DQ_(45)型钳夹车钳形梁试验耳孔应力分布不均的有限元研究  

The Finite Element Research on Uneven Distribution of Stresses on Ear Hole in the Test for the Schnabel of the DQ_(45) Schnabel Car

作　　者：关晓丽 

机构地区：[1]齐齐哈尔轨道交通装备有限责任公司技术中心,黑龙江齐齐哈尔161002

出　　处：《铁道车辆》2011年第6期7-10,47,共4页Rolling Stock

摘　　要：叙述了DQ45型钳夹车静强度试验时其钳形梁同一车耳孔处应力内外偏差较大、分布不均的现象。应用有限元分析技术,通过倾斜连接销的角度模拟试验承载装置上的车耳孔同轴度偏差,从理论上验证了试验承载装置上的车耳孔同轴度发生偏差是引起耳孔处应力内外偏差较大、分布不均的主要原因。The phenomina of big difference between inside and outside stresses,and the uneven distribution of stresses at the same ear hole of the schnabel during the static strength test for the DQ45 schnabel car are described.With the finite element analysis technology,by tilting of the angle of the joint bolt to simulate the axial deviation of ear hole on the load carrying device in test,it is proved theoretically that the axial deviation of ear hole on the load carrying device in test is the main cause to the big difference between inside and outside stresses,and the uneven distribution of stresses at the ear hole.

关 键 词：DQ45型钳夹车 钳形梁 耳孔 应力分布 有限元 

分 类 号：U272.65[机械工程—车辆工程]