Car body elastic vibration control in EMUs based on modal contribution

CAO Hui; LIANG Ning

doi:10.13890/j.issn.1000-128X.2022.05.104

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Car body elastic vibration control in EMUs based on modal contribution

Railway Rolling Stock | 更新时间：2024-08-02

- Car body elastic vibration control in EMUs based on modal contribution
- Electric drive for locomotives Issue 5, Pages: 72-77(2022)
- 作者机构：
  
  1.成都工业学院智能制造学院，四川成都　611730
  2.四川工商职业技术学院经济管理系，四川成都　611830
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2022.05.104
  CLC： U292.91⁺4;U270.1⁺1
- Published：10 September 2022，
  
  Received：21 January 2022，
- 稿件说明：
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CAO Hui, LIANG Ning. Car body elastic vibration control in EMUs based on modal contribution. [J]. Electric drive for locomotives (5):72-77(2022)
DOI：

CAO Hui, LIANG Ning. Car body elastic vibration control in EMUs based on modal contribution. [J]. Electric drive for locomotives (5):72-77(2022) DOI： 10.13890/j.issn.1000-128X.2022.05.104.

摘要

动车组车体结构轻量化设计会导致结构柔性增加，随着动车组运营里程的增加，轮轨磨耗的加剧，车体在运行过程会出现抖车、晃车等异常弹性振动现象，进而影响乘坐舒适性和运行安全性。因此，从模态贡献、模态设计和模态控制等角度出发分析产生该异常振动的原因。基于动车组车体模态修正和模态试验结果，建立车体有限元模型；根据车体工况，将车体模态处理为自由模态，提取结构模态参数；基于模态分析理论和模态贡献原理，分析车体结构弹性模态振型，并依据车体模态位移计算结构模态贡献因子；分析控制车体弹性振动的模态匹配方法与传递函数控制方法。结果表明，对车体垂向振动贡献较大的模态依次为车体一阶垂弯、一阶菱形、二阶菱形、一阶扭转等模态，对横向振动贡献较大的模态依次为一阶横弯、一阶菱形、二阶菱形、一阶扭转模态。引起车体弹性振动的主要因素有轨道激扰、转向架蛇行、转向架模态、车下设备悬挂参数等。轮对、构架、车体等构件的刚性自振频率应满足隔振要求，车体一阶菱形弹性模态频率与构架刚性、弹性频率要有效隔离，可降低车体异常弹性振动；增大车体结构阻尼比可减小加速度传递函数幅值，提高乘坐舒适性，当车体结构阻尼比从0.015提高至0.150时，平稳性指标可改善13%，提高结构阻尼可显著降低车体振动。

Abstract

The lightweight design of the car body structure in EMUs leads to an increase in structural flexibility

and with the increase in the operating mileage and the deterioration of wheel-rail wear

the car body suffers from worsening abnormal elastic vibrations during operation

such as jittering and lurching

which affect riding comfort and operational safety. This paper was intended to analyze the causes of such abnormal vibrations

from the perspectives of modal contribution

modal design and modal control. Firstly

based on the modal correction and modal test results of the car body

a finite element model of the car body was established. Secondly

according to the working conditions

the car body was processed into a free modal

and the structural modal parameters were extracted. Then

based on the modal analysis theory and the principle of modal contribution

the elastic modal shapes of the car body structure were analyzed

and the structural modal contribution factor was calculated according to the car body modal displacement. Finally

the modal matching method and transfer function method were analyzed for the elastic vibration control of the car body. The results show that the modals that contribute greatly to the vertical vibration of the car body in the order of magnitude are as follows: the first-order vertical bending

the first-order diamonding

the second-order diamonding

and the first-order torsioning

and the modals that contribute greatly to the lateral vibration in the order of magnitude are as follows: the first-order lateral bending

the first-order diamonding

the second-order diamonding

and the first-order torsioning. The main factors that cause the elastic vibration of the car body are the track disturbance

the bogie hunting motion

the bogie modal

and the suspension parameters of the underfloor equipment. The rigid natural vibration frequency of the wheelset

frame

car body and other EMU components should meet the vibration isolation requirements

and the first-order diamonding elastic modal frequency of the car body should be effectively isolated from the rigidity and elastic frequencies of the frame

to reduce abnormal elastic vibration of the car body. An increase in the damping ratio of the car body structure can reduce the amplitude of the acceleration transfer function and improve the riding comfort. Specifically

an increase in the damping ratio of the car body structure from 0.015 to 0.150 can improve the running stability index by 13%

so increasing the structural damping can significantly reduce car body vibration.

