基于ANSYS的CRH5转向架构架测点分析

ANSYS-based testing point analysis on CRH5 bogie frame

为解决CRH5转向架构架动态检修过程中有限测试点和无限测试范围之间的矛盾,以CRH5转向架构架为研究对象,依据UIC615-4-2003标准得到CRH5转向架构架超载工况载荷,利用ANSYS仿真软件对CRH5转向架构架建模和仿真分析.仿真结果表明:该车CRH5转向架构架在机械性能方面满足设计要求,应力集中的关键部位是空气弹簧座肋板、侧梁弯角和部分支座处.结合ANSYS仿真结果和实际运营经验提出应力测试点布点原则,选取长期跟踪试验测试点,实现以有限的测试点对CRH5转向架构架应力进行动态监测的目的.

In order to resolve the conflicts between limited testing points and unlimited desired testing scopes of CRH5 bogie frame for dynamic maintenance, the static performance under overloading conditions is analyzed via ANSYSTM based on UIC615-4-2003 standards. Accordingly, it is shown from simulation results that the vehicle meets the design requirements in terms of mechanical properties, whereas the key parts with the stress concentration are air spring floor, side beam angle and partial pedestal. By combining simulation results with actual situations, the stress distributions, together with long-term tracked testing points, can be applied for dynamic monitoring on limited testing points.