Vibration energy harvesting typically involves a mechanical oscillatory mechanism to
accumulate ambient kinetic energy, prior to the conversion to electrical energy through a …

The topic of situation awareness has received continuing interest over the last decades.
Freeze-probe methods, such as the Situation Awareness Global Assessment Technique …

This investigation is aimed to propose a vibration-driven friction-induced robot structure with
time-varying stiffness. Different from the common vibration-driven robots with force …

The nonlinear dynamics of the Mathieu equation with the inclusion of a cubic stiffness
component is considered for broadband vibration energy harvesting. The results of …

Including nonlinearity can lead to fascinating wave propagation behavior in phononic
crystals, broadening their possible applications in acoustic engineering. The current work …

In the present work, both theoretical and experimental investigation of a vertical cantilever
beam–based piezoelectric energy harvester are carried out under principal parametric …

Abstract A Nonlinear Parametrically Excited (NPE) system subjected to a harmonic base
excitation is presented. Parametric amplification, which is the process of amplifying the …

In this work, the nonlinear behaviour of a parametrically excited system with electromagnetic
excitation is accurately modelled, predicted and experimentally investigated. The equations …

The robust and reliable operation of aircraft engines is paramount. Rolling element bearings
play a major role in aircraft engines and bearing failure impacts engine health and reliability …

Parametric resonance in mechanical oscillators can onset from the periodic modulation of at
least one of the system parameters, and the behaviour of the principal (1st order) parametric …