Cargando…

The Sealing Effect Improvement Prediction of Flat Rubber Ring in Roller Bit Based on Yeoh_Revised Model

In a roller bit, the flat rubber ring (FRR) often needs to apply a certain amount of compression to ensure that its rotation and static sealing surfaces can be stably sealed. For the predicted Mises stress, values smaller than the actual Mises stress due to soft single-axis compression (SAC) stress...

Descripción completa

Detalles Bibliográficos
Autores principales: Zhou, Wei, Wang, Chengwen, Fan, Peng, Kuang, Yuchun, Dong, Zongzheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9415284/
https://www.ncbi.nlm.nih.gov/pubmed/36013664
http://dx.doi.org/10.3390/ma15165529
_version_ 1784776193559494656
author Zhou, Wei
Wang, Chengwen
Fan, Peng
Kuang, Yuchun
Dong, Zongzheng
author_facet Zhou, Wei
Wang, Chengwen
Fan, Peng
Kuang, Yuchun
Dong, Zongzheng
author_sort Zhou, Wei
collection PubMed
description In a roller bit, the flat rubber ring (FRR) often needs to apply a certain amount of compression to ensure that its rotation and static sealing surfaces can be stably sealed. For the predicted Mises stress, values smaller than the actual Mises stress due to soft single-axis compression (SAC) stress are predicted by the Yeoh (N = 3) model. To more reasonably predict stress under the static compression of the FRR in the roller bit, the sealing effect of the FRR based on the SAC contact stress and the calculated Mises stress was evaluated by the Yeoh_revised model. Based on the assumption that hydrogenated nitrile-butadiene rubber (HNBR) is isotropic and incompressible, first, we derived the fitting formulas for three types of constitutive models and the Jacobi matrix of the Yeoh_revised model and developed hyperelastic constitutive subroutines. Simultaneously, the accuracy of three models (Yeoh, Yeoh_revised and Ogden) was evaluated by the goodness of fit (R(2)) to data from three kinds of tensile experiment tests. The highest R(2) is 0.9771 with the Yeoh_revised model, which merges the advantages of the other two fitting models and effectively improves the Yeoh model’s soft property of SAC contact stress. Additionally, by measuring on-site FRR wear, the maximum Mises stress on the sealing surface calculated based on the Yeoh_revised model is about twice that of the Yeoh model, and the maximum Mises stress on the rotation contact sealing surface is higher than that on the outside (static sealing) surface, which makes the aging of the rotation surface more severe. Thus, it was demonstrated that, on the premise of ensuring FRR sealing contact stress, the Yeoh_revised model can more reasonably predict the sealing effect of the FRR to more precisely calculate Mises stress than the Yeoh model. This also contributes to FRR structure optimization to prolong the service life of the FRR in the roller bit.
format Online
Article
Text
id pubmed-9415284
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-94152842022-08-27 The Sealing Effect Improvement Prediction of Flat Rubber Ring in Roller Bit Based on Yeoh_Revised Model Zhou, Wei Wang, Chengwen Fan, Peng Kuang, Yuchun Dong, Zongzheng Materials (Basel) Article In a roller bit, the flat rubber ring (FRR) often needs to apply a certain amount of compression to ensure that its rotation and static sealing surfaces can be stably sealed. For the predicted Mises stress, values smaller than the actual Mises stress due to soft single-axis compression (SAC) stress are predicted by the Yeoh (N = 3) model. To more reasonably predict stress under the static compression of the FRR in the roller bit, the sealing effect of the FRR based on the SAC contact stress and the calculated Mises stress was evaluated by the Yeoh_revised model. Based on the assumption that hydrogenated nitrile-butadiene rubber (HNBR) is isotropic and incompressible, first, we derived the fitting formulas for three types of constitutive models and the Jacobi matrix of the Yeoh_revised model and developed hyperelastic constitutive subroutines. Simultaneously, the accuracy of three models (Yeoh, Yeoh_revised and Ogden) was evaluated by the goodness of fit (R(2)) to data from three kinds of tensile experiment tests. The highest R(2) is 0.9771 with the Yeoh_revised model, which merges the advantages of the other two fitting models and effectively improves the Yeoh model’s soft property of SAC contact stress. Additionally, by measuring on-site FRR wear, the maximum Mises stress on the sealing surface calculated based on the Yeoh_revised model is about twice that of the Yeoh model, and the maximum Mises stress on the rotation contact sealing surface is higher than that on the outside (static sealing) surface, which makes the aging of the rotation surface more severe. Thus, it was demonstrated that, on the premise of ensuring FRR sealing contact stress, the Yeoh_revised model can more reasonably predict the sealing effect of the FRR to more precisely calculate Mises stress than the Yeoh model. This also contributes to FRR structure optimization to prolong the service life of the FRR in the roller bit. MDPI 2022-08-11 /pmc/articles/PMC9415284/ /pubmed/36013664 http://dx.doi.org/10.3390/ma15165529 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhou, Wei
Wang, Chengwen
Fan, Peng
Kuang, Yuchun
Dong, Zongzheng
The Sealing Effect Improvement Prediction of Flat Rubber Ring in Roller Bit Based on Yeoh_Revised Model
title The Sealing Effect Improvement Prediction of Flat Rubber Ring in Roller Bit Based on Yeoh_Revised Model
title_full The Sealing Effect Improvement Prediction of Flat Rubber Ring in Roller Bit Based on Yeoh_Revised Model
title_fullStr The Sealing Effect Improvement Prediction of Flat Rubber Ring in Roller Bit Based on Yeoh_Revised Model
title_full_unstemmed The Sealing Effect Improvement Prediction of Flat Rubber Ring in Roller Bit Based on Yeoh_Revised Model
title_short The Sealing Effect Improvement Prediction of Flat Rubber Ring in Roller Bit Based on Yeoh_Revised Model
title_sort sealing effect improvement prediction of flat rubber ring in roller bit based on yeoh_revised model
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9415284/
https://www.ncbi.nlm.nih.gov/pubmed/36013664
http://dx.doi.org/10.3390/ma15165529
work_keys_str_mv AT zhouwei thesealingeffectimprovementpredictionofflatrubberringinrollerbitbasedonyeohrevisedmodel
AT wangchengwen thesealingeffectimprovementpredictionofflatrubberringinrollerbitbasedonyeohrevisedmodel
AT fanpeng thesealingeffectimprovementpredictionofflatrubberringinrollerbitbasedonyeohrevisedmodel
AT kuangyuchun thesealingeffectimprovementpredictionofflatrubberringinrollerbitbasedonyeohrevisedmodel
AT dongzongzheng thesealingeffectimprovementpredictionofflatrubberringinrollerbitbasedonyeohrevisedmodel
AT zhouwei sealingeffectimprovementpredictionofflatrubberringinrollerbitbasedonyeohrevisedmodel
AT wangchengwen sealingeffectimprovementpredictionofflatrubberringinrollerbitbasedonyeohrevisedmodel
AT fanpeng sealingeffectimprovementpredictionofflatrubberringinrollerbitbasedonyeohrevisedmodel
AT kuangyuchun sealingeffectimprovementpredictionofflatrubberringinrollerbitbasedonyeohrevisedmodel
AT dongzongzheng sealingeffectimprovementpredictionofflatrubberringinrollerbitbasedonyeohrevisedmodel