In a standard design practice, it is often necessary to assemble engineered structures from
individually manufactured parts. Ideally, the assembled system should perform as if the …

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 …

This paper presents a comprehensive review of recent advancements in modelling
approaches, design strategies, and testing techniques applied to friction damping in …

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 …

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 …

In this work, we show that a recently proposed method for experimental nonlinear modal
analysis based on the extended periodic motion concept is well suited to extract modal …

Many engineering structures are composed of weakly coupled sectors assembled in a cyclic
and ideally symmetric configuration, which can be simplified as forced Duffing oscillators. In …

Friction-induced vibrations are known to affect many engineering applications. Here, we
study a chain of friction-excited oscillators with nearest neighbor elastic coupling. The …

Accurate prediction of the vibration response of aircraft engine assemblies is of great
importance when estimating both the performance and the lifetime of their individual …

This paper presents a method for detection and characterisation of structural non-linearities
from a single frequency response function using the Hilbert transform in the frequency …