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.

整体碳电刷的磨损将是 研究了 粒子喷射的解析模型 电刷磨损理论将与实验进行比较 取得的成果。 实验仪器会让它 可以观察到热的发展和运动 接触区域中的斑点，由于摩擦和 加热和加热来自电流通过 将刷表面与匹配表面接合。 的影响 将确定测试参数的数量， 用于验证和改进模型。