Importance of Acoustic Emission Method in Evaluation of Durability of Rolling Contact

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU110744" target="_blank" >RIV/00216305:26210/14:PU110744 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Importance of Acoustic Emission Method in Evaluation of Durability of Rolling Contact

Original language description

Rolling-element bearings are reliable and widely used mechanical components whose life is in the case of correct operating conditions and compliance with the mounting procedures limited only by rolling contact fatigue. In the final stage, the rolling contact fatigue on surface of bearing race resulted in formation of pitting or spalling. This is influenced by many factors: homogeneity and structure of the material, lubricant properties, contact pressure, surface quality, etc. Conducting an endurance test series on full-scale bearings is expensive because numerous test specimens are required to obtain useful experimental life estimation. The flat washer tests allow obtaining in a short time and cheaper the information about durability of material under testing. The life of tested material is commonly determined by vibrodiagnostics. However this method detects only final stage of rolling contact fatigue – pitting and processes during the test are not adequately described. This paper deals with the processes before the onset of the final damage on the surface of the specimen during testing under different conditions (material and lubricant properties) using acoustic emission method. It can be concluded that method of acoustic emission is able to describe changes during rolling contact tests better than vibrodiagnostics and temperature monitoring.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

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Project

<a href="/en/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

XIth European conference on NDT

ISBN

978-80-214-5018-9

ISSN

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e-ISSN

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Number of pages

5

Pages from-to

1-5

Publisher name

VUT v Brně

Place of publication

Brno

Event location

Praha

Event date

Oct 6, 2014

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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