Naslov
Gear Tooth Root Fatigue Assessments by Estimating the Real Stress Cycle

Autori
Jelaska, Damir ; Podrug, Srđan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
ASME Proceedings | 10th ASME International Power Transmission and Gearing Conference / - Las Vegas (NV) : American Society of Mechanical Engineers (ASME), 2007, 887-894

ISBN
0-7918-4808-6

Skup
ASME 2007 International Design Engineering Tehnical Conferences & Computers and Information in Engineering Conference (IDETC/CIE 2007)

Mjesto i datum
Las Vegas (NV), Sjedinjene Američke Države, 04.09.2007. - 07.09.2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
moving load ; gear ; crack path ; crack initiation ; crack propagation

Sažetak
A several kinds of numerical models, including moving force model, for determination the service life of gears in regard to bending fatigue in a gear tooth root, is presented. Finite element method and linear elastic fracture mechanics theories are then used for the further simulation of the fatigue crack growth under a moving load. Moving load produces a non-proportional load history in a gear's tooth root. The corresponding stress cycle is obtained which enables more precise computing. An approach that accounts for fatigue crack closure effects is developed to propagate crack under non-proportional load. The computational results are compared with other researchers’ numerical results and with service lives of real gears. The fatigue lives and crack paths determined in this paper exhibits a substantial agreement with experimental results and significant improvement compared with the existing numerical models.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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