Vibration prediction of bladed disks coupled by friction joints
The present review article addresses the vibration behavior of bladed disks encountered eg
in aircraft engines as well as industrial gas and steam turbines. The utilization of the …
in aircraft engines as well as industrial gas and steam turbines. The utilization of the …
Modelling the nonlinear behaviour of an underplatform damper test rig for turbine applications
L Pesaresi, L Salles, A Jones, JS Green… - … Systems and Signal …, 2017 - Elsevier
Underplatform dampers (UPD) are commonly used in aircraft engines to mitigate the risk of
high-cycle fatigue failure of turbine blades. The energy dissipated at the friction contact …
high-cycle fatigue failure of turbine blades. The energy dissipated at the friction contact …
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 …
Nonlinear modeling of structures with bolted joints: a comparison of two approaches based on a time-domain and frequency-domain solver
R Lacayo, L Pesaresi, J Groß, D Fochler… - … Systems and Signal …, 2019 - Elsevier
Motivated by the current demands in high-performance structural analysis, and by a need to
better model systems with localized nonlinearities, analysts have developed a number of …
better model systems with localized nonlinearities, analysts have developed a number of …
Modeling tangential friction based on contact pressure distribution for predicting dynamic responses of bolted joint structures
Subjected to dynamic excitations, bolted joint interfaces exhibit nonlinear characteristics that
significantly affect the dynamic response of assembled structures. In this paper, a novel …
significantly affect the dynamic response of assembled structures. In this paper, a novel …
Frequency response variability in friction-damped structures due to non-unique residual tractions: Obtaining conservative bounds using a nonlinear-mode-based …
Under static dry friction, the tangential friction force (residual traction) is non-unique within
the Coulomb's limits. The actual value of the residual traction depends on the load history …
the Coulomb's limits. The actual value of the residual traction depends on the load history …
[HTML][HTML] A general geometrical theory of turbine blade underplatform asymmetric dampers
MM Gola - Mechanical Systems and Signal Processing, 2023 - Elsevier
This paper presents a general geometric theory of in-plane motion of underplatform
dampers as a function of blade neck deflection and the resulting platform kinematics. In …
dampers as a function of blade neck deflection and the resulting platform kinematics. In …
Modelling friction contacts in structural dynamics and its application to turbine bladed disks
CM Firrone, S Zucca - Numerical Analysis-Theory and …, 2011 - books.google.com
Modelling the effect of friction contacts in structural dynamics (Awrejcewicz & Pyryev, 2009)
has become a major issue in the design of machines (Awrejcewicz et al, 2008a) and …
has become a major issue in the design of machines (Awrejcewicz et al, 2008a) and …
An advanced underplatform damper modelling approach based on a microslip contact model
High-cycle fatigue caused by large resonance stresses remains one of the most common
causes of turbine blade failures. Friction dampers are one of the most effective and practical …
causes of turbine blade failures. Friction dampers are one of the most effective and practical …
Nonlinear dynamic analysis of three-dimensional bladed-disks with frictional contact interfaces based on cyclic reduction strategies
In bladed disks, friction nonlinearities occurring within the contact between the blades and
disk or between the blades and underplatform dampers are used to decrease the vibratory …
disk or between the blades and underplatform dampers are used to decrease the vibratory …