EPP材质重型载货汽车卧铺的设计研究

Design Research on Expanded Polypropylene(EPP)Heavy Truck Sleeper

为提高重型载货汽车轻量化效果,实现节能减排,依据发泡聚丙烯(EPP)制品设计基本准则,对不同发泡倍率EPP(10倍、9倍、8倍)的承重状态如位移变化、弯曲情况、扫描电子显微镜(SEM)图、表面外观进行分析研究,通过UG NX 11.0高级仿真分析软件,利用有限元法对不同厚度(30 mm、40 mm、50 mm)EPP的结构强度进行分析,结合材料性能和外观表面效果确定了EPP材质重型载货汽车卧铺最佳发泡倍率及厚度。

To achieve lightweight and energy saving and emission reduction of heavy trucks,load bearing condition(displacement change,bending,pictures of Scanning Electron Microscope(SEM)and surface appearance)of Expanded Polypropylene(EPP)with different foaming ratios(10 times,9 times and 8 times)is analyzed and studied based on the basic design criterion of EPP products.Through UG NX 11.0 simulation analysis software,the structural strength of different thicknesses(30 mm,40 mm,50 mm)is analyzed by finite element method,and combined with material properties and appearance surface effects,the optimal foaming ratio and thickness of EPP heavy truck sleeper are defined.