Article(id=1209856843212518124, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1209856841199252183, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20230117, 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=1766381949475, onlineDateStr=2025-12-22, pubDate=1710864000000, pubDateStr=2024-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766381949475, onlineIssueDateStr=2025-12-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766381949475, creator=13701087609, updateTime=1766381949475, updator=13701087609, issue=Issue{id=1209856841199252183, tenantId=1146029695717560320, journalId=1189873562199433220, year='2024', volume='', issue='3', 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=1766381948995, creator=13701087609, updateTime=1766381948995, updator=13701087609, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=11, endPage=15, ext={EN=ArticleExt(id=1209856843837469429, articleId=1209856843212518124, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Application of One-Step Forming in Crash Simulation of Automobile Seat, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To guide the design of car seats and save development time, this paper studied the effects of residual stress and plastic deformation generated after sheet metal parts stamping on the crash simulation of car seat based on one-step stamping, and investigated the automatic processing method of stamping process. Stamping simulation of sheet metal parts was conducted through the Radioss_One_Step module of Altair HyperWorks software. The program was optimized by TCL/TK and Python language, to achieve the automatic batch processing of stamping simulation of all sheet metal parts of seat, meanwhile, the stamping results was automatically mapped to crash model. This paper took the driver’s seat of a vehicle as research object to perform crash simulation and physical test of the 50th percentile male dummy. It is found that the rear impact simulation with the stamping results is closer to the physical test, the simulation is more accurate. Moreover, the optimized batch program can save more than 90% of the working time.
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为指导座椅设计、降低开发工时,基于一步法冲压映射研究了钣金件冲压后产生的残余应变、塑性变形对汽车座椅碰撞仿真结果的影响,研究冲压映射过程的自动化处理方法。通过Altair HyperWorks软件的Radioss_One_Step模块模拟钣金件冲压;利用Tcl/Tk以及Python语言优化编程,实现座椅全部钣金件冲压模拟的自动化批量处理,并将冲压结果自动映射至碰撞模型;以某车型驾驶员座椅为研究对象,进行第50百分位男性假人后撞仿真与物理试验的对比分析。研究发现:带有冲压映射结果的仿真分析更接近物理试验,仿真更加精确,与手动处理相比,采用优化的批处理程序降低工时90%以上。
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沈婷婷(1988—),女,工程师,硕士学位,研究方向为汽车座椅/内饰产品仿真分析。
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沈婷婷(1988—),女,工程师,硕士学位,研究方向为汽车座椅/内饰产品仿真分析。
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沈婷婷(1988—),女,工程师,硕士学位,研究方向为汽车座椅/内饰产品仿真分析。
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某项目驾驶员座椅第50百分位假人后撞试验, figureFileSmall=XIjpU+BIjkK5sj7re4s7kw==, figureFileBig=lTpFMu5I5zJqXlIlBImRCw==, tableContent=null), ArticleFig(id=1209873371324609067, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1209856843212518124, language=EN, label=null, caption=null, figureFileSmall=xQTsr7J3peCHpbLCOGAMYQ==, figureFileBig=QEZ91qpjdrokZqraWQjUPQ==, tableContent=null), ArticleFig(id=1209873371437855277, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1209856843212518124, language=CN, label=图6, caption=
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| 项目 | 手动处理用时 | 自动化处理用时 |
| 简化模型 | 491 | 42 |
| 获取冲压角度信息 | 410 | 20 |
| 求解计算 | 6 560 | 480 |
| 总计 | 7 461 | 542 |
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手动处理与自动化处理工时对比 s
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| 项目 | 手动处理用时 | 自动化处理用时 |
| 简化模型 | 491 | 42 |
| 获取冲压角度信息 | 410 | 20 |
| 求解计算 | 6 560 | 480 |
| 总计 | 7 461 | 542 |
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| 项目 | 内容 |
座椅位置 (高度/前后/头枕) | 中间/最前位置向后 100 mm/最低锁止 |
| 试验假人 | Hybrid III型第50百分位男性假人 |
| 最大撞击加速度/g | 21.36 |
| 最大撞击速度/km·h-1 | 35.37 |
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某项目驾驶员座椅后撞试验信息
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| 项目 | 内容 |
座椅位置 (高度/前后/头枕) | 中间/最前位置向后 100 mm/最低锁止 |
| 试验假人 | Hybrid III型第50百分位男性假人 |
| 最大撞击加速度/g | 21.36 |
| 最大撞击速度/km·h-1 | 35.37 |
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| 项目 | 内容 |
| 节点数量/个 | 318 359 |
| 单元数量/个 | 559 408 |
| 假人类型 | H350 |
| 前处理器 | HyperMesh |
| 求解器 | LS-DYNA |
), ArticleFig(id=1209873372272521812, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1209856843212518124, language=CN, label=表3, caption=
驾驶员座椅第50百分位假人后撞模型信息
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| 项目 | 内容 |
| 节点数量/个 | 318 359 |
| 单元数量/个 | 559 408 |
| 假人类型 | H350 |
| 前处理器 | HyperMesh |
| 求解器 | LS-DYNA |
), ArticleFig(id=1209873372373185114, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1209856843212518124, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验类型 | 座椅靠背最大动态偏角-左侧/(°) | 座椅靠背最大动态偏角-右侧/(°) | 与物理试验接近度/% |
| 物理试验 | 23.54 | 19.6 | 左侧 | 右侧 |
| 仿真分析 | 不带冲压映射结果 | 26.54 | 22.23 | 87.2 | 86.6 |
| 带有冲压映射结果 | 24.38 | 21.11 | 96.4 | 92.3 |
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仿真分析结果与物理试验结果对比
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| 试验类型 | 座椅靠背最大动态偏角-左侧/(°) | 座椅靠背最大动态偏角-右侧/(°) | 与物理试验接近度/% |
| 物理试验 | 23.54 | 19.6 | 左侧 | 右侧 |
| 仿真分析 | 不带冲压映射结果 | 26.54 | 22.23 | 87.2 | 86.6 |
| 带有冲压映射结果 | 24.38 | 21.11 | 96.4 | 92.3 |
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| 序号 | 手动处理用时 /min | 批处理技术用时 /min | 降低工时/% |
| 1 | 124.35 | 9.03 | 92.7 |
| 2 | 105.6 | 8.8 | 91.7 |
| 3 | 125.5 | 10.5 | 91.6 |
| 4 | 153.8 | 15.2 | 90.1 |
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工时统计
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| 序号 | 手动处理用时 /min | 批处理技术用时 /min | 降低工时/% |
| 1 | 124.35 | 9.03 | 92.7 |
| 2 | 105.6 | 8.8 | 91.7 |
| 3 | 125.5 | 10.5 | 91.6 |
| 4 | 153.8 | 15.2 | 90.1 |
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