轨道车辆补强板冲压成形的过程耦合参数优化

Interactive Coupling Parameters Optimization for Stamping Quality of Rail Vehicle Reinforcing Plate

为了减小轨道车辆补强板拉延成形的最大减波率、提高补强板拉延成形质量,提出了基于精英蜂群算法的过程耦合参数优化方法。建立了补强板冲压成形的数值模拟模型,并基于厂家数据对模型精度进行了验证。建立了以表面起皱为约束、最小化最大减波率为目标的优化模型,分析了过程工艺参数的耦合性。通过类比,将过程耦合参数优化问题转化为蜂群算法优化问题。引入了社会群精英学习策略,定义了虚拟精英核的概念,使用基于虚拟精英核的蜜蜂引导更新方式,设计了基于精英蜂群算法的过程耦合参数优化步骤。经试验验证,精英蜂群算法优化后的补强板最大减波率均值比优化前(厂家产品)减小了25.24%,有效提高了补强板拉延成形质量。试验结果验证了精英蜂群算法在补强板拉延参数优化中的优越性。

In order to reduce the maximum wave reduction rate and improve the drawing quality of reinforcement plate of rail vehicle,a process coupling parameter optimization method based on elite bee colony algorithm is proposed.The numerical simulation model of reinforcing plate stamping is established,and the accuracy of the model is verified based on the manufacturer's data.An optimization model with the constraint of surface wrinkling and the goal of minimizing the maximum wave reduction rate is established,and the coupling of process parameters is analyzed.By analogy,the optimization problem of process coupling parameters is transformed into the optimization problem of bee colony algorithm.The social group elite learning strategy is introduced,the concept of virtual elite core is defined,and the bee guided update method based on virtual elite core is used to design the process coupling parameter optimization step based on elite bee colony algorithm.The experimental results show that the average value of the maximum wave reduction rate of the reinforcement plate optimized by the elite bee colony algorithm is 25.24%lower than that before the optimization(manufacturer’s products),which effectively improves the drawing quality of the reinforcement plate.The experimental results verify the superiority of elite bee colony algorithm in the optimization of drawing parameters of reinforcing plate.