2013 Fiscal Year Final Research Report
Effect of electric field on friction and wear of carbon brush
| Project/Area Number |
23656120
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Nagoya University |
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Principal Investigator |
UMEHARA Noritsugu 名古屋大学, 工学(系)研究科(研究院), 教授 (70203586)
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| Co-Investigator(Kenkyū-buntansha) |
KOUSAKA Hiroyuki 名古屋大学, 大学院・工学研究科, 准教授 (90362318)
TOKOROYAMA Takayuki 名古屋大学, 大学院・工学研究科, 助教 (20432247)
TSUKIYAMA Yousuke 新潟大学, 大学院・自然科学研究科, 助教 (00533639)
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| Project Period (FY) |
2011 – 2013
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| Keywords | トライボロジー / カーボンブラシ / 摩擦 / 電場 |
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| Research Abstract |
In order to realize new transmission and brake systems with small volume, high friction coefficient and wear resistance will be needed for sliding elements. Carbon fiber brush will be one of the promising elements if it have high friction coefficient and wear resistance. In this research, we proposed a loop-type carbon brush to avoid the sever wear of carbon brush from the edge. The proposed loop-type one showed 1/10 of wear volume compared to the normal-type carbon brush. In order to improve the friction coefficient of carbon brush, electric voltages were applied to the brush as 100 V, 200V and 300V. However electric voltages could not change the elastic stiffness of carbon bush.
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