Envelope Detection and Cepstrum Analysis for Gear Fault Diagnosis - A Comparative Study

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Envelope Detection and Cepstrum Analysis for Gear Fault Diagnosis - A Comparative Study

Popis výsledku v původním jazyce

While operating a gear with local fault impulse is created, the high-frequency shock vibration is then generated and the vibration amplitude is modulated by the pulse force. Both the envelope and cepstrum analyses are useful tools to identify the fault frequencies and distinguish them from other frequency contents. Since the envelope analysis method provides an important and effective approach to analyse the fault signals of high-frequency impact vibration, it has been applied to the roller bearing fault diagnosis successfully. The intent of this article is to introduce these two tools and compare them between in a pragmatic way and to demonstrate their properties by using practical example of a gear fault. All the experimental data are acquired from vehicle gearbox which is tested on the laboratory stand equipped with three dynamometers; the input dynamometer serves as internal combustion engine, the output dynamometers introduce the load on the flanges of output joint shafts. The pitting defect is manufactured on one tooth of pinion gear on the output shaft. The results obtained from practical experiments prove that Cepstrum analysis provides a clear indication of fault for machine parts such as vehicle gearbox in addition to evaluate the efficiency of the common envelope analysis.

Název v anglickém jazyce

Envelope Detection and Cepstrum Analysis for Gear Fault Diagnosis - A Comparative Study

Popis výsledku anglicky

While operating a gear with local fault impulse is created, the high-frequency shock vibration is then generated and the vibration amplitude is modulated by the pulse force. Both the envelope and cepstrum analyses are useful tools to identify the fault frequencies and distinguish them from other frequency contents. Since the envelope analysis method provides an important and effective approach to analyse the fault signals of high-frequency impact vibration, it has been applied to the roller bearing fault diagnosis successfully. The intent of this article is to introduce these two tools and compare them between in a pragmatic way and to demonstrate their properties by using practical example of a gear fault. All the experimental data are acquired from vehicle gearbox which is tested on the laboratory stand equipped with three dynamometers; the input dynamometer serves as internal combustion engine, the output dynamometers introduce the load on the flanges of output joint shafts. The pitting defect is manufactured on one tooth of pinion gear on the output shaft. The results obtained from practical experiments prove that Cepstrum analysis provides a clear indication of fault for machine parts such as vehicle gearbox in addition to evaluate the efficiency of the common envelope analysis.

Druh

D - Stať ve sborníku

CEP obor

JO - Pozemní dopravní systémy a zařízení

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Název statě ve sborníku

Proceedings of the 10th International Conference on Measurement

ISBN

978-80-969672-9-2

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

187-190

Název nakladatele

VEDA

Místo vydání

Bratislava

Místo konání akce

Smolenice

Datum konání akce

25. 5. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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