论文部分内容阅读
针对高速列车车轮轻量化问题,采用APDL语言建立动车组拖车车轮的参数化优化设计模型,对车轮结构几何形状进行优化,进行车轮的参数化优化设计及结构强度优化归一分析。分析结果表明:优化后车轮的辐板厚度减薄,车轮质量减少22.89kg,其结构强度满足UIC510-5标准的要求;与原始车轮相比,优化车轮径向应力最大和最小值的绝对值增大,轴向应力无明显变化,其中车轮在曲线通过工况下最大和最小径向应力绝对值的增量最大,分别为41.1MPa和69.0MPa;优化车轮辐板区域的应力有所增加,提高了辐板区域金属材料的利用率,更充分地发挥了车轮制造材料的机械性能,有利于车轮结构轻量化。
In order to reduce the weight of high-speed train wheels, APDL language was used to establish the parametric optimization design model of the trailer car wheels. The wheel geometry was optimized and the wheel parameters were optimized and the structural strength was optimized. The results show that the optimal thickness of the wheel is reduced, the wheel mass is reduced by 22.89kg, and its structural strength meets the requirements of the UIC510-5 standard. Compared with the original wheel, the absolute value of the maximum and minimum radial wheel stress is increased The axial and axial stresses did not change significantly. The maximum increment of the maximum and minimum radial stress of the wheel under the curve passing conditions was 41.1MPa and 69.0MPa, respectively. The stress in the optimized spoke area increased and increased The utilization of the metal material in the web area gives full play to the mechanical properties of the wheel manufacturing materials and is advantageous to the lightweight of the wheel structure.