摘要
为了研究橡胶缓冲器特性,从缓冲器中的橡胶取样进行了相关力学试验,确定了橡胶材料本构模型Mooney-Rivlin模型的相关参数。将相关参数代入到建立的橡胶缓冲器有限元模型中,将分析计算结果与试验验证进行了对比分析,验证了建立的有限元模型的准确性。将模型代入到多体动力学软件中进行了计算,并与组装好的橡胶缓冲器的动车组动力学进行了研究对比,发现在动车组纵向动力学过程中,各车辆仿真与试验的最大载荷和位移趋势较为接近,橡胶缓冲器能够较好地吸收冲击能量,满足使用要求。
In order to study the service characteristics of rubber buffers in EMUs,the rubber buffers for couplers of EMU are analyzed and explored.The rubber in the buffer is sampled,and the relevant mechanical tests are carried out to determine the relevant parameters of Mooney-Rivlin constitutive model of rubber material.The relevant parameters are substituted into the finite element model of rubber buffer,and the stress analysis of the finite element model is carried out.The analysis and calculation results are compared with the experimental verification,which verifies the accuracy of the established finite element model.The model is substituted into the multi-body dynamics software for calculation,and compared with the dynamics of EMU with rubber buffer assembled.It is found that during the longitudinal dynamics of the EMU,the maximum load and displacement trends of each vehicle simulation and test are relatively close to each other,and the rubber buffer can absorb the impact energy better and meet the usage requirements.
作者
马桃
吴刚
张晋伟
周磊
陈嘉林
MA Tao;WU Gang;ZHANG Jinwei;ZHOU Lei;CHEN Jialin(Changzhou Branch,CRRC Braking System Co.,Ltd.,Changzhou 213000,China)
出处
《铁道车辆》
2024年第3期57-60,64,共5页
Rolling Stock
