广州三号线地铁车辆转向架构架模态分析  

Modal analysis of bogie frame of Guangzhou metro line 3

作　　者：孔凡国[1] 马丽明[1] 苏芳玉 王健[1] 

机构地区：[1]五邑大学机电工程学院,广东江门529020

出　　处：《现代机械》2015年第5期14-16,共3页Modern Machinery

基　　金：广东省自然科学基金资助项目(06029824)

摘　　要：为了进一步优化广州地铁三号线动车转向架的结构特征,选取其构架为研究对象。利用三维实体建模软件Pro/E建立实体模型,导入有限元分析软件ANSYS Workbench中。通过简化构架实体模型,采用自动划分和局部网格控制相结合的方法来划分网格,从而建立构架的有限元模型。建立Modal项目对构架进行自由模态分析,计算得出了前12阶模态的固有频率和振型,确定了其动态特性。其中最低的固有频率出现在第7阶,为33.443 Hz,有效地避免了与车体发生共振现象。另外,这为构架的改进设计提供了参考,也为进一步的动力学分析提供了基础。This study was aimed to optimizing the structure characteristics of Guangzhou Metro Line 3＇s bogie frame. Using the 3D software Pro / E,a geometric model was created and imported into the finite element software ANSYS Workbench.Through simplifying the solid model and combining the method of automatic mesh and local mesh control,the finite element model of the bogie frame was designed. By establishing modal project for free modal analysis,the natural frequency and vibration mode of the former 12 steps was computed and the structural dynamic characteristics were determined. The lowest natural frequency appeared in the 7thorder,33. 443 Hz,effectively preventing the resonance phenomenon. The study would provide reference for improving bogie frame design and lay a basis for further dynamic analysis.

关 键 词：转向架构架 有限元 模态分析 

分 类 号：U260.331[机械工程—车辆工程]