Influence of Primary Spring Stiffness on Strength of C0 Bogie Frame
-
摘要: 为了合理地确定中间轴的一系弹簧刚度,研究了2种不同边界条件——弹簧约束和力约束下构架部分节点的应力,分析了中间轴一系弹簧在不同刚度和不同竖曲线下对构架部分节点应力的影响,并探讨了C0转向架构架应力重新分布现象.计算结果表明,C0转向架构架有限元计算模型的约束条件必须保证3根轴的轴质量相等;中间轴一系弹簧的垂向刚度比端轴的垂向刚度小时,构架应力分布更为合理.Abstract: In order to determine the reasonalbe stiffness of middle-axle primary spring,the distribution of stresses in C0 bogie frame was investigated with FEM(finite element method) based on two kinds of boundary conditions,i.e.,spring constraint and force constraint.The influence of middle-axle primary spring on stresses of partial key nodes was analyzed under different vertical curves and vertical stiffness.In addition,the re-distribution of stresses in C0 bogie frame was discussed.The numerical result shows that the constraint conditions in a finite element model for C0 bogie frame must ensure that the three axles have the same mass,and a reasonable distribution of stresses in C0 bogie frame can be obtained when the vertical stiffness of middle-axle primary spring is smaller than that of the two end-axles.
-
Key words:
- C0 bogie /
- primary spring stiffness /
- bogie frame /
- strength
-
罗赟,孙永鹏,张红军,等.架悬C0-C0轴式机车电机布置及悬挂的研究[J].铁道学报,2006,28(6):41-42.LUO Yun,SUN Yongpeng,ZHANG Hongjun,et al.Research on the motor arrangement and suspension of the six-axles locomotive with driving equipment mounted in the frame[J].Journal of the China Railway Society,2006,28(6):41-42.[2] International Union of Railways.UIC CODE 615-4,Bogie frame structure strength tests[S].2nd edition.Paris:International union of railways,2003.[3] 李强,刘志明,张桂青,等.提速客车转向架动应力分布拟合的研究[J].铁道学报,2001,23(4):105.LI Qiang,LIU Zhiming,ZHANG Guiqing,et al.Research on distribution of dynamic stress for speed increased passenger car bogies[J].Journal of the China Railway Society,2001,23(4):105.[4] 米彩盈.机车转向架焊接构架轻型化评定和疲劳强度分析[J].西南交通大学学报,1999,34(1):104.MI Caiying.Lightening assessment and fatigue strength analysis for the welded frame of locomotive bogies[J].Journal of Southwest Jiaotong University,1999,34(1):104.[5] 黄志辉,张红军,孙永鹏,等.三轴转向架一系悬挂弹簧设计[J].机车电传动,2005(4):36-38.HUANG zhihui,ZHANG hongjun,SUN yongpeng,et al.Design of primary spring for three-axle bogie[J].Electric Drive for Locomotive,2005(4):36-38. -
点击查看大图
计量
- 文章访问数: 1515
- HTML全文浏览量: 58
- PDF下载量: 419
- 被引次数: 0
下载: