✦ LIBER ✦

APPLICATION OF WAVELETS TO GEARBOX VIBRATION SIGNALS FOR FAULT DETECTION

✍ Scribed by W.J. Wang; P.D. McFadden

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 554 KB
Volume: 192
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.1996.0226

No coin nor oath required. For personal study only.

✦ Synopsis

The wavelet transform is used to represent all possible types of transients in vibration signals generated by faults in a gearbox. It is shown that the transform provides a powerful tool for condition monitoring and fault diagnosis. The vibration signal from a helicopter gearbox is used to demonstrate the application of the suggested wavelet by a simple computer algorithm. The major advantage of the wavelet transform for analyzing the signal is that it possesses multi-resolutions for localizing short-time components so that all possible types of gear faults can be displayed by a single time-scale distribution resulting from the transform.

📜 SIMILAR VOLUMES

Application of the wavelet transform to

Application of the wavelet transform to fault detection in a spur gear

✍ W.J. Staszewski; G.R. Tomlinson 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 756 KB

APPLICATION OF WAVELET PACKET ANALYSIS F

APPLICATION OF WAVELET PACKET ANALYSIS FOR FAULT DETECTION IN ELECTRO-MECHANICAL SYSTEMS BASED ON TORSIONAL VIBRATION MEASUREMENT

✍ X. LI; L. QU; G. WEN; C. LI 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 555 KB

This paper primarily focuses on detecting electrical faults in turbine generator sets by monitoring torsional vibrations with the help of the non-contact measurement technique and analysing the data acquired from torsional vibration meter. Torsional vibrations in shaft trains can be excited by perio

THE ENHANCEMENT OF IMPULSIVE NOISE AND V

THE ENHANCEMENT OF IMPULSIVE NOISE AND VIBRATION SIGNALS FOR FAULT DETECTION IN ROTATING AND RECIPROCATING MACHINERY

✍ S.K. Lee; P.R. White 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 616 KB

Impulsive sound and vibration signals in machinery are often caused by the impacting of components and are commonly associated with faults. It has long been recognized that these signals can be gainfully used for fault detection. However, it tends to be difficult to make objective measurements of im

Application of WET sequence for the dete

Application of WET sequence for the detection of the ligand signals resonating close to water

✍ Kazuo Furihata; Sakurako Shimotakahara; Yoichi Shibusawa; Mitsuru Tashiro 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 257 KB

## Abstract An efficient pulse sequence for observing the ligand signals resonating close to the water signal has been developed by incorporating the WET technique into the saturation transfer difference pulse sequence. Although several pulse sequences have been developed for observing a ligand bin

USE OF NON-DEGENERACY IN NOMINALLY AXISY

USE OF NON-DEGENERACY IN NOMINALLY AXISYMMETRIC STRUCTURES FOR FAULT DETECTION WITH APPLICATION TO CYLINDRICAL GEOMETRIES

✍ T.J. ROYSTON; T. SPOHNHOLTZ; W.A. ELLINGSON 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 315 KB

A novel technique is proposed for the detection of localized #aws in otherwise axisymmetric structures. The technique is based on the split-mode phenomena that occurs when the degenerate vibratory modes of the axisymmetric structure become non-degenerate due to the #aw with altered mode shapes and s