Article(id=1200070539801882639, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070539239845894, articleNumber=null, orderNo=null, doi=10.20104/j.cnki.1674-6546.20230385, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1694707200000, revisedDateStr=2023-09-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1764048712920, onlineDateStr=2025-11-25, pubDate=1715702400000, pubDateStr=2024-05-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764048712920, onlineIssueDateStr=2025-11-25, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764048712920, creator=13701087609, updateTime=1764048712920, updator=13701087609, issue=Issue{id=1200070539239845894, tenantId=1146029695717560320, journalId=1189918454225211397, year='2024', volume='', issue='5', 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=1764048712787, creator=13701087609, updateTime=1764049260169, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200072835185079140, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070539239845894, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200072835185079141, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070539239845894, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=33, endPage=38, ext={EN=ArticleExt(id=1200070539982237714, articleId=1200070539801882639, tenantId=1146029695717560320, journalId=1189918454225211397, language=EN, title=Topology Optimization of Battery Bracket for Electric Vehicle, columnId=null, journalTitle=Automotive Engineer, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to reduce the weight and cost, the topology optimization method based on variable density method was used to carry out multi-objective topology optimization of the battery bracket. The optimization results show that the mass of the optimized battery bracket has been reduced by 16.7%, and the structural performance meets the design requirements, which has been verified through vehicle road tests. The optimization process shows that topology optimization provides a fast and effective solution for lightweight design of structures.
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为实现蓄电池支架的轻量化,采用变密度法构建拓扑优化模型,进行了蓄电池支架多目标拓扑优化。结果表明:优化后蓄电池支架质量减轻16.7%,结构性能满足设计要求,并顺利通过实车路试验证。优化过程表明,拓扑优化方法为结构轻量化设计提供了快速有效的解决方案。
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| 节点数量/个 | 单元数量/个 | 蓄电池质量/kg | 模型质量/kg |
| 46 538 | 44 774 | 15 | 17.78 |
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| 节点数量/个 | 单元数量/个 | 蓄电池质量/kg | 模型质量/kg |
| 46 538 | 44 774 | 15 | 17.78 |
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| 零件名称 | 材料名称 | 弹性模量/MPa | 泊松比 | 密度 /kg·m-3 |
| 蓄电池支架 | SS340Y410T | 210 000 | 0.3 | 7 850 |
| 铝合金横梁 | AL-6063-TA6 | 70 000 | 0.3 | 2 700 |
| 吊钩 | Steel | 210 000 | 0.3 | 7 850 |
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| 零件名称 | 材料名称 | 弹性模量/MPa | 泊松比 | 密度 /kg·m-3 |
| 蓄电池支架 | SS340Y410T | 210 000 | 0.3 | 7 850 |
| 铝合金横梁 | AL-6063-TA6 | 70 000 | 0.3 | 2 700 |
| 吊钩 | Steel | 210 000 | 0.3 | 7 850 |
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| 分析工况 | 载荷 |
| 加速工况 | X向 | 4 |
| 转向工况 | Y向 | 3 |
| 垂向工况 | Z向 | -6 |
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| 分析工况 | 载荷 |
| 加速工况 | X向 | 4 |
| 转向工况 | Y向 | 3 |
| 垂向工况 | Z向 | -6 |
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| 考察项 | 原方案 | 优化方案 | 变化率/% |
| 一阶约束模态/Hz | 43.12 | 42.56 | -1.3 |
静强度 分析最 大应力 /MPa | 加速工况 | 99.9 | 105.2 | +5.3 |
| 转向工况 | 33.3 | 34.1 | +2.4 |
| 垂向工况 | 55.2 | 58.8 | +6.5 |
| 质量/kg | 1.257 | 1.047 | -16.7 |
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优化前、后主要性能指标对比
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| 考察项 | 原方案 | 优化方案 | 变化率/% |
| 一阶约束模态/Hz | 43.12 | 42.56 | -1.3 |
静强度 分析最 大应力 /MPa | 加速工况 | 99.9 | 105.2 | +5.3 |
| 转向工况 | 33.3 | 34.1 | +2.4 |
| 垂向工况 | 55.2 | 58.8 | +6.5 |
| 质量/kg | 1.257 | 1.047 | -16.7 |
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