预紧力对接触网套管双耳强度的影响分析  

The Strength Analysis of Pre-tightening Force on Covering Pipe-ear

作　　者：张金[1] 逯江[1] 别亦难 周干[3] 

机构地区：[1]河南中烟工业有限责任公司安阳卷烟厂,安阳455000 [2]新疆大学机械工程学院,乌鲁木齐830000 [3]郑州轻工业学院机电工程学院,郑州450000

出　　处：《价值工程》2015年第20期130-131,共2页Value Engineering

摘　　要：本文以失效频率很高的接触网零部件套管双耳作为研究对象,简化其力学模型,考虑预紧力、风载、履冰三种载荷因素对套管双耳最大的应力影响。根据实际情况,分12种工况对接触网套管双耳进行数值模拟。研究结果表明,预紧力对套管双耳强度影响较为显著,在实际安装中以2500N为宜。为接触网套管双耳的静强度可靠性研究和设计提供了参考。The covering pipe-ear is one of the important components of the overhead contact line system（OCS） for supporting loads.The finite element model of covering pipe-ear was established, as the pre-tightening force, wind load and ice load all have effect on it, the stress distribution law were simulated under 12 kinds of loading conditions. The results show that the pre-tightening force has remarkable influence on covering pipe-ear and 2500 N pre-tightening force is appropriate for the aluminum alloy covering pipe-ear. It is useful for the catenary components static strength reliability design.

关 键 词：套管双耳 有限元 预紧力 HYPER MESH 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论] TB21[自动化与计算机技术—计算机科学与技术]