某乘用车燃油箱强度仿真及试验研究  

Simulation and Experimental Study on the Strength of a Passenger Car Fuel Tank

作　　者：于洋磊 冯博 王鹏 曾志新 YU Yanglei;FENG Bo;WANG Peng;ZENG Zhixin(GAC Automotive Research&Development Center,Guangzhou 511434,China)

机构地区：[1]广州汽车集团股份有限公司汽车工程研究院,广东广州511434

出　　处：《汽车实用技术》2024年第2期86-89,共4页Automobile Applied Technology

摘　　要：针对乘用车燃油箱这一重要的安全部件,在其前期设计阶段进行考虑流固耦合的有限元分析发现,前部和后部跌落存在应变超标现象。对其风险部位进行结构改进,强度仿真显示,等效塑性应变最大值相比改进前分别减少44.7%和33.3%,跌落试验显示均无泄漏和破裂发生,满足设计要求。结果表明,基于有限元分析的仿真和试验为燃油箱的开发提供了科学依据,可有效提升产品开发效率并降低试验成本。For the fuel tank of the passenger car,an important safety component,a finite element analysis considering fluid-structure interaction is conducted in its early design stage,and it is found that there is strain exceeding phenomenon in the front and rear drops.Structural improvements are made to its risk areas,and strength simulations show that the maximum equivalent plastic strain values decreased by 44.7%and 33.3%respectively compared to before the improvement.The drop test shows that there is no leakage and rupture,which meets the design requirements.The simulation and testing based on finite element analysis provide a scientific basis for the development of fuel tanks,which can effectively improve product development efficiency and reduce test costs.

关 键 词：燃油箱 结构强度 有限元分析 试验研究 

分 类 号：U464.136.5[机械工程—车辆工程]