聚脲涂覆油箱抗冲击仿真研究  

Simulation research on the impact resistance of the polyurea-coated fuel tank

作　　者：刘宇清 王显会[1] 孙晓旺 鲍志光 何永[1] 尹宁 Liu Yuqing;Wang Xianhui;Sun Xiaowang;Bao Zhiguang;He Yong;Yin Ning(School of Mechanical Engineering,Nanjing University of Science and Technology,Jiangsu Nanjing,210094,China;Inner Mongolia First Machinery Group Co.,Ltd.,Inner Mongolia Baotou,014030,China;Nanjing Guorui Defense Co.,Ltd.,Jiangsu Nanjing,210039,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]内蒙古第一机械股份有限公司,内蒙古包头014030 [3]南京国睿防务系统有限公司,江苏南京210039

出　　处：《机械设计与制造工程》2024年第3期1-5,共5页Machine Design and Manufacturing Engineering

基　　金：国家自然科学基金(11802140);中央高校基本科研业务费专项资金项目(30918011303)。

摘　　要：为提高车载油箱抗冲击能力、降低结构变形和损伤程度,以聚脲涂覆油箱为研究对象,通过材料试验获取Air1608型聚脲弹性材料力学性能参数。在普通油箱表面均匀喷涂5 mm厚聚脲材料,分别开展普通油箱和聚脲涂覆油箱在5 m高度自由跌落工况的有限元仿真计算和试验,仿真结果与试验结果有较好的一致性,聚脲涂覆油箱局部结构最大变形量与涂覆前相比降低约32%。同时开展在油箱内侧和双侧均匀喷涂聚脲情况下的仿真计算,研究发现双侧喷涂聚脲对油箱结构的弹性变形有良好的限制作用,能够减小油箱塑性变形,抗冲击性能较好。In order to improve the impact resistance of vehicle fuel tank and reduce the degree of structural deformation and damage,polyurea coated fuel tank is taken as the research object and material test is conducted to obtain the mechanical properties parameters of Air1608 polyurea elastic material.The 5 mm polyurea is sprayed uniformly on the surface of the common fuel tank,and the finite element simulation calculation and test are carried out respectively for the common fuel tank and polyurea coated fuel tank under the free drop condition at 5 m height.The simulation results are in good agreement with the test results,and the maximum deformation of the local structure of polyurea coated fuel tank is reduced by about 32%.At the same time,the simulation calculation of spraying polyurea evenly on the inside and both sides of the fuel tank is carried out.The study shows that spraying polyurea on both sides has a good restriction on the elastic deformation of the fuel tank structure,can reduce the plastic deformation of the fuel tank,and have the best impact resistance.

关 键 词：油箱 聚脲涂覆 跌落工况 有限元仿真 试验 

分 类 号：U463.99[机械工程—车辆工程]