Article(id=1217472510405296214, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1217472509256056911, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20230289, 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=1768197666026, onlineDateStr=2026-01-12, pubDate=1703001600000, pubDateStr=2023-12-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768197666026, onlineIssueDateStr=2026-01-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768197666026, creator=13701087609, updateTime=1768197666026, updator=13701087609, issue=Issue{id=1217472509256056911, tenantId=1146029695717560320, journalId=1189873562199433220, year='2023', volume='', issue='12', pageStart='1', pageEnd='66', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768197665752, creator=13701087609, updateTime=1768198265668, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1217475025536467895, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1217472509256056911, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1217475025536467896, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1217472509256056911, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=14, endPage=19, ext={EN=ArticleExt(id=1217472510594039897, articleId=1217472510405296214, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Weld Seam Fatigue Analysis of Suspension Control Arm Considering Interference Fit, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to evaluate the weld seam fatigue life of suspension control arm accurately, this paper conducted weld seam fatigue analysis considering the interference fit stress. The interference fit stress of the control arm calculated by theoretical calculation and Finite Element Method (FEM) was compared, the fatigue load was equivalent treated, the fatigue conditions were simplified into three simple conditions. The “VOLVO” fatigue analysis method of weld seam was introduced, the fatigue life of control arm weld seam was checked by this method. The analysis results are in good agreement with the results of bench test, the optimized scheme successfully passes the vehicle durability verification.
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为了准确地评估悬架控制臂的焊缝疲劳寿命,在考虑过盈装配应力基础上进行了焊缝疲劳分析。对比了理论计算和有限元方法计算的控制臂过盈装配应力,对耐久载荷进行了等效处理,将耐久工况简化为三个简单工况。介绍了“VOLVO”焊缝疲劳分析方法,使用该方法校核了控制臂焊缝疲劳寿命。分析结果与台架试验结果较为一致,优化方案顺利通过整车耐久验证。
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孔闯(1981—),男,学士学位,工程师,研究方向为底盘性能。
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孔闯(1981—),男,学士学位,工程师,研究方向为底盘性能。
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孔闯(1981—),男,学士学位,工程师,研究方向为底盘性能。
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| 应力计算对比 | 内筒应力/MPa | 外筒应力/MPa |
| 理论计算 | 357 | 220 |
| 有限元方法计算 | 384 | 216 |
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过盈配合应力计算对比
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| 应力计算对比 | 内筒应力/MPa | 外筒应力/MPa |
| 理论计算 | 357 | 220 |
| 有限元方法计算 | 384 | 216 |
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| 载荷工况 | 幅值/N | 平均值/N | 循环次数/次 |
| 工况1 | 8 422 | 4 970 | 3 400 |
| 工况2 | 2 637 | -1 057 | 57 700 |
| 工况3 | 1 446 | 134 | 38 900 |
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控制臂Block载荷
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| 载荷工况 | 幅值/N | 平均值/N | 循环次数/次 |
| 工况1 | 8 422 | 4 970 | 3 400 |
| 工况2 | 2 637 | -1 057 | 57 700 |
| 工况3 | 1 446 | 134 | 38 900 |
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| 寿命对比 | 壁厚 3.5 mm | 臂厚 4 mm | 壁厚 4.5 mm | 壁厚 5 mm |
| 仿真分析 | 1.1 | 6 | 12 | 25 |
| 台架试验 | 1.5 | 4 | 10 | 22、29 |
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各方案仿真与台架试验结果对比 万次
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| 寿命对比 | 壁厚 3.5 mm | 臂厚 4 mm | 壁厚 4.5 mm | 壁厚 5 mm |
| 仿真分析 | 1.1 | 6 | 12 | 25 |
| 台架试验 | 1.5 | 4 | 10 | 22、29 |
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