Inspection of locomotive bearing rings by the acoustic-emission method

被引:0
作者
L. N. Stepanova
E. S. Tenitilov
S. A. Beher
机构
[1] Siberian State University of Railways,
来源
Russian Journal of Nondestructive Testing | 2009年 / 45卷
关键词
bearing ring; acoustic emission; strain gauging; fatiguc crack; localisation; total count; flow;
D O I
暂无
中图分类号
学科分类号
摘要
The results of testing the bearing rings (BRs) of a locomotive axle box by the acoustic-emission (AE) method are presented. The small size of the localization zone of BRs leads to a significant spread of the coordinates of flaws even at minimal errors of the time of arrival of AE signals at piezoelectric-antenna probes. To refine the testing technique, the maximum testing load necessary for initializing AE signals is determined. Deformations in BRs are measured with a strain-gauging system related to the AE system. During recording of AE signals, the mechanical stresses are measured, thus allowing rejection of parasitic signals and an increase in the localization accuracy.
引用
收藏
页码:631 / 635
页数:4
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