基于HyperMesh车载储氢系统结构优化与随机振动分析  

Structure optimization and random vibration aralysis of vehicle hydrogen strorage system based on HyperMesh

作　　者：唐小龙 潘青 李力军 燕泽英 申思佳 纪孟菲 赵强 TANG Xiaolong;PAN Qing;LI Lijun;YAN Zeying;SHEN Sijia;JI Mengfei;ZHAO Qiang(National Fuel Cell Technology Innovation Center,Weifang 261061,Shandong,China;Weichai Power Co.,Ltd.,Weifang 261061,Shandong,China)

机构地区：[1]国家燃料电池技术创新中心,山东潍坊261061 [2]潍柴动力股份有限公司,山东潍坊261061

出　　处：《农业装备与车辆工程》2024年第9期14-18,共5页Agricultural Equipment & Vehicle Engineering

基　　金：国家重点研发计划项目“车载复合材料储氢气瓶服役检测监测与诊断评估技术”(2021YFB4000800)。

摘　　要：近年来,燃料电池汽车的零排放逐渐受到人们的关注,氢系统作为燃料电池汽车的重要组成部分,其结构强度尤为重要。对某冷藏车用车载储氢系统结构进行有限元分析,由模态分析得到储氢系统框架的固有频率,通过冲击分析、随机振动分析得到储氢系统框架的薄弱位置,针对薄弱位置进行局部结构优化;优化前后的仿真结果对比表明,冲击分析最大应力由515.2 MPa降为289.1 MPa,随机振动分析最大应力由1 380.6 MPa降为294.3 MPa,优化后的车载储氢系统框架可靠性得到明显提升,研究结果对商用车车载储氢系统设计具有一定指导意义。In recent years,the zero emission of fuel cell vehicles has been paid more and more attention.As an important component of fuel cell vehicles,the structural strength of the hydrogen system is particularly important.Finite element analysis was carried out on the structure of the on-board hydrogen storage system for a refrigerated truck,the natural frequency of the hydrogen storage system frame was obtained through modal analysis,the weak position of the on-board hydrogen storage system frame was obtained through impact analysis and random vibration analysis,and the local structure optimization is carried out according to the weak position,and the simulation results before and after optimization were compared.The maximum stress of impact analysis decreased from 515.2 MPa to 289.1 MPa,and that of random vibration analysis decreased from 1 380.6 MPa to 294.3 MPa.The results showed that the reliability of the optimized vehicle hydrogen storage system frame had been significantly improved.The process of frame analysis,structure improvement,local optimization and test verification of the on-board hydrogen storage system was described,which had certain guiding significance for the design of on-board hydrogen storage system for commercial vehicles.

关 键 词：车载氢系统 静强度 随机振动 

分 类 号：U469.7[机械工程—车辆工程]