Article(id=1309639484715659340, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1309639482152943959, articleNumber=null, orderNo=null, doi=10.19822/j.cnki.1671-6329.20250029, 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=1790171985080, onlineDateStr=2026-09-23, pubDate=1783180800000, pubDateStr=2026-07-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790171985080, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790171985080, creator=13701087609, updateTime=1790171985080, updator=13701087609, issue=Issue{id=1309639482152943959, tenantId=1146029695717560320, journalId=1189645257101713411, year='2026', volume='', issue='7', pageStart='1', pageEnd='62', issueExtLink='null', onlineDate='null', pubDate='1783180800000', pubDateStr='2026-07-05', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790171984469, creator='13701087609', updateTime=1790233653216, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309898139683877588, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1309639482152943959, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309898139683877589, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1309639482152943959, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=18, endPage=22, ext={EN=ArticleExt(id=1309639486494044237, articleId=1309639484715659340, tenantId=1146029695717560320, journalId=1189645257101713411, language=EN, title=Research on Equivalent Torsional Stiffness Analysis and Optimization Method for Passenger Cars, columnId=null, journalTitle=Automotive Digest, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To accurately evaluate and optimize the structural performance of the Body-in-White (BIW), this study focuses on a passenger car BIW by conducting equivalent torsional stiffness analysis and structural improvement research. Based on the pre-processing software ANSA and the finite element solver Nastran, a high-precision finite element model of the BIW is established in accordance with finite element theory. The equivalent torsion analysis method is employed to obtain the dynamic response curve of the BIW's equivalent torsional stiffness. Subsequently, structural weak areas are identified, and targeted reinforcement schemes are proposed accordingly. Simulation verification results show that the proposed reinforcement scheme significantly enhances the torsional stiffness of the BIW, and the optimized dynamic curve of equivalent torsional stiffness is markedly improved. The proposed method effectively guides the structural design and optimization of the BIW, providing a reliable theoretical basis and technical support for improving the NVH performance and ride comfort of the vehicle.

, authors=Depeng Shi, Zhiguo Wu, Guohui Deng, Dongyan Niu, authorsList=Depeng Shi, Zhiguo Wu, Guohui Deng, Dongyan Niu, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1309639486712148046, articleId=1309639484715659340, tenantId=1146029695717560320, journalId=1189645257101713411, language=CN, title=乘用车等效扭转刚度分析及优化方法研究, columnId=0, journalTitle=汽车文摘, columnName=, runingTitle=null, highlight=null, articleAbstract=

为了精准评估并优化白车身的结构性能,以乘用车白车身为研究对象,开展等效扭转刚度分析及结构改进研究。基于前处理软件与有限元求解器,依据有限元分析理论建立了高精度的白车身有限元模型;采用等效扭转分析方法,获取了白车身的等效扭转刚度动态响应曲线,并据此识别出结构薄弱区域,针对性地提出了加强方案。仿真验证结果表明,通过实施天窗加强框、C环下拐角及横梁优化等低成本措施,白车身等效扭转刚度提升了3 225 N·m/(°),同时质量仅增加2198 g,实现了刚度与轻量化的有效平衡。该方法能有效指导白车身结构设计与优化,为提升整车的NVH性能与驾乘舒适性提供了理论依据与技术支持。

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乘用车等效扭转刚度分析及优化方法研究
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石德鹏 , 吴志国 , 邓国辉 , 牛冬妍
汽车文摘 | 2026,(7): 18-22
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汽车文摘 | 2026 , (7) : 18 -22
乘用车等效扭转刚度分析及优化方法研究
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石德鹏, 吴志国, 邓国辉, 牛冬妍
作者信息
  • 一汽-大众汽车有限公司,长春 130011
Research on Equivalent Torsional Stiffness Analysis and Optimization Method for Passenger Cars
Depeng Shi, Zhiguo Wu, Guohui Deng, Dongyan Niu
Affiliations
  • FAW-Volkswagen Automobile Co., Ltd., Changchun 130011
出版时间: 2026-07-05 doi: 10.19822/j.cnki.1671-6329.20250029
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为了精准评估并优化白车身的结构性能,以乘用车白车身为研究对象,开展等效扭转刚度分析及结构改进研究。基于前处理软件与有限元求解器,依据有限元分析理论建立了高精度的白车身有限元模型;采用等效扭转分析方法,获取了白车身的等效扭转刚度动态响应曲线,并据此识别出结构薄弱区域,针对性地提出了加强方案。仿真验证结果表明,通过实施天窗加强框、C环下拐角及横梁优化等低成本措施,白车身等效扭转刚度提升了3 225 N·m/(°),同时质量仅增加2198 g,实现了刚度与轻量化的有效平衡。该方法能有效指导白车身结构设计与优化,为提升整车的NVH性能与驾乘舒适性提供了理论依据与技术支持。

等效扭转刚度  /  白车身  /  能量密度  /  结构优化

To accurately evaluate and optimize the structural performance of the Body-in-White (BIW), this study focuses on a passenger car BIW by conducting equivalent torsional stiffness analysis and structural improvement research. Based on the pre-processing software ANSA and the finite element solver Nastran, a high-precision finite element model of the BIW is established in accordance with finite element theory. The equivalent torsion analysis method is employed to obtain the dynamic response curve of the BIW's equivalent torsional stiffness. Subsequently, structural weak areas are identified, and targeted reinforcement schemes are proposed accordingly. Simulation verification results show that the proposed reinforcement scheme significantly enhances the torsional stiffness of the BIW, and the optimized dynamic curve of equivalent torsional stiffness is markedly improved. The proposed method effectively guides the structural design and optimization of the BIW, providing a reliable theoretical basis and technical support for improving the NVH performance and ride comfort of the vehicle.

Equivalent torsional stiffness  /  Body in White (BIW)  /  Energy destiny  /  Structural optimization
石德鹏, 吴志国, 邓国辉, 牛冬妍. 乘用车等效扭转刚度分析及优化方法研究. 汽车文摘, 2026 , (7) : 18 -22 . DOI: 10.19822/j.cnki.1671-6329.20250029
Depeng Shi, Zhiguo Wu, Guohui Deng, Dongyan Niu. Research on Equivalent Torsional Stiffness Analysis and Optimization Method for Passenger Cars[J]. Automotive Digest, 2026 , (7) : 18 -22 . DOI: 10.19822/j.cnki.1671-6329.20250029

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doi: 10.19822/j.cnki.1671-6329.20250029
  • 首发时间:2026-09-23
  • 出版时间:2026-07-05
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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