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

作　　者：孔令洋 KONG Lingyang(Evergrande Hengchi New Energy Vehicle Research Institute(Shanghai)Co.,Ltd,Shanghai 201600,China)

机构地区：[1]恒大恒驰新能源汽车研究院(上海)有限公司,上海201600

出　　处：《橡胶工业》2024年第6期438-443,共6页China Rubber Industry

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。Based on the 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 the 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 the tire envelope and surrounding components was conducted.The fatigue test of the rubber components of the 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.The influence of the rubber component fatigue failure on the suspension motion and tire envelope was analyzed,which provided guidance for the tire selection in the early design of the vehicle,thereby optimizing the vehicle shape,shortening the vehicle development cycle and reducing the R&D cost.

关 键 词：橡胶元件 力学模型 疲劳失效 悬架运动 轮胎包络 

分 类 号：TQ336.4[化学工程—橡胶工业]