Article(id=1202253740536460274, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202253739831812559, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20220264, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764569228537, onlineDateStr=2025-12-01, pubDate=1681920000000, pubDateStr=2023-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764569228537, onlineIssueDateStr=2025-12-01, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764569228537, creator=13701087609, updateTime=1764569228537, updator=13701087609, issue=Issue{id=1202253739831812559, tenantId=1146029695717560320, journalId=1189873562199433220, year='2023', volume='', issue='4', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764569228370, creator=13701087609, updateTime=1764576277615, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1202283306583810311, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202253739831812559, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1202283306583810312, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202253739831812559, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=49, endPage=55, ext={EN=ArticleExt(id=1202253740716815348, articleId=1202253740536460274, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Research on Lightweight Solution of Steel-Aluminum Body for Heavy Duty Trucks, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Through the comparative study of different technical routes of aluminum alloy automotive body, this paper proposed the lightweight body solution of “profile frame + cover part” steel-aluminum hybrid heavy truck. Based on the body structure, the material selection, the joining process comparison study and solution formulation were completed, and the CAE software was used to simulate and analyze the modality, stiffness, fatigue and collision performance of the body and all performance indicators meet the product requirements. Compared with the original steel body, the steel and aluminum hybrid heavy duty truck body is 81.5 kg lighter (a decrease of 22.4%), which provides a reference for the subsequent lightweight design and manufacture of heavy duty truck body.
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通过对铝合金车身不同技术路线对比研究,提出“型材框架+覆盖件”钢铝混合重型载货汽车车身轻量化方案。基于该车身结构完成材料选用、连接工艺对比与方案制定,并采用CAE软件对该车身的模态、刚度、疲劳、碰撞性能进行仿真分析,各项性能指标均满足产品要求。该钢铝混合车身较原钢质车身质量降低81.5 kg,降幅22.4%,为后续重型载货汽车车身轻量化设计与制造提供参考。
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杨丽(1986—),女,工程师,学士学位,研究方向为汽车轻量化材料及连接工艺研究。
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杨丽(1986—),女,工程师,学士学位,研究方向为汽车轻量化材料及连接工艺研究。
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材料导报,
2020,
34(13): 13167-13174., articleTitle=铝与钢异种材料连接技术及其研究进展, refAbstract=null), Reference(id=1202253749474521403, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, doi=null, pmid=null, pmcid=null, year=2012, volume=null, issue=1, pageStart=5, pageEnd=9, url=null, language=null, rfNumber=[5], rfOrder=4, authorNames=邓超, journalName=汽车实用技术, refType=null, unstructuredReference=邓超. 某重型卡车白车身模态分析[J].
汽车实用技术,
2012(1): 5-9., articleTitle=某重型卡车白车身模态分析, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1202253742285484058, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, xref=null, ext=[AuthorCompanyExt(id=1202253742293872667, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, companyId=1202253742285484058, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Shaanxi Heavy Duty Truck Co., Ltd., Xi'an 710200), AuthorCompanyExt(id=1202253742298066972, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, companyId=1202253742285484058, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=陕西重型汽车有限公司,西安 710200)])], figs=[ArticleFig(id=1202253745854836906, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=EN, label=null, caption=null, figureFileSmall=uZKmG9VR+IU3DAjkHk6WLg==, figureFileBig=WSWuxr9wKoxS8jlPLd59YQ==, tableContent=null), ArticleFig(id=1202253745947111599, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=图1, caption=
