Active control of Lubricant Flow Using Dielectrophoresis and Its Effect on Friction Reduction
With the increasing demand for active friction control, we newly proposed to use dielectrophoresis to change the flow of PG-droplet-containing PAO4 to reduce the friction coefficient. The friction result with a 1-mm roller shows 20% reduction in friction coefficient (from 0.065 to 0.052) at AC 100 V...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Japanese Society of Tribologists
2023-10-01
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| Series: | Tribology Online |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/trol/18/6/18_292/_pdf/-char/en |
| _version_ | 1797375023518842880 |
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| author | Motoyuki Murashima Kazuma Aono Noritsugu Umehara Takayuki Tokoroyama Woo-Young Lee |
| author_facet | Motoyuki Murashima Kazuma Aono Noritsugu Umehara Takayuki Tokoroyama Woo-Young Lee |
| author_sort | Motoyuki Murashima |
| collection | DOAJ |
| description | With the increasing demand for active friction control, we newly proposed to use dielectrophoresis to change the flow of PG-droplet-containing PAO4 to reduce the friction coefficient. The friction result with a 1-mm roller shows 20% reduction in friction coefficient (from 0.065 to 0.052) at AC 100 V, and in situ observation exhibits that PG tracks are formed over the contact area. On the other hand, at a high bias of 1000 V, the friction coefficient increases to 0.065. In this situation, in situ observation exhibits that PG forms a horseshoe-shaped track covering only the roller edges. Controlled friction tests and FEM analysis using 5-mm rollers revealed a unique behavior; a balanced bias effectively attracts the PG to the roller surface, and surface forces can resist mild dielectrophoretic forces to spread the PG across the roller surface. The present study strongly suggests the importance that the bias strength should be controlled to achieve a balance between surface force and dielectrophoretic force in order to obtain excellent lubrication conditions. |
| first_indexed | 2024-03-08T19:16:12Z |
| format | Article |
| id | doaj.art-22221220d53d42ecab35f22398cfaf14 |
| institution | Directory Open Access Journal |
| issn | 1881-2198 |
| language | English |
| last_indexed | 2024-03-08T19:16:12Z |
| publishDate | 2023-10-01 |
| publisher | Japanese Society of Tribologists |
| record_format | Article |
| series | Tribology Online |
| spelling | doaj.art-22221220d53d42ecab35f22398cfaf142023-12-27T05:45:54ZengJapanese Society of TribologistsTribology Online1881-21982023-10-0118629230110.2474/trol.18.292trolActive control of Lubricant Flow Using Dielectrophoresis and Its Effect on Friction ReductionMotoyuki Murashima0Kazuma Aono1Noritsugu Umehara2Takayuki Tokoroyama3Woo-Young Lee4Department of Mechanical Systems Engineering, Tohoku UniversityDepartment of Micro-Nano Mechanical Science and Engineering, Nagoya UniversityDepartment of Micro-Nano Mechanical Science and Engineering, Nagoya UniversityDepartment of Micro-Nano Mechanical Science and Engineering, Nagoya UniversityIntelligent Optical Module Research Center, Korea Photonics Technology InstituteWith the increasing demand for active friction control, we newly proposed to use dielectrophoresis to change the flow of PG-droplet-containing PAO4 to reduce the friction coefficient. The friction result with a 1-mm roller shows 20% reduction in friction coefficient (from 0.065 to 0.052) at AC 100 V, and in situ observation exhibits that PG tracks are formed over the contact area. On the other hand, at a high bias of 1000 V, the friction coefficient increases to 0.065. In this situation, in situ observation exhibits that PG forms a horseshoe-shaped track covering only the roller edges. Controlled friction tests and FEM analysis using 5-mm rollers revealed a unique behavior; a balanced bias effectively attracts the PG to the roller surface, and surface forces can resist mild dielectrophoretic forces to spread the PG across the roller surface. The present study strongly suggests the importance that the bias strength should be controlled to achieve a balance between surface force and dielectrophoretic force in order to obtain excellent lubrication conditions.https://www.jstage.jst.go.jp/article/trol/18/6/18_292/_pdf/-char/enactive friction controldielectrophoresispropylene glycollubrication flowtwo-phase lubricant |
| spellingShingle | Motoyuki Murashima Kazuma Aono Noritsugu Umehara Takayuki Tokoroyama Woo-Young Lee Active control of Lubricant Flow Using Dielectrophoresis and Its Effect on Friction Reduction Tribology Online active friction control dielectrophoresis propylene glycol lubrication flow two-phase lubricant |
| title | Active control of Lubricant Flow Using Dielectrophoresis and Its Effect on Friction Reduction |
| title_full | Active control of Lubricant Flow Using Dielectrophoresis and Its Effect on Friction Reduction |
| title_fullStr | Active control of Lubricant Flow Using Dielectrophoresis and Its Effect on Friction Reduction |
| title_full_unstemmed | Active control of Lubricant Flow Using Dielectrophoresis and Its Effect on Friction Reduction |
| title_short | Active control of Lubricant Flow Using Dielectrophoresis and Its Effect on Friction Reduction |
| title_sort | active control of lubricant flow using dielectrophoresis and its effect on friction reduction |
| topic | active friction control dielectrophoresis propylene glycol lubrication flow two-phase lubricant |
| url | https://www.jstage.jst.go.jp/article/trol/18/6/18_292/_pdf/-char/en |
| work_keys_str_mv | AT motoyukimurashima activecontroloflubricantflowusingdielectrophoresisanditseffectonfrictionreduction AT kazumaaono activecontroloflubricantflowusingdielectrophoresisanditseffectonfrictionreduction AT noritsuguumehara activecontroloflubricantflowusingdielectrophoresisanditseffectonfrictionreduction AT takayukitokoroyama activecontroloflubricantflowusingdielectrophoresisanditseffectonfrictionreduction AT wooyounglee activecontroloflubricantflowusingdielectrophoresisanditseffectonfrictionreduction |