摩擦学
材料科学
激发
弹簧(装置)
复合材料
谐波
结构工程
声学
工程类
电气工程
物理
作者
Wei Yuan,Guangneng Dong,Kwai‐Sang Chin,Meng Hua
标识
DOI:10.1016/j.triboint.2015.12.044
摘要
Tribological properties of the working surfaces under damped harmonic excitation (DHE) loading are experimentally evaluated. Tribological tests under DHE loading produced by a spring-connecting weight system were capable to monitor friction with a force sensor and to analyze wear processes by an on-line visual ferrography system, respectively. Effects of different spring-connecting loads and various excitation intervals on the tribological behavior were investigated. Results indicated the existence of an appropriate spring-connecting load to give low coefficient of friction. High excitation frequency could help to accelerate the early completion of running-in process, but long excitation intervals could aggravate wear rate in the running-in period. Main surface damages or wear modes were identified as the consequence of fatigue, side flow, and plowing to generate grooves under various DHE loadings.
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