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 …
[HTML][HTML] The impact of fretting wear on structural dynamics: Experiment and Simulation
This paper investigates the effects of fretting wear on frictional contacts. A high frequency
friction rig is used to measure the evolution of hysteresis loops, friction coefficient and …
friction rig is used to measure the evolution of hysteresis loops, friction coefficient and …
Dynamics of dry friction damping in gas turbines: literature survey
A Rizvi, CW Smith, R Rajasekaran… - Journal of Vibration …, 2016 - journals.sagepub.com
Vibrating structures, such as gas turbine engines, are assemblages of multiple components
interfaced with each other through physical contact. The friction produced at these contact …
interfaced with each other through physical contact. The friction produced at these contact …
Traction-based multi-scale nonlinear dynamic modeling of bolted joints: Formulation, application, and trends in micro-scale interface evolution
A new framework for modeling the dynamics of bolted structures is proposed that considers
the nonlinear interfacial modeling of bolted structures using multi-scale traction-based …
the nonlinear interfacial modeling of bolted structures using multi-scale traction-based …
A micro-slip friction modeling approach and its application in underplatform damper kinematics
Underplatform dampers are widely used to dissipate vibration energy and to further prevent
high cycle fatigue in turbine blade systems. The purpose of this work is to improve the …
high cycle fatigue in turbine blade systems. The purpose of this work is to improve the …
Nonlinear dynamics of mechanical systems with friction contacts: coupled static and dynamic multi-harmonic balance method and multiple solutions
S Zucca, CM Firrone - Journal of Sound and Vibration, 2014 - Elsevier
Real applications in structural mechanics where the dynamic behavior is linear are rare.
Usually, structures are made of components assembled together by means of joints whose …
Usually, structures are made of components assembled together by means of joints whose …
On the non-uniqueness of friction forces and the systematic computation of dynamic response boundaries for turbine bladed disks with contacts
E Ferhatoglu, S Zucca - Mechanical Systems and Signal Processing, 2021 - Elsevier
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 …
amplitudes in laboratory conditions even for two consecutive tests. The non-repeatability of …
A modified IWAN model for micro-slip in the context of dampers for turbine blade dynamics
In turbine blade systems, under-platform dampers are widely used to attenuate resonant
vibrations and prevent high cycle fatigue failure depending on friction contact. To effectively …
vibrations and prevent high cycle fatigue failure depending on friction contact. To effectively …
Design of a high-precision, flat-on-flat fretting test apparatus with high temperature capability
M Lavella, D Botto, MM Gola - Wear, 2013 - Elsevier
In jet engines the blade resonant vibration amplitude is normally reduced by increasing the
structural damping by using, for example, tip shrouds. These devices dissipate the energy …
structural damping by using, for example, tip shrouds. These devices dissipate the energy …