| LI Ling,LI Gang-hua,LYU Gang,SHI Xiao-hui,RUAN Xiao-guang.Research on Fretting Wear Behaviour of Double Rough Surface[J],51(2):193-201 |
| Research on Fretting Wear Behaviour of Double Rough Surface |
| Received:March 08, 2021 Revised:June 09, 2021 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2022.02.018 |
| KeyWord:fretting wear rough surface surface roughness material rigidity vibration frequency |
| Author | Institution |
| LI Ling |
School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi’an , China |
| LI Gang-hua |
School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi’an , China |
| LYU Gang |
School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi’an , China |
| SHI Xiao-hui |
School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi’an , China |
| RUAN Xiao-guang |
School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi’an , China |
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| Abstract: |
| This paper is to establish a fretting wear model of rough surface in line with the actual situation to accurately reveal the wear mechanism of the connection structure. The UMESHMOTION subroutine in the ABAQUS finite element software and the energy dissipation model are used to establish a fretting wear model of rough surfaces and to explore the effects of different surface roughness, materials and vibration frequencies on the fretting wear of rough surfaces. Under the same external load, vibration frequency and material, the wear depth of the lower specimen with a surface roughness of 0.2 μm is the smallest, the wear depth of 0.8 μm is the largest, and the wear depth of 0.5 μm is between the two. When the external load, vibration frequency and surface roughness are the same, the upper specimen material of HT200 has the smallest wear depth and the alloy steel has the largest wear depth. When the external load, surface roughness and material are certain, the wear depth is the smallest when the vibration frequency is 1 Hz; when the frequency increases to 20 Hz, the wear depth reaches the maximum; when it increases to 25 Hz, the wear depth shows a decreasing trend. The results show that the rough model has a discrete contact pressure and wear depth distribution. The rough model can reflect the actual contact area of wear, making the finite element simulation of surface contact and wear more accurate. The increase in surface roughness and material rigidity caused a significant increase in the wear depth of the rough surface model, while the increase in vibration frequency causes the wear amount to increase first and then decrease, with the maximum wear amount at a frequency of 20 Hz. |
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