Quasi-Static Sliding Wear Analysis of 3D Rough Surface Considering Changes in the Point of Contact
This study analyzed adhesive wear in periodic sliding motion using a quasi-static deterministic wear model that considered changes in the point of contact of asperities as well as changes in the surface and statistical parameters. The contact pressure was calculated using the semi-analytical method...
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| Format: | Article |
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MDPI AG
2022-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/23/12465 |
| _version_ | 1797463535873163264 |
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| author | Yunji Kim Junho Suh Bora Lee Yondo Chun Keejun Park Yonghun Yu |
| author_facet | Yunji Kim Junho Suh Bora Lee Yondo Chun Keejun Park Yonghun Yu |
| author_sort | Yunji Kim |
| collection | DOAJ |
| description | This study analyzed adhesive wear in periodic sliding motion using a quasi-static deterministic wear model that considered changes in the point of contact of asperities as well as changes in the surface and statistical parameters. The contact pressure was calculated using the semi-analytical method (SAM) based on the periodic properties of the rough surface, and the wear was analyzed by obtaining the wear depth for each node using the Archard wear model. We took into account that the sliding distances of the upper moving surface and the lower stationary surface are different according to the actual size of the two objects. We compared the results of the quasi-static wear analysis with the truncation model and the deterministic fixed model, which did not consider the change in the asperity contact point. In the truncation model, an error in the estimation of the radius occurred in the process of fitting the tip of asperities with a sphere. As the asperities became flatter by wear, this error accumulated, which revealed a difference in the deterministic wear analysis results. As a result of the wear analysis on the periodic surface, the RMS roughness of the positively skewed surface decreased the fastest, the skewness increased in the negative direction, and the kurtosis initially decreased and then increased. In addition, wear scars occurred due to the difference in wear depth between the lower stationary surface and the upper moving surface. |
| first_indexed | 2024-03-09T17:52:07Z |
| format | Article |
| id | doaj.art-35f753b495d9449bae85329a3357cebd |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T17:52:07Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-35f753b495d9449bae85329a3357cebd2023-11-24T10:36:57ZengMDPI AGApplied Sciences2076-34172022-12-0112231246510.3390/app122312465Quasi-Static Sliding Wear Analysis of 3D Rough Surface Considering Changes in the Point of ContactYunji Kim0Junho Suh1Bora Lee2Yondo Chun3Keejun Park4Yonghun Yu5LG Energy Solution, Daejeon 34122, Republic of KoreaSchool of Mechanical Engineering, Pusan National University, Busan 46241, Republic of KoreaSchool of Mechanical Engineering, Pusan National University, Busan 46241, Republic of KoreaElectric Machines and Drives System Research Center, Korea Electrotechnology Research Institute, Changwon 51543, Republic of KoreaInnovative Transportation & Logistics Research Center, Korea Railroad Research Institute, Uiwang-si 16105, Republic of KoreaInnovative Transportation & Logistics Research Center, Korea Railroad Research Institute, Uiwang-si 16105, Republic of KoreaThis study analyzed adhesive wear in periodic sliding motion using a quasi-static deterministic wear model that considered changes in the point of contact of asperities as well as changes in the surface and statistical parameters. The contact pressure was calculated using the semi-analytical method (SAM) based on the periodic properties of the rough surface, and the wear was analyzed by obtaining the wear depth for each node using the Archard wear model. We took into account that the sliding distances of the upper moving surface and the lower stationary surface are different according to the actual size of the two objects. We compared the results of the quasi-static wear analysis with the truncation model and the deterministic fixed model, which did not consider the change in the asperity contact point. In the truncation model, an error in the estimation of the radius occurred in the process of fitting the tip of asperities with a sphere. As the asperities became flatter by wear, this error accumulated, which revealed a difference in the deterministic wear analysis results. As a result of the wear analysis on the periodic surface, the RMS roughness of the positively skewed surface decreased the fastest, the skewness increased in the negative direction, and the kurtosis initially decreased and then increased. In addition, wear scars occurred due to the difference in wear depth between the lower stationary surface and the upper moving surface.https://www.mdpi.com/2076-3417/12/23/12465point of contactquasi-static deterministic wear modelSAMsliding wear |
| spellingShingle | Yunji Kim Junho Suh Bora Lee Yondo Chun Keejun Park Yonghun Yu Quasi-Static Sliding Wear Analysis of 3D Rough Surface Considering Changes in the Point of Contact Applied Sciences point of contact quasi-static deterministic wear model SAM sliding wear |
| title | Quasi-Static Sliding Wear Analysis of 3D Rough Surface Considering Changes in the Point of Contact |
| title_full | Quasi-Static Sliding Wear Analysis of 3D Rough Surface Considering Changes in the Point of Contact |
| title_fullStr | Quasi-Static Sliding Wear Analysis of 3D Rough Surface Considering Changes in the Point of Contact |
| title_full_unstemmed | Quasi-Static Sliding Wear Analysis of 3D Rough Surface Considering Changes in the Point of Contact |
| title_short | Quasi-Static Sliding Wear Analysis of 3D Rough Surface Considering Changes in the Point of Contact |
| title_sort | quasi static sliding wear analysis of 3d rough surface considering changes in the point of contact |
| topic | point of contact quasi-static deterministic wear model SAM sliding wear |
| url | https://www.mdpi.com/2076-3417/12/23/12465 |
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