转向架变刚度轴箱转臂定位节点AMESim模型建立及应用研究  

Establishment and Application of AMESim Model of Bogie Axle Box Rotary Arm Node with Variable Stiffness

作　　者：杨欣 公衍军 杨东晓 韩旭 尹子轩 YANG Xin;GONG Yanjun;YANG Dongxiao;HAN Xu;YIN Zixuan(CRRC Qingdao Sifang Locomotive&Rolling Stock Co.,Ltd.,Qingdao 266111,China)

机构地区：[1]中车青岛四方机车车辆股份有限公司,山东青岛266111

出　　处：《铁道车辆》2025年第2期105-112,共8页Rolling Stock

摘　　要：介绍了变刚度转臂定位节点,依据其结构特点与工作原理,利用AMESim软件建立了节点非线性力学模型,并与试验结果对比验证了模型的准确性;基于该非线性力学模型,研究了变刚度转臂节点关键参数对其动态特性的影响;最后进行了AMESim与SIMPACK联合仿真。研究结果表明,非线性力学模型能较好地体现实际模型的力学特性,外部激励频率较低时,节点的刚度较低,主要为橡胶元件的刚度;外部激励频率增大时,其刚度逐渐增大。变刚度转臂节点的动态性能受多个参数的影响,其中与橡胶元件相关的参数对转臂节点动态特性的影响较大,而与惯性通道相关的参数对其影响较小。相比于采用传统定位节点,采用变刚度转臂定位节点的车辆临界速度提升了2.9%,脱轨系数降低了13%,可改善车辆的曲线通过安全性并保持车辆直线运行的稳定性。This paper introduces the rotary arm node with variable stiffness.A nonlinear mechanical model of the node is established by using AMESim software according to its structural characteristics and working principle,and the accuracy of the model is verified by comparing with the test results.Based on the nonlinear mechanical model,the influence of key parameters of node with variable stiffness on their dynamic characteristics is studied.Finally,the co-simulation of AMESim and SIMPACK is carried out.The results indicate that the nonlinear mechanical model can better reflect the mechanical characteristics of the actual model.When the external excitation frequency is low,the stiffness of nodes is low,mainly the stiffness of rubber components.When the external excitation frequency increases,its stiffness gradually increases.The dynamic performance of rotary arm node with variable stiffness is affected by several parameters,among which the parameters related to rubber elements have a great influence on the dynamic characteristics of rotary arm nodes,while a small influence on the parameters related to inertial channels.Compared to using traditional positioning nodes,the critical speed of the vehicle using rotary arm node with variable stiffness is enhanced by 2.9%and the derailment coefficient is decreased by 13%,thereby enhancing the safety of curve negotiation and ensuring the vehicle’s stability while operating in a straight line.

关 键 词：铁道车辆 变刚度转臂节点 AMESim非线性力学模型 频变特性 动力学性能 

分 类 号：U270.331[机械工程—车辆工程]