Examination of a failed fifth wheel coupling

被引：4
|
作者：
Fernandes, PJL [1 ]
机构：
[1] CSIR, MATTEK, Adv Engn & Testing Serv, ZA-2006 Auckland Pk, South Africa
来源：
ENGINEERING FAILURE ANALYSIS | 1998年 / 5卷 / 01期
关键词：
automotive failures; bearing failures; mechanical connections; safety;
D O I：
10.1016/S1350-6307(97)00024-1
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Examination of a fifth wheel coupling which had failed in service showed that it had been modified and that the operating handle had been moved from its original design position. This modification completely eliminated the safety device designed to prevent inadvertent opening of the coupling locking mechanism. No alternative safety device was employed to ensure the safety of the modified design. Furthermore, the rubbing plate on the pup-trailer was significantly smaller than that on the fifth wheel, with the result that the load transfer conditions were not optimal. This may have resulted in excessive damage to the wearing components such as the locking jaw, the locking bar and the king pin. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：29 / 33
页数：5
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