The Effect of Slider Configuration on Lubricant Depletion at the Slider/Disk Contact Interface
With decreasing clearance between the protrusion of a slider and a disk interface, there is a higher likelihood of contact occurring during shock or vibration experienced by hard disk drives (HDDs), which may induce lubricant depletion. Based on the molecular dynamics (MD) model of perfluoropolyethe...
| الحاوية / القاعدة: | Lubricants |
|---|---|
| المؤلفون الرئيسيون: | , , |
| التنسيق: | مقال |
| اللغة: | الإنجليزية |
| منشور في: |
MDPI AG
2024-01-01
|
| الموضوعات: | |
| الوصول للمادة أونلاين: | https://www.mdpi.com/2075-4442/12/1/17 |
| _version_ | 1849921709118849024 |
|---|---|
| author | Yuxin Chen Dongdong Zhou Zhengqiang Tang |
| author_facet | Yuxin Chen Dongdong Zhou Zhengqiang Tang |
| author_sort | Yuxin Chen |
| collection | DOAJ |
| container_title | Lubricants |
| description | With decreasing clearance between the protrusion of a slider and a disk interface, there is a higher likelihood of contact occurring during shock or vibration experienced by hard disk drives (HDDs), which may induce lubricant depletion. Based on the molecular dynamics (MD) model of perfluoropolyether lubricant with a coarse-grained beads spring approach, we compared the slider configurations’ influence on the lubricant transfer volume quantitatively. By further investigating the parameters of the cylindrical asperities, including the width and depth, as well as considering the asperity amounts of the slider, we successfully observed the lubricant depletion process during slider and disk contact. The results demonstrate that the penetration depth was reduced as the asperity amount increased, mainly owing to the increased contact area between the surfaces. The decreasing depth of the asperity and the increasing width of the asperity helped to reduce the depletion volume. In addition, the utilization of a cylindrical slider configuration can contribute to a reduction in lubricant depletion resulting from contact between the head and disk. |
| format | Article |
| id | doaj-art-2d6453568f2e4de1bbba5c8c4d012b8d |
| institution | Directory of Open Access Journals |
| issn | 2075-4442 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| spelling | doaj-art-2d6453568f2e4de1bbba5c8c4d012b8d2025-08-20T00:55:32ZengMDPI AGLubricants2075-44422024-01-011211710.3390/lubricants12010017The Effect of Slider Configuration on Lubricant Depletion at the Slider/Disk Contact InterfaceYuxin Chen0Dongdong Zhou1Zhengqiang Tang2School of Mechanical Engineering, Guizhou University, Guiyang 550025, ChinaSchool of Mechanical Engineering, Southeast University, Nanjing 211189, ChinaSchool of Mechanical Engineering, Guizhou University, Guiyang 550025, ChinaWith decreasing clearance between the protrusion of a slider and a disk interface, there is a higher likelihood of contact occurring during shock or vibration experienced by hard disk drives (HDDs), which may induce lubricant depletion. Based on the molecular dynamics (MD) model of perfluoropolyether lubricant with a coarse-grained beads spring approach, we compared the slider configurations’ influence on the lubricant transfer volume quantitatively. By further investigating the parameters of the cylindrical asperities, including the width and depth, as well as considering the asperity amounts of the slider, we successfully observed the lubricant depletion process during slider and disk contact. The results demonstrate that the penetration depth was reduced as the asperity amount increased, mainly owing to the increased contact area between the surfaces. The decreasing depth of the asperity and the increasing width of the asperity helped to reduce the depletion volume. In addition, the utilization of a cylindrical slider configuration can contribute to a reduction in lubricant depletion resulting from contact between the head and disk.https://www.mdpi.com/2075-4442/12/1/17slider disk contactlubricant depletionslider configurationMD simulation |
| spellingShingle | Yuxin Chen Dongdong Zhou Zhengqiang Tang The Effect of Slider Configuration on Lubricant Depletion at the Slider/Disk Contact Interface slider disk contact lubricant depletion slider configuration MD simulation |
| title | The Effect of Slider Configuration on Lubricant Depletion at the Slider/Disk Contact Interface |
| title_full | The Effect of Slider Configuration on Lubricant Depletion at the Slider/Disk Contact Interface |
| title_fullStr | The Effect of Slider Configuration on Lubricant Depletion at the Slider/Disk Contact Interface |
| title_full_unstemmed | The Effect of Slider Configuration on Lubricant Depletion at the Slider/Disk Contact Interface |
| title_short | The Effect of Slider Configuration on Lubricant Depletion at the Slider/Disk Contact Interface |
| title_sort | effect of slider configuration on lubricant depletion at the slider disk contact interface |
| topic | slider disk contact lubricant depletion slider configuration MD simulation |
| url | https://www.mdpi.com/2075-4442/12/1/17 |
| work_keys_str_mv | AT yuxinchen theeffectofsliderconfigurationonlubricantdepletionatthesliderdiskcontactinterface AT dongdongzhou theeffectofsliderconfigurationonlubricantdepletionatthesliderdiskcontactinterface AT zhengqiangtang theeffectofsliderconfigurationonlubricantdepletionatthesliderdiskcontactinterface AT yuxinchen effectofsliderconfigurationonlubricantdepletionatthesliderdiskcontactinterface AT dongdongzhou effectofsliderconfigurationonlubricantdepletionatthesliderdiskcontactinterface AT zhengqiangtang effectofsliderconfigurationonlubricantdepletionatthesliderdiskcontactinterface |