发动机罩板的有限元分析及轻量化设计  

Finite Element Analysis and Lightweight Design of Engine Hood

作　　者：邢帅[1] 焦学健[1] 苏尚彬 郭帅[1] 唐小龙 

机构地区：[1]山东理工大学交通与车辆工程学院,山东省淄博市255049 [2]山东工业职业学院冶金与汽车工程系,山东省淄博市256414

出　　处：《农业装备与车辆工程》2018年第1期78-81,共4页Agricultural Equipment & Vehicle Engineering

摘　　要：利用Hyperworks软件对铝合金材质的发动机罩板进行有限元分析,经过仿真得出发动机罩板的弯曲刚度,侧向刚度,扭转刚度及模态频率。将发动机罩板的铝合金材料改为复合材料,基于新模型进行拓扑优化,分析得出加强筋的最佳布局形式来提高罩板的刚度及一阶模态频率。在满足原发动机罩板刚度、一阶模态频率的前提下,达到减轻发动机罩板质量的目的。By using Hyperworks software, finite element analysis of engine hood plate made of aluminum alloy is carried out. Through simulation, bending stiffness, lateral stiffness, torsional stiffness and modal frequency of engine hood are achieved. The aluminum alloy material of engine hood is replaced by composite material, and topology optimization based on the new model is carried out. The best layout form of reinforcing rib is analyzed to improve the stiffness and the first modal frequency of the hood. Finally, under the premise of meeting the original stiffness and first order frequency of hood, the purpose of reducing the mass of engine hood was realized.

关 键 词：发动机罩板 复合材料 拓扑优化 刚度 

分 类 号：U463.833[机械工程—车辆工程]