钢铝混合重型载货汽车车身结构形式及材料分布, figureFileSmall=uZKmG9VR+IU3DAjkHk6WLg==, figureFileBig=WSWuxr9wKoxS8jlPLd59YQ==, tableContent=null), ArticleFig(id=1202253746165215420, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=EN, label=null, caption=null, figureFileSmall=pnmN7zpzBVJX9DUWK1SrEQ==, figureFileBig=rauHbsI8IdzQClmYJuF5pA==, tableContent=null), ArticleFig(id=1202253746295238855, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=图2, caption=
铝合金车门外板试制件, figureFileSmall=pnmN7zpzBVJX9DUWK1SrEQ==, figureFileBig=rauHbsI8IdzQClmYJuF5pA==, tableContent=null), ArticleFig(id=1202253746374930637, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=EN, label=null, caption=null, figureFileSmall=VS+qyawm+pWFnugZzc7lIw==, figureFileBig=Uf7gZeGLLMLTtl3sbHSiUg==, tableContent=null), ArticleFig(id=1202253746471399634, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=图3, caption=
一阶扭转自由模态分析振型, figureFileSmall=VS+qyawm+pWFnugZzc7lIw==, figureFileBig=Uf7gZeGLLMLTtl3sbHSiUg==, tableContent=null), ArticleFig(id=1202253746563674329, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=EN, label=null, caption=null, figureFileSmall=k90zUYirG5ENodeLi34yAw==, figureFileBig=Vn1ru7ma0d3205YKOOc5Bw==, tableContent=null), ArticleFig(id=1202253746655949020, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=图4, caption=
钢铝混合车身钢度分析, figureFileSmall=k90zUYirG5ENodeLi34yAw==, figureFileBig=Vn1ru7ma0d3205YKOOc5Bw==, tableContent=null), ArticleFig(id=1202253746735640801, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=EN, label=null, caption=null, figureFileSmall=1ZSmqoNx81m3fH7i5d355A==, figureFileBig=m3jcPRLWyoh+gQMIqfT2UA==, tableContent=null), ArticleFig(id=1202253746811138280, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=图5, caption=
疲劳分析振型, figureFileSmall=1ZSmqoNx81m3fH7i5d355A==, figureFileBig=m3jcPRLWyoh+gQMIqfT2UA==, tableContent=null), ArticleFig(id=1202253746886635757, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=EN, label=null, caption=null, figureFileSmall=S1bGuLl/q4b/qzBsZmRuSg==, figureFileBig=TSeQ01M60Ggr4mDhSxTorg==, tableContent=null), ArticleFig(id=1202253747004076274, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=图6, caption=
侵入量测量(变化), figureFileSmall=S1bGuLl/q4b/qzBsZmRuSg==, figureFileBig=TSeQ01M60Ggr4mDhSxTorg==, tableContent=null), ArticleFig(id=1202253747104739577, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=EN, label=null, caption=null, figureFileSmall=7cXvS5hFJQSyLX3SKM2gsg==, figureFileBig=ZQD3MUrkLC7g+sL6Ygi3HQ==, tableContent=null), ArticleFig(id=1202253748203647228, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=图7, caption=
钢铝混合车身和钢质车身不同部位吸能占比, figureFileSmall=7cXvS5hFJQSyLX3SKM2gsg==, figureFileBig=ZQD3MUrkLC7g+sL6Ygi3HQ==, tableContent=null), ArticleFig(id=1202253748308504831, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
材料 名称 | 热处理状态 | 弹性 模量/GPa | 泊松比 | 屈服 强度/MPa | 抗拉 强度/MPa | 延伸率/% |
| 6061 | T4 | 72 | 0.3 | ≥110 | ≥180 | ≥13 |
| 6061 | T6 | 72 | 0.3 | ≥240 | ≥260 | ≥7 |
), ArticleFig(id=1202253748388196610, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=表1, caption=
6061挤压铝合金材料属性