关键词

动车组车体模态分析模态贡献模态匹配传递函数高速列车轨道不平顺

Keywords

EMUcar bodymodal analysismodal contributionmodal matchingtransfer functionhigh-speed traintrack irregularity

references

贾焕英, 蔡彦强. 高速动车组地板系统的分析研究[J]. 铁道机车车辆, 2013, 33(5): 36-39.

JIA Huanying, CAI Yanqiang. Research and analysis of floor system for high-speed EMU[J]. Railway Locomotive & Car, 2013, 33(5): 36-39.

尤泰文, 周劲松, 宫岛, 等. 高速动车组地板局部振动控制研究[J]. 机械工程学报, 2021, 57(4): 140-147.

YOU Taiwen, ZHOU Jinsong, GONG Dao, et al. Research on local vibration control of high-speed EMU floor[J]. Journal of Mechanical Engineering, 2021, 57(4): 140-147.

韩兴晋, 周劲松, 厉鑫波, 等. 高速列车车体抖振现象研究[J]. 噪声与振动控制, 2021, 41(2): 163-167.

HAN Xingjin, ZHOU Jinsong, LI Xinbo, et al. Study on the chattering phenomenon of high-speed train bodies[J]. Noise and Vibration Control, 2021, 41(2): 163-167.

曾京, 干锋, 罗光兵. 轨道车辆轮轨关系检测及等效锥度管理[J]. 现代城市轨道交通, 2021(6): 29-34.

ZENG Jing, GAN Feng, LUO Guangbing. Inspection on wheel and rail interface of rail vehicles and management of equivalent conicity[J]. Modern Urban Transit, 2021(6): 29-34.

崔利通, 李国栋, 宋春元, 等. 高速动车组悬挂参数优化研究[J]. 铁道学报, 2021, 43(4): 42-50.

CUI Litong, LI Guodong, SONG Chunyuan, et al. Study on optimization of suspension parameters of high-speed EMU trains[J]. Journal of the China Railway Society, 2021, 43(4): 42-50.

陈经纬, 崔涛, 孙建锋, 等. 基于高速列车异常晃动的钢轨廓形打磨管理[J]. 机车电传动, 2020(5): 128-131.

CHEN Jingwei, CUI Tao, SUN Jianfeng, et al. Grinding management of rail profile based on abnormal hunting of high-speed train[J]. Electric Drive for Locomotives, 2020(5): 128-131.

李凡松, 王建斌, 石怀龙, 等. 动车组车体异常弹性振动原因及抑制措施研究[J]. 机械工程学报, 2019, 55(12): 178-188.

LI Fansong, WANG Jianbin, SHI Huailong, et al. Research on causes and countermeasures of abnormal flexible vibration of car body for electric multiple units[J]. Journal of Mechanical Engineering, 2019, 55(12): 178-188.

宫岛, 刘广宇, 周劲松, 等. 动车组车体异常振动问题分析及治理研究[J]. 机械工程学报, 2021, 57(10): 95-105.

GONG Dao, LIU Guangyu, ZHOU Jinsong, et al. Research on abnormal vibration issue of car bodies of EMU trains and its treatment[J]. Journal of Mechanical Engineering, 2021, 57(10): 95-105.

龚继军, 孙建峰, 王军平, 等. 成贵客专动车组异常抖动原因分析及治理[J]. 中国铁路, 2020(2): 70-75.

GONG Jijun, SUN Jianfeng, WANG Junping, et al. Cause analysis and treatment of abnormal shaking for EMU on Chengdu-Guiyang PDL[J]. Chinese Railways, 2020(2): 70-75.

曹辉. 高速动车组车体振动控制与应变模态分析[D]. 成都: 西南交通大学, 2016.

CAO Hui. Carbody vibration control and strain modal analysis for EMU[D]. Chengdu: Southwest Jiaotong University, 2016.

CARLBOM P F. Combining MBS with FEM for rail vehicle dynamics analysis[J]. Multibody System Dynamics, 2001, 6(3): 291-300.

PARLETT B N. The symmetric eigenvalue problem[M]. Philadelphia: Society for Industrial and Applied Mathematics, 1998.

BATHE K J, WILSON E L. Large eigenvalue problems in dynamic analysis[J]. Journal of the Engineering Mechanics Division, 1972, 98(6): 1471-1485.

丁文镜. 减振理论[M]. 2版. 北京: 清华大学出版社, 2014.

DING Wenjing. Damping theory[M]. 2nd ed. Beijing: Tsinghua University Press, 2014.

孙庆鸿, 张启军, 姚慧珠. 振动与噪声的阻尼控制[M]. 北京: 机械工业出版社, 1993.

SUN Qinghong, ZHANG Qijun, YAO Huizhu. Damping control of vibration and noise[M]. Beijing: China Machine Press, 1993.

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