轴箱定位节点有限元分析及试验研究
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摘要
以国内某一高速动车组转向架用轴箱定位节点为研究对象,基于橡胶材料试样的单轴拉伸、双轴拉伸、平面剪切等试验数据拟合出材料模型常数,分别选取Mooney-Rivlin与Ogden橡胶材料本构模型进行有限元计算;基于有限元分析软件Abaqus对轴箱定位节点的径向刚度及轴向刚度进行仿真计算,并通过试验的方式论证有限元计算结果的准确性.根据有限元计算的结果与试验结果的对比得到:对于径向刚度,由于变形较小,通过Mooney-Rivlin与Ogden模型计算得到的结果与试验值均较接近,误差在3%左右;对于轴向刚度,变形稍大,通过Ogden模型计算得到的结果与试验值更加接近.
Taking the axle box positioning joint of a high-speed EMU bogie as the research object,the material model constant is fitted based on the test data of uniaxial tension,biaxial tension and plane shear of rubber material samples,and the Mooney-Rivlin and Ogden rubber material constitutive models are selected for finite element simulation respectively.Based on the finite element analysis software Abaqus,the radial stiffness and axial stiffness of the axle box positioningjoint are simulated and calculated,and the accuracy of the finite element calculation results is demonstrated by the test.According to the comparison between finite element calculation and experimental results,we get the result:for radial stiffness,because of small deformation,the error between the calculated results by Mooney-Rivlin and Ogden model is about 3% compared with the experimental values,and for axial stiffness,the deformation is slightly larger,and the calculated results by Ogden model are more in the same with the experimental values.
Taking the axle box positioning joint of a high-speed EMU bogie as the research object,the material model constant is fitted based on the test data of uniaxial tension,biaxial tension and plane shear of rubber material samples,and the Mooney-Rivlin and Ogden rubber material constitutive models are selected for finite element simulation respectively.Based on the finite element analysis software Abaqus,the radial stiffness and axial stiffness of the axle box positioningjoint are simulated and calculated,and the accuracy of the finite element calculation results is demonstrated by the test.According to the comparison between finite element calculation and experimental results,we get the result:for radial stiffness,because of small deformation,the error between the calculated results by Mooney-Rivlin and Ogden model is about 3% compared with the experimental values,and for axial stiffness,the deformation is slightly larger,and the calculated results by Ogden model are more in the same with the experimental values.
引文
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[2]魏来,曾京,邬平波,等.基于轮对模型的铁道车辆脱轨安全性评估[J].铁道学报,2015,37(9):25-31.WEI Lai,ZENG Jing,WU Pingbo,et al.Derailment safety evaluation for railway vehicles based on wheelset model[J].Journal of the China Railway Society,2015,37(9):25-31.(in Chinese)
[3]王鑫,吴智强,吴绍利,等.转向架轴箱橡胶节点疲劳寿命的有限元分析[J].铁道机车车辆,2014,34(2):51-54.WANG Xin,WU Zhiqiang,WU Shaoli,et al.The finite element analysis of fatigue life of the bogie rubber joint[J].Railway Locomotive&Car,2014,34(2):51-54.(in Chinese)
[4]李仕林.轴箱定位节点刚度和强度校核[J].技术与市场,2017,24(8):13-15.LI Shilin.Stiffness and strength checking of axle box positioning joint[J].Technology and Market,2017,24(8):13-15.(in Chinese)
[5]李响,任尊松,徐宁.基于转向架悬挂参数与踏面锥度优化的高速车辆动力学性能分析[J].铁道学报,2018,40(3):39-44.LI Xiang,REN Zunsong,XU Ning.Dynamic performance analysis of high-speed vehicle based on optimization of bogie suspension parameters and tread conicity[J].Jourmal of the China Railway Society,2018,40(3):39-44.(in Chinese)
[6]文孝霞,杜子学,许舟洲,等.基于降低走行轮偏磨损的单轨车辆结构参数优化研究[J].现代制造工程,2016(12):9-15.WEN Xiaoxia,DU Zixue,XU Zhouzhou,et al.Influence research of structural parameters on running wheel shoulder wear of the monorail vehicle[J].Modern Manufacturing Engineering,2016(12):9-15.(in Chinese)
[7]彭立群,林达文,李心,等.机车车辆用金属橡胶关节试验研究[J].机车电传动,2012(5):90-92.PENG Liqun,LIN Dawen,LI Xin,et al.Metal-rubber bushing test research for railway vehicle[J].Electric Drive for Locomotives,2012(5):90-92.(in Chinese)
[8]刘文生,李文.牵引电机传动装置振动特性仿真分析[J].铁道学报,2013,35(8):44-47.LIU Wensheng,LI Wen.Simulation analysis on vibration characteristics of traction motor transmission device[J].Journal of the China Railway Society,2013,35(8):44-47.(in Chinese)
[9]王旭,彭畅,张宝安,等.橡胶节点对全主动液压减振器的影响[J].液压与气动,2017(11):36-40.WANG Xu,PENG Chang,ZHANG Baoan,et al.Influence of rubber joint on active hydraulic shock absorber[J].Chinese Hydraulics and Pneumatics,2017(11):36-40.(in Chinese)
[10]MARS M V,FATEMI A.A literature survey on fatigue analysis approaches for rubber[J].International Journal of Fatigue,2002,24(9):949-961.
[11]YOUNG D G.Fatigue testing for commercial application[J].Rubber World,2006,234(3):28-34.
[12]贺建功,王伯铭.一种轴箱定位橡胶关节的有限元分析[J].电力机车与城轨车辆,2011,34(5):22-24.HE Jiangong,WANG Boming.Analysis of stiffness of rubber joint on axle based on finite element method[J].Electric Locomotives&Mass Transit Vehicles,2011,34(5):22-24.(in Chinese)
[13]上官文斌,王小莉,叶必军,等.应变比对填充天然橡胶疲劳特性影响的试验及其寿命预测方法研究[J].机械工程学报,2013,49(8):49-56.SHANGGUAN Wenbin,WANG Xiaoli,YE Bijun,et al.Experiment and fatigue life prediction of filled natural rubber emphasizing on effect of strain ratio[J].Journal of Mechanical Engineering,2013,49(8):49-56.(in Chinese)
[14]常浩,程海涛,黄友剑.一种多轴载荷下橡胶弹性元件疲劳寿命预测方法的研究[J].铁道车辆,2015,53(10):5-9.CHANG Hao,CHENG Haitao,HUANG Youjian.A fatigue life prediction method for rubber elastic components under multi axial loads[J].Rolling Stock,2015,53(10):5-9.(in Chinese)
[15]卜继玲,黄友剑.轨道车辆橡胶弹性元件设计计算方法[M].北京:中国铁道出版社,2010:45-47.BU Jiling,HUNAG Youjian.Calculation method of rubber elastic component design for railway vehicles[M].Beijing:China Railway Publishing House,2010:45-47.(in Chinese)
[16]国家铁路局.机车车辆用橡胶弹性元件通用技术条件:TB/T 2843—2015[S].北京:中国铁道出版社,2016:11-12.National Railway Administration of the People’s Republic of China.General technical requirement for rolling stock rubber to metal parts:TB/T 2843—2015[S].Beijing:China Railway Publishing House,2016:11-12.(in Chinese)