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材料 名称 | 热处理状态 | 弹性 模量/GPa | 泊松比 | 屈服 强度/MPa | 抗拉 强度/MPa | 延伸率/% |
| 6061 | T4 | 72 | 0.3 | ≥110 | ≥180 | ≥13 |
| 6061 | T6 | 72 | 0.3 | ≥240 | ≥260 | ≥7 |
), ArticleFig(id=1202253748501442826, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 类型 | 连接工艺 | 连接 材料 | 工艺特点 | 应用区域 | 设备单价 /万元 |
机械 连接 | 自冲铆接(SPR) | 铝-铝、 钢-铝 | 连接点力学性能高,抗疲劳性好;车身不同部位材料组合需采用多套铆模;底板材料延伸率需不低于8%,否则易开裂变形 | C型铆枪双面连接,适用车身大部分位置,钢-铝、多材料车身首选的连接工艺 | 70~100 |
| 热熔流钻铆接(FDS) | 铝-铝、 钢-铝 | 连接强度高,可拆卸,可连接板材与型材;正反面有较大凸起,应用部位受限,不可用于外观件,结构设计需考虑避让 | 单面连接,适用板材与型材/铸件等空腔部位 | 60~100 |
| 高强度抽芯铆接 | 铝-铝、 钢-铝 | 连接强度高、操作灵活,成本低,对被连接材料种类、组合结构等无特殊要求;需预先开孔,手动放钉,效率较低 | 单面连接,适用板材与型材和铸件等空腔部位,可替代FDS | 约2 |
| 焊接 | 铝点焊(RSW) | 铝-铝 | 设备通用性好,可用于外观件;设备能耗大,电极修磨频次高,工装需做防磁处理 | C型与X型焊钳双面连接,主要用于车门等薄板外观件连接 | 约40 |
| 熔化极惰性气体保护焊(MIG) | 铝-铝 | 焊接质量稳定可靠、效率高;焊接热输入较大,焊接热处理强化铝合金接头强度容易热衰减 | 车身型材骨架、前后防撞系统等型材之间焊接 | 约16 |
| 胶粘 | 胶铆复合 | 铝-铝、 钢-铝 | 应力分布均匀,抗振密封性好;易老化失效,高温固化易开裂,一般不单独用于车身连接 | 配合SPR、FDS等冷连接工艺用于车身连接,提高连接强度,防止异种材料界面电化学腐蚀 | 约30 |
), ArticleFig(id=1202253748597911822, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=表2, caption=
钢铝混合车身常用连接工艺对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类型 | 连接工艺 | 连接 材料 | 工艺特点 | 应用区域 | 设备单价 /万元 |
机械 连接 | 自冲铆接(SPR) | 铝-铝、 钢-铝 | 连接点力学性能高,抗疲劳性好;车身不同部位材料组合需采用多套铆模;底板材料延伸率需不低于8%,否则易开裂变形 | C型铆枪双面连接,适用车身大部分位置,钢-铝、多材料车身首选的连接工艺 | 70~100 |
| 热熔流钻铆接(FDS) | 铝-铝、 钢-铝 | 连接强度高,可拆卸,可连接板材与型材;正反面有较大凸起,应用部位受限,不可用于外观件,结构设计需考虑避让 | 单面连接,适用板材与型材/铸件等空腔部位 | 60~100 |
| 高强度抽芯铆接 | 铝-铝、 钢-铝 | 连接强度高、操作灵活,成本低,对被连接材料种类、组合结构等无特殊要求;需预先开孔,手动放钉,效率较低 | 单面连接,适用板材与型材和铸件等空腔部位,可替代FDS | 约2 |
| 焊接 | 铝点焊(RSW) | 铝-铝 | 设备通用性好,可用于外观件;设备能耗大,电极修磨频次高,工装需做防磁处理 | C型与X型焊钳双面连接,主要用于车门等薄板外观件连接 | 约40 |
| 熔化极惰性气体保护焊(MIG) | 铝-铝 | 焊接质量稳定可靠、效率高;焊接热输入较大,焊接热处理强化铝合金接头强度容易热衰减 | 车身型材骨架、前后防撞系统等型材之间焊接 | 约16 |
| 胶粘 | 胶铆复合 | 铝-铝、 钢-铝 | 应力分布均匀,抗振密封性好;易老化失效,高温固化易开裂,一般不单独用于车身连接 | 配合SPR、FDS等冷连接工艺用于车身连接,提高连接强度,防止异种材料界面电化学腐蚀 | 约30 |
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| 分析项目 | 钢质方案 | 钢铝混合新方案 |
| 扭转刚度/N·m·(°)-1 | 43 150.5 | 57 423.5 |
| 弯曲刚度/N·m-1 | 左纵梁 | 6 814.5 | 9 007.4 |
| 右纵梁 | 6 814.5 | 8 909.1 |
| 弯曲刚度/N·m-1 | 左纵梁 | 8 419.2 | 8 419.2 |
| 右纵梁 | 8 597.2 | 8 166.7 |
), ArticleFig(id=1202253748786655512, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=表3, caption=
刚度计算结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分析项目 | 钢质方案 | 钢铝混合新方案 |
| 扭转刚度/N·m·(°)-1 | 43 150.5 | 57 423.5 |
| 弯曲刚度/N·m-1 | 左纵梁 | 6 814.5 | 9 007.4 |
| 右纵梁 | 6 814.5 | 8 909.1 |
| 弯曲刚度/N·m-1 | 左纵梁 | 8 419.2 | 8 419.2 |
| 右纵梁 | 8 597.2 | 8 166.7 |
), ArticleFig(id=1202253748874735902, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 位置 | 扭转疲劳 | 振动疲劳 |
| 最小疲劳周次/次 | 最小疲劳周次位置 | 最小疲劳周次/次 | 最小疲劳周次位置 |
| 前围 | 1.3×106 | 前围与A柱接合处 | 3.60×107 | 前围组合踏板安装拐角钢铝接合处 |
| 侧围 | 2.0×106 | A柱与前围横梁接合处 | 8.01×106 | A柱外板靠近车门下铰链处 |
| 顶盖 | 3.6×106 | 顶盖侧边靠近A柱处 | 5.55×107 | 顶盖外板靠近导流罩前安装点处 |
| 地板 | 2.6×103 | 后悬安装点区域 | 1.01×103 | 后悬安装点 区域 |
| 后围 | 6.7×109 | 纵梁与后围下接合处 | 8.12×106 | 纵梁与后围下接合处 |
), ArticleFig(id=1202253748979593507, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202253740536460274, language=CN, label=表4, caption=
扭转分析最小疲劳周次及风险位置
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| 位置 | 扭转疲劳 | 振动疲劳 |
| 最小疲劳周次/次 | 最小疲劳周次位置 | 最小疲劳周次/次 | 最小疲劳周次位置 |
| 前围 | 1.3×106 | 前围与A柱接合处 | 3.60×107 | 前围组合踏板安装拐角钢铝接合处 |
| 侧围 | 2.0×106 | A柱与前围横梁接合处 | 8.01×106 | A柱外板靠近车门下铰链处 |
| 顶盖 | 3.6×106 | 顶盖侧边靠近A柱处 | 5.55×107 | 顶盖外板靠近导流罩前安装点处 |
| 地板 | 2.6×103 | 后悬安装点区域 | 1.01×103 | 后悬安装点 区域 |
| 后围 | 6.7×109 | 纵梁与后围下接合处 | 8.12×106 | 纵梁与后围下接合处 |
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