论文部分内容阅读
利用数值仿真技术开展高速动车转向架、地板等大部件的虚拟焊接。针对大型焊接结构计算的难点,采用先进热源模型及高效计算方法,测试不同温度下铝合金、耐候钢等高铁用材料的热物理参数,建立高铁虚拟焊接用基本材料热物理参数库,开展高速动车车体结构的虚拟仿真计算。结果表明,此技术可指导车体焊接工艺优化,优化车体结构设计,降低焊接变形和制造成本,改善制造质量,提高产品服役性能。
The use of numerical simulation technology to carry out high-speed car bogie, floor and other large components of the virtual welding. In view of the difficulty of large-scale welding structure calculation, the thermal physics parameters of high-iron materials such as aluminum alloy and weathering steel under different temperatures were tested by advanced heat source model and efficient calculation method. The thermal physics parameter database of basic materials for high- Virtual Simulation Calculation of Car Body Structure. The results show that this technology can guide the optimization of welding process, optimize the structural design of the vehicle body, reduce the welding deformation and manufacturing costs, improve the manufacturing quality and improve the service performance of the products.