Publication detail

Possibilities of the damage diagnostics of gearboxes and bearings with acoustic emissions method

MAZAL, P. NOHÁL, L. VLAŠIC, F. KOULA, V.

Original Title

Possibilities of the damage diagnostics of gearboxes and bearings with acoustic emissions method

Czech Title

Možnosti diagnostiky poškození převodovek a ložisek metodou akustické emise.

English Title

Possibilities of the damage diagnostics of gearboxes and bearings with acoustic emissions method

Type

conference paper

Language

en

Original Abstract

Experiments focused on identification of damage of bearings and automobile gearbox with usage of acoustic emission method is presented in this paper. The first group of experiments was carried out on durability test stations for radial and axial bearings. Sensing of AE signal on devices for radial bearings testing was complicated by the position of the tested bearing inside the station. As a solution, waveguides were used, with one end touching the outer ring of the bearing. Other sensors were placed on the surface of the testing station. The second group of tests consisted of measuring of signal of an intact and a damaged automotive gearbox during different functional conditions. In the gearbox the needle bearing, axial bearing and tooth wheel in fifth speed gear were artificially damaged. The goal of these experiments was to create the methodology of measurement and to compare the records of measurement of acoustic emission signal with level of vibration, noise emission and temperature. In article the first measurements that show the suitability of the chosen methodology for testing are presented.

Czech abstract

V příspěvku jsou popsány možnosti dentifikace cyklického poškození převodovky osobního automobilu a růzmých typů ložisek metodou akustické emise.

English abstract

Experiments focused on identification of damage of bearings and automobile gearbox with usage of acoustic emission method is presented in this paper. The first group of experiments was carried out on durability test stations for radial and axial bearings. Sensing of AE signal on devices for radial bearings testing was complicated by the position of the tested bearing inside the station. As a solution, waveguides were used, with one end touching the outer ring of the bearing. Other sensors were placed on the surface of the testing station. The second group of tests consisted of measuring of signal of an intact and a damaged automotive gearbox during different functional conditions. In the gearbox the needle bearing, axial bearing and tooth wheel in fifth speed gear were artificially damaged. The goal of these experiments was to create the methodology of measurement and to compare the records of measurement of acoustic emission signal with level of vibration, noise emission and temperature. In article the first measurements that show the suitability of the chosen methodology for testing are presented.

Keywords

Acoustic emission, bearing, gearbox, contact fatigue, pitting, vibration,

RIV year

2012

Released

16.04.2012

Publisher

ndt.net

Location

Durban

ISBN

978-0-620-52872-6

Book

Proceedings - 18th World Conference on Non-Destructive Testing

Edition

2012

Edition number

1

Pages from

651

Pages to

658

Pages count

8

BibTex


@inproceedings{BUT93553,
  author="Pavel {Mazal} and Libor {Nohál} and František {Vlašic} and Václav {Koula}",
  title="Possibilities of the damage diagnostics of gearboxes and bearings with acoustic emissions method",
  annote="Experiments focused on identification of damage of bearings and automobile gearbox with usage of acoustic emission method is presented in this paper. The first group of experiments was carried out on durability test
stations for radial and axial bearings. Sensing of AE signal on devices for radial bearings testing was complicated by the position of the tested bearing inside the station. As a solution, waveguides were used, with one end touching the outer ring of the bearing. Other sensors were placed on the surface of the testing station. The second group of tests consisted of measuring of signal of an intact and a damaged automotive gearbox
during different functional conditions. In the gearbox the needle bearing, axial bearing and tooth wheel in fifth speed gear were artificially damaged. The goal of these experiments was to create the methodology of
measurement and to compare the records of measurement of acoustic emission signal with level of vibration, noise emission and temperature. In article the first measurements that show the suitability of the chosen
methodology for testing are presented.",
  address="ndt.net",
  booktitle="Proceedings - 18th World Conference on Non-Destructive Testing",
  chapter="93553",
  edition="2012",
  howpublished="electronic, physical medium",
  institution="ndt.net",
  year="2012",
  month="april",
  pages="651--658",
  publisher="ndt.net",
  type="conference paper"
}