橡胶元件疲劳失效对悬架运动与轮胎包络的影响 |
Influence of Rubber Component Fatigue Failure on Suspension Motion and Tire Envelope |
投稿时间:2022-10-16 修订日期:2022-10-16 |
DOI:10.12136/j.issn.1000-890X.2024.06.0438 |
中文关键词: 橡胶元件 力学模型 疲劳失效 悬架运动 轮胎包络 |
英文关键词: rubber component mechanical model fatigue failure suspension motion tire envelope |
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中文摘要: |
基于橡胶元件的力学模型和受力分析以及橡胶元件的疲劳失效判定准则,得出橡胶元件疲劳失效后对汽车悬架系统上下跳行程的影响。建立某车型前独立悬架系统数字化电子样车(DMU)模型,通过仿真生成轮胎包络,进行轮胎包络与周边零部件的间隙校核;对前悬架系统橡胶元件进行疲劳试验,通过测算静刚度损失率,得出橡胶元件疲劳失效后的位移增大值和悬架系统的上下跳极限行程增大值。分析橡胶元件疲劳失效对悬架运动与轮胎包络的影响,为整车前期设计轮胎选型提供指导依据,从而达到优化整车造型、缩短整车开发周期和降低研发成本的目的。 |
英文摘要: |
Based on mechanical model and force analysis and fatigue failure criteria of the rubber components,the influence of the rubber component fatigue failure on the jump up and down stroke of the suspension system of vehicle was obtained.The Digital Mock-Up(DMU) model for the front independent suspension system of a certain vehicle was established,and the tire envelope was generated through simulation,then the clearance check between tire envelope and surrounding was conducted.Fatigue test of the rubber component of front suspension system was carried out,and the displacement increase value of the rubber components and the increase value of the jump up and down stroke of the suspension system after fatigue failure were obtained by calculating the loss rate of static stiffness.Analyzing the influence of the rubber component fatigue failure on suspension motion and tire envelope provided guidance for tire selection in the early design of vehicle,so that it could optimize the vehicle shape,shorten the vehicle development cycle and reduce the R&D cost. |
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