Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction

Abstract The existing engineering empirical life analysis models are not capable of considering the constitutive behavior of materials under contact loads; as a consequence, these methods may not be accurate to predict fatigue lives of rolling bearings. In addition, the contact stress of bearing in...

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Autores principales:	Aodi Yu, Hong-Zhong Huang, Yan-Feng Li, He Li, Ying Zeng
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Rolling bearings Fatigue life prediction Modified SWT model Mean stress correction Ocean engineering TC1501-1800 Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/f059d3e16f374a0bbb151c0309cd15a3
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spelling	oai:doaj.org-article:f059d3e16f374a0bbb151c0309cd15a32021-11-21T12:02:37ZFatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction10.1186/s10033-021-00625-91000-93452192-8258https://doaj.org/article/f059d3e16f374a0bbb151c0309cd15a32021-11-01T00:00:00Zhttps://doi.org/10.1186/s10033-021-00625-9https://doaj.org/toc/1000-9345https://doaj.org/toc/2192-8258Abstract The existing engineering empirical life analysis models are not capable of considering the constitutive behavior of materials under contact loads; as a consequence, these methods may not be accurate to predict fatigue lives of rolling bearings. In addition, the contact stress of bearing in operation is cyclically pulsating, it also means that the bearing undergo non-symmetrical fatigue loadings. Since the mean stress has great effects on fatigue life, in this work, a novel fatigue life prediction model based on the modified SWT mean stress correction is proposed as a basis of which to estimate the fatigue life of rolling bearings, in which, takes sensitivity of materials and mean stress into account. A compensation factor is introduced to overcome the inaccurate predictions resulted from the Smith, Watson, and Topper (SWT) model that considers the mean stress effect and sensitivity while assuming the sensitivity coefficient of all materials to be 0.5. Moreover, the validation of the model is finalized by several practical experimental data and the comparison to the conventional SWT model. The results show the better performance of the proposed model, especially in the accuracy than the existing SWT model. This research will shed light on a new direction for predicting the fatigue life of rolling bearings.Aodi YuHong-Zhong HuangYan-Feng LiHe LiYing ZengSpringerOpenarticleRolling bearingsFatigue life predictionModified SWT modelMean stress correctionOcean engineeringTC1501-1800Mechanical engineering and machineryTJ1-1570ENChinese Journal of Mechanical Engineering, Vol 34, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Rolling bearings Fatigue life prediction Modified SWT model Mean stress correction Ocean engineering TC1501-1800 Mechanical engineering and machinery TJ1-1570
spellingShingle	Rolling bearings Fatigue life prediction Modified SWT model Mean stress correction Ocean engineering TC1501-1800 Mechanical engineering and machinery TJ1-1570 Aodi Yu Hong-Zhong Huang Yan-Feng Li He Li Ying Zeng Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction
description	Abstract The existing engineering empirical life analysis models are not capable of considering the constitutive behavior of materials under contact loads; as a consequence, these methods may not be accurate to predict fatigue lives of rolling bearings. In addition, the contact stress of bearing in operation is cyclically pulsating, it also means that the bearing undergo non-symmetrical fatigue loadings. Since the mean stress has great effects on fatigue life, in this work, a novel fatigue life prediction model based on the modified SWT mean stress correction is proposed as a basis of which to estimate the fatigue life of rolling bearings, in which, takes sensitivity of materials and mean stress into account. A compensation factor is introduced to overcome the inaccurate predictions resulted from the Smith, Watson, and Topper (SWT) model that considers the mean stress effect and sensitivity while assuming the sensitivity coefficient of all materials to be 0.5. Moreover, the validation of the model is finalized by several practical experimental data and the comparison to the conventional SWT model. The results show the better performance of the proposed model, especially in the accuracy than the existing SWT model. This research will shed light on a new direction for predicting the fatigue life of rolling bearings.
format	article
author	Aodi Yu Hong-Zhong Huang Yan-Feng Li He Li Ying Zeng
author_facet	Aodi Yu Hong-Zhong Huang Yan-Feng Li He Li Ying Zeng
author_sort	Aodi Yu
title	Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction
title_short	Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction
title_full	Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction
title_fullStr	Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction
title_full_unstemmed	Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction
title_sort	fatigue life prediction of rolling bearings based on modified swt mean stress correction
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/f059d3e16f374a0bbb151c0309cd15a3
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Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction

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