辽宁工程技术大学学报（自然科学版）2012，Vol.31Issue(1)：81-84,4.
滑动电接触磨损量最小的最佳载荷实验
Optimum normal load when minimum wear loss of electrical sliding contact
摘要
Abstract
In order to understand the frictional characteristics of sliding electrical contact wear, and find out optimum operational conditions, taking a pantograph and catenary system to power supply as an example, this study investigates the impact of normal load on the tribological characteristics of pantograph plate and contact wear under electrical current. The experimental results show that with the increase of normal load, the wear loss of pantograph plate increases without electrical current. While with electrical current, however, it obviously shows different wearing characteristics: the wear loss of sliding plate decreases initially and then increases with the normal load increase, and the decrease rate is bigger than increase rate. At the mean time, the optimum normal load value is defined as the normal load when the wear loss is minimum. The optimum value increases with the increase of sliding velocity. When the normal load value is bigger than optimum load value, the main wear is mechanical wear. However, the main wear becomes electrical wear when normal load is less than optimum load value. The research result provides a useful guidance for studying normal load optimum value.关键词
滑动电接触/弓网系统/最佳载荷/载流/摩擦磨损/实验/机械磨损/电气磨损Key words
sliding electrical contact wear/ pantograph and catenary system/ optimum load/ under current/frictional wear/ experiments/ mechanical wear/ electrical wear分类
信息技术与安全科学引用本文复制引用
郛凤仪,娄晓妹,李本君,陈忠华,李雷,石立志..滑动电接触磨损量最小的最佳载荷实验[J].辽宁工程技术大学学报（自然科学版）,2012,31(1):81-84,4.基金项目
国家自然科学基金资助项目(50977040) （50977040）
辽宁省自然科学基金资助项目(201102086) （201102086）
