Experimental and numerical study of gear faults in gearbox: Evaluation of dynamic stress fluctuations

被引：0

作者：

Mahfoudh, J ^{[1
]}

Bard, C ^{[1
]}

Beigneux, C ^{[1
]}

Play, D ^{[1
]}

机构：

[1] Inst Natl Sci Appl Lyon, Lab Concept & Anal Syst Mecan, F-69621 Villeurbanne, France

来源：

CRITICAL LINK: DIAGNOSIS TO PROGNOSIS | 1997年

关键词：

condition monitoring; diagnostics; dynamic stress; gears; maintenance; numerical simulation; vibration analysis;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Several studies were made on the effects of gear faults on vibrations and noise. Fault signatures were defined and procedures for fault detection were proposed. Now, the question is to define fault thresholds. As an experimental determination does not appear simple, thresholds can be defined by comparing the dynamic tooth root stress due to a fault to a fatigue limit of the gear material and by relating the type and the depth of the fault to the vibration levels and tooth root stress increase. The experimental study of the gear fault effect on bearing vibrations enables us to define descriptors which indicate the presence of fault and its nature, the experimental study will be shortly summed up, then a numerical model will be developed involving validation with respect to previous experimental studies. The dynamic tooth load and tooth root stress with and without fault will be presented and the risks of tooth failure due to stress fluctuations were discussed.

引用

页码：773 / 781

页数：9