| 摘要：为了确定泰国BS100钢轨菱形交叉的强度是否能够满足使用要求,应用车辆—轨道耦合系统动力学略论车辆通过菱形交叉的最大轮轨力,并将计算结果作为菱形交叉的强度计算荷载;采用三维实体有限单元法略论菱形交叉的应力和变形。结果表明,菱形交叉在列车动载影响下,变形合理,轨道状态能得到较好保持;菱形交叉的最大Mises应力为262.917 MPa,小于材料屈服强度440 MPa,且屈服强度与最大Mises应力的比值大于一般工程强度安全系数1.3,辙叉强度满足使用要求,并具有较大储备。 Abstract：In order to determine whether Thailand BS100 rail diamond crossing intensity can meet the use requirements, using vehicle track coupling system dynamics analysis of the vehicle through cross diamond wheel rail force, and the calculated results as cross diamond strength calculation load; using three-dimensional finite element method in the analysis of stresses and deformation in cross diamond. The results show that the diamond crossing in the train dynamic loading, a reasonable deformation, track condition can get better keep; diamond crossing the maximum Mises stress MPa 262.917, is less than the yield strength of the material 440 MPa and the yield strength and maximum Mises ratio should be greater than the general engineering strength safety coefficient of 1.3, the frog strength meet the requirements, and has a large reserve. 引言：菱形交叉是交叉渡线和交分道岔的组成部分,它使机车车辆能够在平面内从一股道越过另一股道。菱形交叉一般是直线与直线的交叉,其主要部件是高锰钢辙叉和一些联结零件,其中高锰钢辙叉是用模具浇注而成,并经过全加工。道岔是限制列车速度的关键设备,是客运专线建设中的一项重大 ，泰语专业论文，泰语论文 |
