某符合TSI的双层动车组振动模态匹配设计与优化研究  

Design and optimization of vibration modal matching for a double deck EMU complying with TSI

作　　者：谢红兵 张宝珍 周安德 郭冰彬 王永 张坤 XIE Hongbing;ZHANG Baozhen;ZHOU Ande;GUO Bingbin;WANG Yong;ZHANG Kun(The State Key Laboratory of Heavy-duty and Express High-power Electric Locomotive;CRRC Zhuzhou Locomotive Co.,Ltd.,Zhuzhou 412001,China)

机构地区：[1]重载快捷大功率电力机车全国重点实验室 [2]中车株洲电力机车有限公司,湖南株洲412001

出　　处：《电力机车与城轨车辆》2023年第5期32-36,61,共6页Electric Locomotives & Mass Transit Vehicles

摘　　要：文章针对某符合TSI(欧盟铁路互联互通技术规范)的双层动车组振动模态匹配设计和振动舒适性问题,首先,建立车体整备状态下的有限元模型和基于弹性车体的整车刚-柔耦合动力学计算模型;其次,开展整备状态下车体结构整体与局部模态计算,得到Mc车模态频率规划表;最后,对整车振动舒适性进行优化仿真与试验研究。结果表明:模态频率规划表能有效实现车体与车内设备模态频率的合理匹配,可避免车体承载结构、车体局部结构及其各子系统发生共振;通过转向架悬挂参数及车体地板刚度优化,整车振动舒适性指标提升了0.5~0.8,有效提升了旅客乘坐舒适性。This paper focuses on the vibration modal matching design and vibration comfort issues of a double deck EMU complying with TSI.Firstly,a finite element model of the car body in the assembled state and a rigid-flexible coupling dynamics calculation model based on the elastic car body are established.Secondly,the overall and local modal calculations of the car body structure in the assembled state are conducted to obtain the modal frequency planning table of Mc vehicle.Finally,the optimization simulation and experimental research are conducted on vibration comfort of the entire train.The results show that the modal frequency planning table can effectively match the modal frequencies of the car body and the equipment inside the vehicle,and can avoid resonance in the load-bearing structure,local structure,and subsystems of the car body.By optimizing the suspension parameters of the bogie and the stiffness of the car body floor,the vibration comfort index has been improved by 0.5-0.8,effectively enhancing the passenger ride comfort.

关 键 词：车体 振动舒适性 模态匹配 仿真 试验 

分 类 号：U266.2[机械工程—车辆工程]