• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (8): 1-7.doi: 10.3901/JME.2018.08.001

• 特邀专栏:大国重器:复兴之路上的轨道交通技术 •    下一篇

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高速动车组车下悬挂系统两级悬挂隔振研究

汪群生1, 曾京1, 魏来1, 张传英2   

  1. 1. 西南交通大学牵引动力国家重点实验室 成都 610031;
    2. 四川工业科技学院交通学院 德阳 618500
  • 收稿日期:2017-04-25 修回日期:2017-07-20 出版日期:2018-04-20 发布日期:2018-04-20
  • 通讯作者: 曾京(通信作者),男,1964年出生,博士,教授,博士研究生导师。主要研究方向为车辆系统动力学。E-mail:zeng@home.swjtu.edu.cn
  • 作者简介:汪群生,男,1990年出生,博士。主要研究方向为车辆系统动力学。E-mail:wangqunsheng@126.com;魏来,男,1989年出生,博士,助理研究员。主要研究方向为车辆系统动力学。E-mail:707101305@qq.com;张传英,女,1990年出生,硕士,助教。主要研究方向为流体力学。E-mail:chenqin870699125@126.com
  • 基金资助:
    国家自然科学基金(U1334206,51475388)和国家科技支撑计划(2015BAG13B01-03)资助项目。

Research on Vibration Reduction of Carbody Underframe Suspended System Applied with Two-stage Suspension in High-speed EMU

WANG Qunsheng1, ZENG Jing1, WEI Lai1, ZHANG Chuanying2   

  1. 1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031;
    2. Institute of transportation, Sichuan Institute of Industrial Technology, Deyang 618500
  • Received:2017-04-25 Revised:2017-07-20 Online:2018-04-20 Published:2018-04-20

摘要: 基于国内某型高速动车组车下旋转设备的振动测试试验,建立考虑车体弹性和车下旋转设备不均衡振动的刚柔耦合动力学模型,分析车下旋转设备两级悬挂方式对车体和旋转设备振动行为的影响。通过车体有限元完整模型、子结构模型和模态试验的分析结果,确保动力学模型中的弹性车体可以反映车体实际的振动模态。研究结果表明,两级悬挂方式主要降低车体受到的不均衡振动,对其他频率下的振动影响较小,与单级悬挂相比较,其振动幅值降低了约一半,减振效果明显;两级悬挂系统中的框架质量、悬挂频率和阻尼比对车体和旋转设备的振动影响明显,通过选取合理的悬挂参数使得车体减振效果更明显;与单级悬挂比较,两级悬挂结构复杂,不适用于所有的车下旋转设备,为确保某些重要电器元件满足长期服役运营的需求,对其冷却风机等旋转设备采用两级悬挂方式可以获取良好的减振效果。

关键词: 不均衡振动, 车体减振, 车下旋转设备, 高速动车组, 两级悬挂

Abstract: Based on the field test on carbody underframe rotational equipment of some high-speed railway vehicle, a flexible-rigid coupled model considering carbody elastic and unbalanced vibration of rotational equipment was established. Applied with two-stage suspension of underframe rotational equipment, the vibration performance of carbody and underframe suspended equipment is analyzed. Comparing the result of carbody complete finite element model, the substructure model and modal test, the elastic carbody in the dynamic model can reflect the reality of carbody vibration modal. The result shows that the two-stage suspension mode mainly reduces the carbody vibration caused by dynamic unbalance, while has little influence on the vibration of other frequencies. Compared with the one-stage suspension, the vibration amplitude is reduced by about half, and the effect of vibration reduction is obvious. In the two-stage suspension system, the frame mass, suspension frequency and damping ratio have obvious influence on the vibration of carbody and the equipment. The effect is more obvious by selecting reasonable suspension parameters. The structure of two-stage suspension is complex and is not suitable for all underframe rotational equipment. To meet the requirement of long-term service operation of some electrical components, the application of two-stage suspension on the rotational equipment can obtain good effect of vibration reduction.

Key words: carbody vibration reduction, high-speed railway vehicle, two-stage suspension, unbalanced vibration, underframe rotational equipment

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