods in Engineering"
DOI: 10.1007/s11831-016-9183-2
Abstract: The present review article addresses the vibration behavior of bladed disks encountered e.g. in aircraft engines as well as industrial gas and steam turbines. The utilization of the dissipative effects of dry friction in mechanical joints… read more here.
Keywords: vibration prediction; vibration; friction; bladed disks ... See more keywords
Nonlinear dynamics of mistuned bladed disks with ring dampers
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Non-linear Mechanics"
DOI: 10.1016/j.ijnonlinmec.2017.08.001
Abstract: Abstract In turbomachinery applications, rotating bladed disks (blisks) are often subject to high levels of dynamic loading, such as traveling wave excitations, which result in large response amplitudes at resonance. To prevent premature high cycle… read more here.
Keywords: ring dampers; forced responses; dynamics mistuned; mistuned bladed ... See more keywords
On the non-uniqueness of friction forces and the systematic computation of dynamic response boundaries for turbine bladed disks with contacts
Sign Up to like & getrecommendations! Published in 2021 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2021.107917
Abstract: Abstract Turbine bladed disks with friction contacts may have a large scattering of dynamic response amplitudes in laboratory conditions even for two consecutive tests. The non-repeatability of experimental studies might directly be related to a… read more here.
Keywords: dynamic response; friction; turbine bladed; bladed disks ... See more keywords
Dual-Connected Synchronized Switch Damping for Vibration Control of Bladed Disks in Aero-Engines
Sign Up to like & getrecommendations! Published in 2020 at "Applied Sciences"
DOI: 10.3390/app10041478
Abstract: An enhanced SSDI (synchronized switch damping on inductor) approach is proposed to suppress the vibration of bladed disks in aero-engines. Different from the authors’ former work (MSSP, 2017; JIMSS, 2018) where a local SSDI circuit… read more here.
Keywords: synchronized switch; dual connected; switch damping; ssdi ... See more keywords
Validation of a Modal Work Approach for Forced Response Analysis of Bladed Disks
Sign Up to like & getrecommendations! Published in 2021 at "Applied Sciences"
DOI: 10.3390/app11125437
Abstract: The paper describes a numerical method based on a modal work approach to evaluate the forced response of bladed disks and its validation against numerical results obtained by a commercial FEM code. Forcing functions caused… read more here.
Keywords: modal work; validation; work approach; forced response ... See more keywords
A Comparison between Two Reduction Strategies for Shrouded Bladed Disks
Sign Up to like & getrecommendations! Published in 2018 at "Applied Sciences"
DOI: 10.3390/app8101736
Abstract: Shrouded bladed disks exhibit a nonlinear dynamic behavior due to the contact interfaces at shrouds between neighboring blades. As a result, reduced order models (ROMs) are mandatory to compute the response levels during the design… read more here.
Keywords: strategies shrouded; reduction; two reduction; reduction strategies ... See more keywords