Treffer: 基于Isight集成平台的轨道弹条扣件优化设计.

For the problem of high fracture rate of the rail fastening clip, the finite element analysis was utilized to calculate the stress distribution and displacement changes of the elastic bar by ABAQUS. To improve the efficiency of the optimization analysis, geometric parameters which have a greater impact on the elastic bar were obtained through an orthogonal array design of experiments (DOE). Based on the Isight platform, the SolidWorks and ABAQUS were integrated and the simulation process scripts were written by Python, The geometric parameters were taken as design variables under the constraint of the standard installation, and the elastic bar optimization index was taken as the objective function. The results show that after optimization, the mass of the elastic bar and the maximum stress are reduced by 2. 1% and 9. 1%, respectively, and the optimization index of the elastic bar increased by 12. 3%, It proves that the performance of the elastic bar is improved successfully, and the buckling pressure under the same elastic range meets the standard requirements, which can provide a reference for the elastic bar design. [ABSTRACT FROM AUTHOR]

针对轨道弹条扣件断裂率较高的问题, 使用ABAQUS进行有限元分析, 计算弹条的应力分布和位移变化情况。为提高 弹条优化分析效率, 采用正交数组试验设计(design of experiments,DOE), 获得对弹条性能影响较大的几何参数。基于Isight 平台集成SolidWorks和ABAQUS, 利用Python编写仿真流程脚本。在标准安装约束下, 以几何参数为设计变量, 以弹条优化 指标为目标函数, 对弹条进行优化设计。结果表明：优化后, 弹条质量减少2. 1%, 最大应力减小9. 1%, 弹条优化指标提高 12. 3%, 弹条性能提升且在相同弹程下, 扣压力满足标准要求, 可为弹条设计提供参考. [ABSTRACT FROM AUTHOR]

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