Experimental research of wear-fatigue interaction of gears

Gear failures are commonly caused by wear and fatigue and past research on gear failures has primarily focused on individual failures. A gear testing machine was developed to explore the mechanism of gear wear-fatigue interaction, and four sets of wear-fatigue interaction tests were performed by cha...

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Main Authors: Kunpeng Dong, Zhili Sun, Xiandong Chai, Jian Wang
Format: Article
Language:English
Published: SAGE Publishing 2022-06-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/16878132221104957
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author Kunpeng Dong
Zhili Sun
Xiandong Chai
Jian Wang
author_facet Kunpeng Dong
Zhili Sun
Xiandong Chai
Jian Wang
author_sort Kunpeng Dong
collection DOAJ
description Gear failures are commonly caused by wear and fatigue and past research on gear failures has primarily focused on individual failures. A gear testing machine was developed to explore the mechanism of gear wear-fatigue interaction, and four sets of wear-fatigue interaction tests were performed by changing the operating conditions of the gear drive by regulating the quantity of lubricant in the test gearbox. The K-S test method was used to investigate the gear life distribution under wear-fatigue interaction. The frequency domain properties of the wear-fatigue interaction were compiled and analyzed using Fast Fourier Transform (FFT) analysis. A coordinate measuring machine was implemented to obtain the exact amount of wear at each stage of the gear test. The mechanism of gear wear-fatigue interaction was analyzed by scanning electron microscope observation of tooth surfaces. The results are as follows. The life distribution under wear-fatigue interaction obeys a log-normal distribution. With the increase of the lubrication the pitting fault occurs, the fault gear rotation frequency and its harmonic frequency appear in the low frequency region, and its amplitude increases with the increase of the pitting fault. In the high-frequency region, a sideband with the faulty gear rotation frequency as the interval appears around the meshing frequency and its two times frequency, and its amplitude increases with the increase of the pitting fault. With the decrease of lubrication, the gear wear failure increases, the amplitude of the meshing frequency and its two times frequency increases in the high frequency region. In the gear transmission process, wear and fatigue exist in a competitive relationship of mutual constraints.
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spelling doaj.art-9d2871b9139940d5875c114ba3509ab72022-12-22T03:30:03ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402022-06-011410.1177/16878132221104957Experimental research of wear-fatigue interaction of gearsKunpeng DongZhili SunXiandong ChaiJian WangGear failures are commonly caused by wear and fatigue and past research on gear failures has primarily focused on individual failures. A gear testing machine was developed to explore the mechanism of gear wear-fatigue interaction, and four sets of wear-fatigue interaction tests were performed by changing the operating conditions of the gear drive by regulating the quantity of lubricant in the test gearbox. The K-S test method was used to investigate the gear life distribution under wear-fatigue interaction. The frequency domain properties of the wear-fatigue interaction were compiled and analyzed using Fast Fourier Transform (FFT) analysis. A coordinate measuring machine was implemented to obtain the exact amount of wear at each stage of the gear test. The mechanism of gear wear-fatigue interaction was analyzed by scanning electron microscope observation of tooth surfaces. The results are as follows. The life distribution under wear-fatigue interaction obeys a log-normal distribution. With the increase of the lubrication the pitting fault occurs, the fault gear rotation frequency and its harmonic frequency appear in the low frequency region, and its amplitude increases with the increase of the pitting fault. In the high-frequency region, a sideband with the faulty gear rotation frequency as the interval appears around the meshing frequency and its two times frequency, and its amplitude increases with the increase of the pitting fault. With the decrease of lubrication, the gear wear failure increases, the amplitude of the meshing frequency and its two times frequency increases in the high frequency region. In the gear transmission process, wear and fatigue exist in a competitive relationship of mutual constraints.https://doi.org/10.1177/16878132221104957
spellingShingle Kunpeng Dong
Zhili Sun
Xiandong Chai
Jian Wang
Experimental research of wear-fatigue interaction of gears
Advances in Mechanical Engineering
title Experimental research of wear-fatigue interaction of gears
title_full Experimental research of wear-fatigue interaction of gears
title_fullStr Experimental research of wear-fatigue interaction of gears
title_full_unstemmed Experimental research of wear-fatigue interaction of gears
title_short Experimental research of wear-fatigue interaction of gears
title_sort experimental research of wear fatigue interaction of gears
url https://doi.org/10.1177/16878132221104957
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AT xiandongchai experimentalresearchofwearfatigueinteractionofgears
AT jianwang experimentalresearchofwearfatigueinteractionofgears