Order tracking (OT), which is realized by signal sampling in equal-angle increment
according to the measured rotating speed, is a powerful technique for rotating machine fault …

Abstract Condition Monitoring System (CMS) substantiates potential economic benefits and
enables prognostic maintenance in wind turbine-generator failure prevention. Vibration …

Parameter-adaptive variational mode decomposition (VMD) has attenuated the dominant
effect of prior parameters, especially the predefined mode number and balancing parameter …

The main purpose of this paper is to represent a methodenabling vibration components to
be extracted from a high-resolution Short-Time Fourier-Transformation (STFT) based …

Instantaneous angular frequency (IAF) is an inherent characteristic associated with
mechanical dynamics and contains adequate diagnostic information about rotating …

Time-frequency analysis (TFA) technique is an effective approach to capture the changing
dynamic in a nonstationary signal. However, the commonly adopted TFA techniques are …

Vibration monitoring is one of the most popular, effective, and reliable methods for bearing
fault diagnosis. A key issue in the vibration monitoring for the bearings used in variable …

The aim of this work is to propose a novel approach for the estimation of the Instantaneous
Angular Speed (IAS) of rotating machines from vibration measurements. This work is …

Non-stationary vibration signals of a gearbox under varying speed display complicated
modulations, which lead to intense sidebands thereby resulting in difficulty to identify the …

In this paper, a systematic framework is established for health assessment of rotating
machinery using a rotary encoder. In this framework, spectral quadratic weighting is first …