In vibration analysis, weak fault detect and diagnosis is of great importance. A method based
on minimum entropy deconvolution and envelop spectrum analysis is proposed in this …

Reciprocating compressor is one of the critical components in petrochemical, process and
gas storage/transportation industry. Due to the dynamic operating conditions, valve failures …

The airborne acoustic signals from reciprocating compressors (RC) exhibit impulsive
periodic transient response and are modulated due to several reasons, including structural …

This project assessed the behaviour of a positive displacement type of compressor utilising
airborne acoustic signatures. The study concentrated on finding an improved method based …

Wind turbine blades are one of the most critical parts of a wind turbine system. They have a
significant impact on the entire wind power system. Composite materials with polymeric …

Methods and systems for ultrasonic inspection are presented. For instance, a thin object or
an object including a thin coating may be inspected. An ultrasonic signal is transmitted to the …

With rapidly increasing demand of composite materials, the adaptable non-destructive
detection of flaws in materials and evaluation of the structure health is under urgent …

Résumé Ce travail de thèse concerne l'étude et l'implémentation des méthodes de
traitement des signaux ultrasonores basées sur la déconvolution, appliquées à la détection …

Modern industry makes extensive use of various composite materials In this paper terahertz
imaging method is proposed for evaluation of various composite materials adhesive joints …