On-board real-time railroad bearing defect detection and monitoring

被引:34
|
作者
Sneed, WH [1 ]
Smith, RL [1 ]
机构
[1] Transportat Technol Ctr Inc, Pueblo, CO 81001 USA
来源
PROCEEDINGS OF THE 1998 ASME/IEEE JOINT RAILROAD CONFERENCE | 1998年
关键词
D O I
10.1109/RRCON.1998.668098
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
For several years, the Association of American Railroads (AAR) has been developing new techniques to detect defective roller bearings as part of their new generation wayside acoustic detector program. This paper reviews thermal and vibration data collected from on-board a test train used to simulate railroad revenue service conditions during the test program. The train tests were carried out by Transportation Technology Center now known as Transportation Technology Center, Inc. (TTCI), a subsidiary of the AAR, at the Transportation Technology Center (TTC), Pueblo, Colorado in November 1996. Of all the bearing defect types to be detected, one of the most challenging is that of a bearing with a loose inner raceway commonly referred to as a spun cone. Normal roller bearings have "press fit" inner raceways that keep them from rotating or sliding about the axle. However, the spun cone bearing has lost its tight press fit and can slowly rotate about the axle journal axis. The spun cone bearing defect is suspected to be the cause of many of today's confirmed hot bearing setouts.(1) This paper compares both thermal and vibration data from bearings with no internal defects to those with spun cones, broken rollers, and water etched surfaces.
引用
收藏
页码:149 / 153
页数:5
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