Article(id=1190284221391405564, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1190291572731253087, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20250095, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1761715472790, onlineDateStr=2025-10-29, pubDate=1755619200000, pubDateStr=2025-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761717226661, onlineIssueDateStr=2025-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=1761715472790, onlineFirstDateStr=2025-10-29, sourceXml=null, magXml=null, createTime=1761715472790, creator=13701087609, updateTime=1761715472790, updator=13701087609, issue=Issue{id=1190291572731253087, tenantId=1146029695717560320, journalId=1189873562199433220, year='2025', volume='', issue='8', 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=1761717225486, creator=13701087609, updateTime=1761717904141, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1190294419279545214, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1190291572731253087, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1190294419279545215, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1190291572731253087, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=24, endPage=29, ext={EN=ArticleExt(id=1190284221542400512, articleId=1190284221391405564, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Numerical Simulation and Research on Air Reservoir for Air Suspension, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=
This study systematically investigates the pressure-bearing capacity and failure mechanism of air suspension reservoirs through numerical simulation, burst testing, and theoretical calculation. Based on nonlinear material constitutive relations, numerical simulations reveal that when the cylinder wall thickness increases to 2.3 mm, the maximum equivalent plastic strain reaches 6%, demonstrating sufficient strength to withstand the design pressure of 6 MPa. Burst tests show the actual pressure-bearing of the 2.3 mm thick reservoir reaches 7.29 MPa, with failure consistently occurring at the nozzle-joint area, correlating perfectly with high-stress zones identified in simulations. Fracture surfaces exhibit continuous tearing morphology, confirming typical ductile fracture characteristics. Comparative theoretical calculation indicates the mean diameter formula achieves merely 2.2% deviation from experimental results, significantly outperforming the Faupel formula, thus validating its superiority for burst pressure prediction in thin-walled reservoirs.
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通过数值模拟、爆破试验及理论计算,系统研究了空气悬架储气罐的承压性能与失效机理,基于非线性材料本构关系,模拟发现筒体壁厚增至2.3 mm时最大等效应变为6%,可承载6 MPa设计压力。爆破试验显示,2.3 mm壁厚储气罐实际承压达7.29 MPa,失效位置集中于气嘴接头区域,与仿真高应力区一致,断口呈现连续撕裂状形貌,为典型韧性断裂。理论计算对比表明,中径公式计算结果与试验值(7.29 MPa)偏差仅2.2%,优于Faupel公式,表明薄壁储气罐宜采用中径公式进行爆破压力估算。
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何竹平(1971—),男,中级工程师,学士学位,主要研究方向为汽车零部件开发与制造。
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何竹平(1971—),男,中级工程师,学士学位,主要研究方向为汽车零部件开发与制造。
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零件 名称 | 材料 牌号 | 弹性 模量 /MPa | 泊松比 | 抗拉 强度 /MPa | 屈服 强度 /MPa | 延伸率 /% | 壁厚 /mm |
| 筒体 | 6061-T6 | 72 500 | 0.33 | 260 | 240 | 7 | 2.3 |
| 支架 | 5754-H22 | 72 500 | 0.33 | 220~270 | 130 | 10 | 2.5 |
进气 接头 | 6061-T6 | 72 500 | 0.33 | 260 | 240 | 7 | |
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零件材料及性能参数
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零件 名称 | 材料 牌号 | 弹性 模量 /MPa | 泊松比 | 抗拉 强度 /MPa | 屈服 强度 /MPa | 延伸率 /% | 壁厚 /mm |
| 筒体 | 6061-T6 | 72 500 | 0.33 | 260 | 240 | 7 | 2.3 |
| 支架 | 5754-H22 | 72 500 | 0.33 | 220~270 | 130 | 10 | 2.5 |
进气 接头 | 6061-T6 | 72 500 | 0.33 | 260 | 240 | 7 | |
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