基于耐撞性的有轨电车防爬器结构优化设计方法

Structural Optimization Design of Tram Anti-creeper Device Based on Crashworthiness

针对有轨电车倾斜碰撞安全性问题,基于ANSYS和MATLAB软件,采用APDL语言建立了有轨电车前端防爬器参数化模型,并将形状和尺寸组合优化方法引入防爬器优化设计中。以防爬器整体结构抗弯刚度和一阶固有频率为分析对象,同时实现其轻量化目标,并对优化后的防爬器结构进行了动态碰撞模拟和试验验证。结果表明,优化设计后的防爬器满足一阶固有频率和碰撞工况的要求,且防爬器重量减轻了19.8%。

Aiming at the safety problem of tram side inclined collision,based on ANSYS and MATLAB software,a parametric model of tram front end anti-creeper device is established by using APDL language,the shape and size combination optimization method is applied to the optimal design of anti-creeper device.Taking the flexural rigidity and first-order natural frequency of the overall anti-creeper structure as the research target,aiming at achieving its lightweight goal,dynamic collision simulation and experimental verification of the optimized anti-creeper device are carried out.The results show that the optimized anticreeper could meet the requirements of first-order natural frequency and collision condition,and the weight of which is reduced by 19.8%.