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
• 起止时间: 1989-04-01 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8818337&HistoricalAwards=false
• 关键词: Investigating; Wear; Mechanism; Electrical; Brushes

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.

将研究整体碳电刷的磨损。 电刷磨损的颗粒喷射理论的分析模型将与实验获得的结果进行比较。 该实验装置将能够观察接触区域中热点的发展和移动，这些热点是由于摩擦加热和从电刷表面流向匹配表面的电流产生的加热而产生的。 将确定许多测试参数的效果，并将结果用于验证和改进模型。