• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2023, Vol. 59 ›› Issue (12): 318-331.doi: 10.3901/JME.2023.12.318

• 运载工程 • 上一篇    下一篇

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高速列车制动界面摩擦自激振动抑制及能量收集

项载毓1, 莫继良1, 朱松2, 陈伟1,2, 杜利清2   

  1. 1. 西南交通大学牵引动力国家重点实验室 成都 610031;
    2. 中车戚墅堰机车车辆工艺研究所有限公司 常州 213011
  • 收稿日期:2022-09-30 修回日期:2023-04-11 出版日期:2023-06-20 发布日期:2023-08-15
  • 通讯作者: 莫继良(通信作者),男,1982年出生,博士,研究员,博士研究生导师。主要研究方向为高端装备减振降噪,摩擦学及表面工程。E-mail:jlmo@swjtu.cn
  • 作者简介:项载毓,男,1988年出生,博士研究生。主要研究方向为摩擦自激振动。E-mail:zaiyu_xiang@126.com
  • 基金资助:
    牵引动力国家重点实验室自主研究课题(2020TPL-T06)、国家自然科学基金(51822508)和四川省科技计划(2020JDTD0012)。

Friction-induced Vibration Reduction and Energy Harvesting of High-speed Train Brake Interface

XIANG Zaiyu1, MO Jiliang1, ZHU Song2, CHEN Wei1,2, DU Liqing2   

  1. 1. Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031;
    2. CRRC Qishuyan Institute Co., LTD, Changzhou 213011
  • Received:2022-09-30 Revised:2023-04-11 Online:2023-06-20 Published:2023-08-15

摘要: 针对高速列车制动系统普遍存在摩擦振动噪声问题,尝试安装压电悬臂梁以实现摩擦自激振动的抑制和振动能量的收集。为此,在自行研制的高速列车制动性能模拟试验装置开展试验,并基于该试验装置开展有限元仿真分析,以及建立数值仿真分析模型,讨论压电悬臂梁对制动系统摩擦自激振动及输出电压特性的影响。结果表明,安装合适的压电悬臂梁能够有效减小制动系统复特征值实部,实现制动系统摩擦自激振动的抑制,并将制动系统的高频摩擦自激振动能量转换为电能输出;安装压电悬臂梁有利于减少制动系统频率成份,从而优化其频率特性,但未显著改变制动系统的不稳定振动的频率和振型;合适的压电陶瓷参数对制动系统模态耦合特性以及不稳定振动强度未存在显著影响;输出电压大小与外部激励幅值呈正相关关系,由于高速列车制动系统能够产生高强度的摩擦自激振动,使得压电悬臂梁产生较大的电压输出。

关键词: 高速列车, 制动界面, 摩擦振动噪声, 振动抑制, 能量收集

Abstract: Considering that the friction-induced vibration and noise(FIVN) is a common observation in the brake systems of high-speed train, piezoelectric cantilever beam(PZT-beam) is introduced near the brake interface in an attempt to reduce the vibration as well as to harvest the vibration energy. A self-developed braking dynamometer which can simulate the brake performance of high-speed train is employed to conduct the experiment, based on which we have also established a finite element model and a numerical model to study on this research topic, discussing the effect of the PZT-beam on the FIVN and exploring the characteristics of the harvested output power. The results show that the introduction of the proper PZT-beam can effectively reduce the real part of the brake system’s eigenvalue, so that the unstable FIVN intensity can be effectively reduced. The high-frequency vibration energy can be converted into electric energy via the deformation of PZT-beam. The installation of PZT-beam can reduce the frequency component of the brake system and optimize its frequency characteristics, while the main frequency and corresponding mode shape are not significantly changed, indicating that the piezoelectric energy harvesting only suppresses the intensity of the unstable vibration but has no visible effect on the vibration behaviors in terms of frequency and mode. Moreover, the appropriate piezoelectric parameters have no significant effect on the modal coupling characteristics and the unstable vibration intensity of the brake system. The PZT-beam can produce a considerable output voltage due to the strong FIVN of the brake system.

Key words: high-speed train, brake interface, friction-induced vibration and noise, vibration reduction, energy harvesting

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