基于DOE和CAE技术的橡胶悬置静刚度分析和疲劳寿命预测  

Static Stiffness Analysis and Fatigue Life Prediction of Rubber Suspension Based on DOE and CAE Technologies

作　　者：戴建辉 宋崇智 王龙玉 DAI Jian-hui;SONG Chong-zhi;WANG Long-yu(School of Mechanical Engineering,Anhui University of Technology,Maanshan Anhui 243002;School of Mechanical Engineering,Chaohu University,Chaohu Anhui 238024;Anhui Tuosheng Auto Parts Co.,Ltd.Guangde Anhui 242200)

机构地区：[1]安徽工业大学机械工程学院,安徽马鞍山243002 [2]巢湖学院机械工程学院,安徽巢湖238024 [3]安徽拓盛汽车零部件有限公司,安徽广德242200

出　　处：《巢湖学院学报》2023年第6期117-122,共6页Journal of Chaohu University

基　　金：巢湖学院学科建设质量提升工程项目(项目编号:kj22zkfp01);安徽省高校自然科学研究重大项目(项目编号:2023AH040300)。

摘　　要：针对动力总成橡胶悬置前期主簧设计阶段,不能快速确定所需静刚度下的悬置主簧参数以及考虑使其疲劳寿命提高的问题,提出了一种利用田口设计和有限元分析的方法,利用Minitab做橡胶悬置参数间的正交实验设计,在ABAQUS中建立有限元模型,对悬置的垂向(V向)静刚度进行分析,以满足悬置设定目标刚度的条件下,提高疲劳寿命次数的目标。通过回归分析,得到垂向静刚度、疲劳寿命与各参数之间的关系,并建立刚度与疲劳寿命的响应函数,使用响应优化器,得到主簧的参数,通过有限元分析,得到在误差允许的静刚度范围内,悬置的疲劳寿命提高了62.76%,对后续橡胶悬置前期设计开发提供参考。This paper addresses the issue of not being able to quickly determine the parameters of the main spring under the required static stiffness during the early design stage of the rubber suspension of the powertrain,and improving its fatigue life.A method using Taguchi design and finite element analysis is proposed.Orthogonal experimental design of rubber suspension parameters is conducted using Minitab,and a finite element model is established in ABAQUS to analyze the vertical(V-direction)static stiffness of the suspension.The goal is to improve the number of fatigue lives under the condition of meeting the set target stiffness of the suspension.Through regression analysis,the relationship between vertical static stiffness,fatigue life,and various parameters is obtained,and the response function of stiffness and fatigue life is established.Using the response optimizer,the parameters of the main spring are obtained.Through finite element analysis,it is found that the fatigue life of the suspension has increased by 62.76%within the allowable range of static stiffness,providing a reference for the early design and development of rubber suspensions.

关 键 词：橡胶悬置 正交试验 有限元分析 静刚度 疲劳寿命 

分 类 号：TQ332[化学工程—橡胶工业] U463.33[机械工程—车辆工程]