重型商用车驾驶室轻量化设计

Lightweight Design for Heavy-duty Truck Cab

以某重型商用车驾驶室为研究对象,运用拓扑优化设计方法对该驾驶室进行轻量化分析与改进设计,并与原驾驶室的性能进行了对比。结果表明,轻量化驾驶室的结构强度、刚度和低频固有振动特性不低于原驾驶室,并使驾驶室抗前部摆锤冲击和高顶驾驶室耐顶压性能得到了改善。在不改变驾驶室结构材料特性的条件下,使驾驶室质量减小46 kg,取得了良好的轻量化效果。

A heavy-duty truck cab was analyzed and lightweight designed by using topological optimization method. Performance of the initial cab and lightweight structure was compared. It indicated that the front pendulum impact property of the cab and roof static pressure performances of the high-roof cab were improved when structural strength, rigidity and low-frequency natural vibration characteristics of the cab were not lower than the initial cab. Meanwhile, structural mass of the cab was reduced by 46 kg without changing of cab materials. A good lightweight design effect is acquired.