面向轻量化的高速列车制动控制箱机械性能研究

Study on Mechanical Performance of Lightweight-oriented Brake Control Box on High-speed Train

高速列车用制动控制箱不仅需要满足在复杂载荷下的刚度和强度储备要求,还应尽量的做到轻量化和紧凑化。以高速列车用的轻量化铝合金制动控制箱体为研究对象,使用有限元的方法对制动控制箱的机械性能进行研究。对箱体的三维实体模型及内部各功能模块和相互作用进行了简化,对边界条件进行了定义,从而建立制动控制箱的有限元分析模型。以此模型为基础分别对箱体进行了模态分析、静强度分析、抗冲击强度分析和疲劳分析,计算结果表明铝合金轻量化箱体能够满足铁路车辆的刚度和强度要求。

Due to complex load condition,the high-speed brake control box not only need reliable mechanical performance but also to be lightweight and compact.Based on high-speed train brake control box,the finite element method (FEM) was used to study the mechanical characteristic of the box.In consideration of the simplified structure and interaction of each function modules and the definition of the boundary conditions,the FEM model was constructed.Modal analysis and strength analysis including static strength,shock resistance strength and fatigue strength of the control box was computed.The results show that the lightweight-oriented aluminum brake control box satisfies the stiffness and strength requirement of high-speed train.