基于子模型的铁路车辆结构强度精细计算  

Structural Intensity Refined Calculation of Railroad Vehicle Base on Sub-model

作　　者：周宇[1] 万朝燕[1] 谢素明[2] 

机构地区：[1]大连交通大学机械工程学院,辽宁大连116028 [2]大连交通大学交通运输工程学院,辽宁大连116028

出　　处：《铁道机车车辆》2009年第1期16-18,共3页Railway Locomotive & Car

基　　金：国家"863"高科技资助项目(2006AA04Z160);辽宁省教育厅计划资助项目(05L047);辽宁省重点实验室项目(2008S037)

摘　　要：对某铁路货车车体结构进行了有限元强度精细计算。根据车体的对称性建立了1/4几何模型;在Hy-perMesh中采用实体单元建立有限元分析模型,按纵向、垂向工况进行加载;导入ANSYS中完成对车体主模型的静强度有限元分析,通过计算结果与试验测试数据的对比,验证了模型的合理性;运用子模型技术,选取枕梁附近区域建立子模型,进行有限元分析精细计算,得到了较主模型更为接近测试数据的结果。The finite element intensity refined calculation is carried on to freight wagon body. First, the 1/4 geometric model is established according to the symmetry of the freight wagon. Next, the finite element analysis model is established, using the entity unit, in HyperMesh and applying the load according to the longitudinal and vertical operating mode. Then, the static intensity finite element analysis of the main model is completed in ANSYS and confirmed the model rationality through comparing the computed result with the experiment test data. Finally, the sub - model is established nearby the corbel and the refined calculation is carried on, following better results close to the experimental data than that of the main model.

关 键 词：铁路货车车体 有限元分析 子模型 精细计算 

分 类 号：U270.12[机械工程—车辆工程]