Article(id=1200070547292914109, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070538661031941, articleNumber=null, orderNo=null, doi=10.20104/j.cnki.1674-6546.20230295, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1693152000000, revisedDateStr=2023-08-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1764048714707, onlineDateStr=2025-11-25, pubDate=1713110400000, pubDateStr=2024-04-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764048714707, onlineIssueDateStr=2025-11-25, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764048714707, creator=13701087609, updateTime=1764048714707, updator=13701087609, issue=Issue{id=1200070538661031941, tenantId=1146029695717560320, journalId=1189918454225211397, year='2024', volume='', issue='4', pageStart='1', pageEnd='48', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764048712649, creator=13701087609, updateTime=1764049231629, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200072715479642977, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070538661031941, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200072715479642978, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070538661031941, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=17, endPage=23, ext={EN=ArticleExt(id=1200070547678790103, articleId=1200070547292914109, tenantId=1146029695717560320, journalId=1189918454225211397, language=EN, title=Study on the Safety of Battery Structure under Side Pole Impact Conditions, columnId=1200066399931564301, journalTitle=Automotive Engineer, columnName=Special Topic on Passive Safety Technology, runingTitle=null, highlight=null, articleAbstract=
In order to enhance the safety of the battery system in electric vehicles under side pole impact, a finite element model incorporating the battery system was established. The accuracy of this finite element model was validated through vehicle side pole impact tests. Using this model, the deformation status and acceleration response of the battery pack in side rigid pole impact scenarios were analyzed with structural deformation and acceleration impact as the primary evaluation criteria. The results indicate that under side pole impact, both the external framework and internal support structure of the battery pack experience significant deformation, and all positions within the battery system withstand substantial acceleration impacts. Based on this result, the paper proposed safety-specific design for this impact condition when designing power battery pack and vehicle body sill beam structure.
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为提高侧面柱碰撞工况下纯电动汽车动力电池系统的安全性,建立了包含动力电池系统的侧面柱碰撞有限元模型,并利用整车侧面柱碰撞试验验证了有限元模型的准确性,以结构变形量和加速度冲击为评价指标,利用该模型分析了侧面刚性柱碰撞工况下的电池包变形状态和加速度响应,结果表明,侧面柱碰撞工况下,动力电池包外框架及内部支撑结构均发生较严重变形,电池系统各位置均承受较大加速度冲击。基于该结果,提出了在动力电池包和车身门槛梁结构设计时应面向该工况进行针对性安全设计的建议。
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各测点处加速度响应曲线, figureFileSmall=SZsC/Yu2Ngttw5ycujKlnw==, figureFileBig=FpyTUDKiF8bSqk0l/GrctA==, tableContent=null), ArticleFig(id=1200070560534331832, tenantId=1146029695717560320, journalId=1189918454225211397, articleId=1200070547292914109, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 部件 | 材料牌号 | 单元类型 | 模拟材料类型及编号 | 弹性模量/GPa | 泊松比 | 密度/kg·m-3 | 屈服强度/GPa |
| 上箱盖 | SCR2252 | 壳 | 分段线性(MAT24) | 3.1 | 0.25 | 1 220 | 0.065 |
| 电池模组 | | 六面体 | 可压缩泡沫(MAT63) | 0.5 | 0.01 | 2 000 | |
| 模组外壳 | 铝(6061 T6) | 壳 | 分段线性(MAT24) | 68.3 | 0.33 | 2 770 | 0.240 |
| 固定横梁 | 铝(6063 T6) | 壳 | 分段线性(MAT24) | 68.3 | 0.33 | 2 770 | 0.210 |
| 下壳体 | 铝(6063 T6) | 壳 | 分段线性(MAT24) | 68.3 | 0.33 | 2 770 | 0.210 |
), ArticleFig(id=1200070560639189441, tenantId=1146029695717560320, journalId=1189918454225211397, articleId=1200070547292914109, language=CN, label=表1, caption=
动力电池包有限元模型各部件单元类型及材料参数
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| 部件 | 材料牌号 | 单元类型 | 模拟材料类型及编号 | 弹性模量/GPa | 泊松比 | 密度/kg·m-3 | 屈服强度/GPa |
| 上箱盖 | SCR2252 | 壳 | 分段线性(MAT24) | 3.1 | 0.25 | 1 220 | 0.065 |
| 电池模组 | | 六面体 | 可压缩泡沫(MAT63) | 0.5 | 0.01 | 2 000 | |
| 模组外壳 | 铝(6061 T6) | 壳 | 分段线性(MAT24) | 68.3 | 0.33 | 2 770 | 0.240 |
| 固定横梁 | 铝(6063 T6) | 壳 | 分段线性(MAT24) | 68.3 | 0.33 | 2 770 | 0.210 |
| 下壳体 | 铝(6063 T6) | 壳 | 分段线性(MAT24) | 68.3 | 0.33 | 2 770 | 0.210 |
), ArticleFig(id=1200070560756629960, tenantId=1146029695717560320, journalId=1189918454225211397, articleId=1200070547292914109, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 部件 | 一阶模态频率仿真结果/Hz | 一阶模态频率试验结果/Hz | 误差/% |
| 上箱盖 | 36.8 | 35.5 | 3.66 |
| 动力电池包 | 50.8 | 49.6 | 2.41 |
), ArticleFig(id=1200070560924402129, tenantId=1146029695717560320, journalId=1189918454225211397, articleId=1200070547292914109, language=CN, label=表2, caption=
动力电池包及上箱盖模态仿真与试验结果对比
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| 部件 | 一阶模态频率仿真结果/Hz | 一阶模态频率试验结果/Hz | 误差/% |
| 上箱盖 | 36.8 | 35.5 | 3.66 |
| 动力电池包 | 50.8 | 49.6 | 2.41 |
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