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Investigating the Wear Mechanism in Electrical Brushes Associated with Thermoelastic Instability

Investigating the Wear Mechanism in Electrical Brushes Associated with Thermoelastic Instability
研究与热弹性不稳定性相关的电刷磨损机制
批准号：
8818337
负责人：
Michael Bryant
金额：
$20.62万
依托单位：
University of Texas at Austin
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1989
资助国家：
美国
项目状态：
已结题
起止时间：
1989-04-01 至 1992-09-30
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8818337&HistoricalAwards=false
关键词：
InvestigatingWearMechanismElectricalBrushes

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英文摘要
The wear of monolithic carbon electrical brushes will be studied. Analytical modeling of the particle ejection theory of brush wear will be compared with experimentally obtained results. The experimental apparatus will make it possible to observe the development and movement of hot spots in the contact area, generated due to both frictional heating and heating from the electrical current passing from the brush surface to the matching surface. The effect of a number of test parameneters will be determined and the results used to validate and improve the model.
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