基于ABAQUS的轻卡动力总成悬置系统强度分析与方法研究  

Strength Analysis and Method Research of Light Truck Powertrain Mounting System Based on ABAQUS

作　　者：赖余东 吴和兴 LAI Yu-dong;WU He-xing(Product Development Center,Jiangling Motors Co.,Ltd,Nanchang Jiangxi 330052,China)

机构地区：[1]江铃汽车股份有限公司产品研发中心,江西南昌330052

出　　处：《机械研究与应用》2022年第4期129-131,135,共4页Mechanical Research & Application

摘　　要：以某轻卡动力总成橡胶悬置系统为例,提出基于有限元的整体式分析方法,开展动力总成悬置系统的强度校核研究。基于ABAQUS软件建立考虑非线性的悬置系统整体式分析模型,采用Mooney-Rivlin本构模型表征橡胶的力学行为,校核悬置金属骨架强度。结果表明,该悬置主动端在极限工况下最大等效塑性应变达到0.025,存在开裂风险,更换材料后,零件满足评价标准且通过了实车道路耐久试验。说明整体式分析方法能够再现设定工况下的悬置系统各零件的相对运动关系,所得分析结果精度高,能够为悬置系统的强度设计提供参考。Taking the rubber mounting system of a light truck powertrain as an example,an integral analysis method based on finite element is proposed to carry out the strength check of the powertrain mounting system.Based on the ABAQUS software,an integral analysis model of mounting system considering nonlinearity is established;and the Mooney-Rivlin constitutive model is used to characterize the mechanical behavior of rubber and check the strength of mounting metal skeleton.The results show that the maximum equivalent plastic strain of the active end of the suspension reaches 0.025 under the extreme setting conditions,and there is a risk of cracking.After replacing the material,the parts meet the evaluation criteria and pass the road durability test of the real vehicle.It shows that the integral analysis method can reproduce the relative motion relationship of various parts of the mounting system under the setting conditions,and the analysis results have high accuracy,which can provide an effective reference for the strength design of the mounting system.

关 键 词：整体式分析方法 橡胶悬置 有限元 强度校核 

分 类 号：U462.3[机械工程—车辆工程]