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In order to solve the problems of long development cycle, high design cost and easy fatigue damage of automotive bushings, the stiffness calculation and fatigue simulation simulation of the rear bushings of front suspension lower swing arm were carried out based on finite element software. Ogden, Mullins, and Thomas model parameters and initial crack size are obtained through the mechanical property test of rubber materials, and then the bushing is subjected to stiffness calculation and fatigue life simulation. Comparing the results of the bench test, it is found that the error of all-directional stiffness and fatigue life is less than 8%, and the location of the node where fatigue failure occurs is the same as the fatigue hotspot obtained from the calculation, which is similar to the location of the fatigue failure in the bench fatigue test, thus verifying the feasibility of the simulation.

, authors=Hua Yang, Lang Wu, authorsList=Hua Yang, Lang Wu, 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=1308463046632960762, articleId=1308463046284833528, tenantId=1146029695717560320, journalId=1189918454225211397, language=CN, title=车用橡胶衬套刚度与疲劳寿命有限元分析, columnId=0, journalTitle=汽车工程师, columnName=, runingTitle=null, highlight=null, articleAbstract=

为解决汽车衬套开发周期长、设计成本高和易疲劳损伤等问题,基于有限元软件对前悬架下摆臂后衬套进行刚度计算和疲劳寿命仿真。通过橡胶材料力学性能试验得到Ogden、Mullins、Thomas模型参数以及初始裂纹尺寸,然后对衬套进行刚度仿真计算和疲劳寿命模拟。对比台架试验结果发现,各向刚度和疲劳寿命仿真结果与试验结果相比误差均低于8%,且发生疲劳失效的节点位置与计算得到的疲劳热点位置相同,与台架疲劳试验失效位置相近,验证了仿真的可行性。

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车用橡胶衬套刚度与疲劳寿命有限元分析
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杨华 , 吴浪
汽车工程师 | 2026,(4): 41-48
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汽车工程师 | 2026 , (4) : 41 -48
车用橡胶衬套刚度与疲劳寿命有限元分析
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杨华, 吴浪
作者信息
  • 成都西菱动力科技股份有限公司,成都 611300
Finite Element Analysis of Stiffness and Fatigue of Automotive Rubber Bushings
Hua Yang, Lang Wu
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  • Chengdu Xiling Power Science & Technology Incorporated Company, Chengdu 611300
出版时间: 2026-04-15 doi: 10.20104/j.cnki.1674-6546.20240407
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为解决汽车衬套开发周期长、设计成本高和易疲劳损伤等问题,基于有限元软件对前悬架下摆臂后衬套进行刚度计算和疲劳寿命仿真。通过橡胶材料力学性能试验得到Ogden、Mullins、Thomas模型参数以及初始裂纹尺寸,然后对衬套进行刚度仿真计算和疲劳寿命模拟。对比台架试验结果发现,各向刚度和疲劳寿命仿真结果与试验结果相比误差均低于8%,且发生疲劳失效的节点位置与计算得到的疲劳热点位置相同,与台架疲劳试验失效位置相近,验证了仿真的可行性。

汽车衬套  /  橡胶  /  有限元仿真  /  刚度  /  疲劳

In order to solve the problems of long development cycle, high design cost and easy fatigue damage of automotive bushings, the stiffness calculation and fatigue simulation simulation of the rear bushings of front suspension lower swing arm were carried out based on finite element software. Ogden, Mullins, and Thomas model parameters and initial crack size are obtained through the mechanical property test of rubber materials, and then the bushing is subjected to stiffness calculation and fatigue life simulation. Comparing the results of the bench test, it is found that the error of all-directional stiffness and fatigue life is less than 8%, and the location of the node where fatigue failure occurs is the same as the fatigue hotspot obtained from the calculation, which is similar to the location of the fatigue failure in the bench fatigue test, thus verifying the feasibility of the simulation.

Automotive bushings  /  Rubber  /  Finite element simulation  /  Stiffness  /  Fatigue
杨华, 吴浪. 车用橡胶衬套刚度与疲劳寿命有限元分析. 汽车工程师, 2026 , (4) : 41 -48 . DOI: 10.20104/j.cnki.1674-6546.20240407
Hua Yang, Lang Wu. Finite Element Analysis of Stiffness and Fatigue of Automotive Rubber Bushings[J]. Automotive Engineer, 2026 , (4) : 41 -48 . DOI: 10.20104/j.cnki.1674-6546.20240407

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doi: 10.20104/j.cnki.1674-6546.20240407
  • 首发时间:2026-09-20
  • 出版时间:2026-04-15
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    成都西菱动力科技股份有限公司,成都 611300
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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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