• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (1): 44-55.doi: 10.3901/JME.2018.01.044

• 特邀专栏:硬岩掘进装备(TBM)的关键基础问题 • 上一篇    下一篇

TBM刀盘驱动系统分层次建模及动力学特性研究

孙伟, 马宏辉, 丁鑫, 王林涛   

  1. 大连理工大学机械工程学院 大连 116024
  • 收稿日期:2017-03-02 修回日期:2017-06-19 出版日期:2018-01-05 发布日期:2018-01-05
  • 通讯作者: 王林涛(通信作者),男,1987年出生,博士,讲师,硕士研究生导师。主要研究方向为流体传动与控制和振动分析与控制。E-mail:wlt@dlut.edu.cn
  • 作者简介:孙伟,男,1967年出生,博士,教授,博士研究生导师。主要研究方向为多学科协同设计方法和系统动力学。E-mail:sunwei@dlut.edu.cn
  • 基金资助:
    国家自然科学基金(51605071)、国家重点基础研究发展计划(973计划,2013CB035402)和中国博士后科学基金(2016T90218)资助项目。

Hierarchical Modeling and Dynamic Analysis of Cutterhead Driving System in TBM

SUN Wei, MA Honghui, DING Xin, WANG Lintao   

  1. School of Mechanical Engineering, Dalian University of Technology, Dalian 116024
  • Received:2017-03-02 Revised:2017-06-19 Online:2018-01-05 Published:2018-01-05

摘要: 提出一种适用于全断面岩石掘进机(Tunnel boring machines,TBM)刀盘驱动系统的分层次建模方法,考虑系统变频电机运行特性、齿轮时变啮合刚度和啮合误差等非线性因素,基于动力学相似理论建立刀盘驱动系统整机动力学模型。研究了刀盘驱动系统在电动机启动、稳态载荷与冲击载荷等工况下的动力学响应,分析结果表明各构件的振动频率主要集中在各级啮合频率的倍频处;动态啮合力的最大幅值均发生在相应啮合频率的倍频处且动态啮合力的波动随着外部激励的增加而加剧。基于模型试验台,测试得到不同转速工况下刀盘驱动系统的振动响应,结果表明各级传动系统的啮合频率及倍频是系统振动的主要频率成分,验证了分层次建模方法的适用性,分析结果为刀盘驱动系统的动力学设计提供了理论依据。

关键词: TBM, 刀盘驱动系统, 动力学特性, 分层次建模

Abstract: Hierarchical modeling method of cutterhead driving system in tunnel boring machines (TBM) is proposed. Considering the nonlinear factors such as motor operating performance, time-variant mesh stiffness and mesh error, dynamic model of whole cutterhead driving system is established based on the dynamic similarity theory. Dynamic characteristics of key components are analyzed under motor start-up phase, rated load and impact load. The results show that vibration of each component mainly happens near multiple mesh frequency and the maximum amplitude of dynamic meshing force appears at multiple mesh frequency. Moreover, the fluctuation of dynamic meshing force increases with the external excitation. Based on the test-bed of TBM cutterhead driving system, vibration response of key components under different rotate speed is measured. The results show that mesh frequency and its multiple frequency are the main vibration frequency in the vibration of cutterhead driving system, which can verify the applicability of hierarchical modeling method. The analysis result can also provide theoretical basis in the dynamic design of TBM cutterhead driving system.

Key words: cutterhead driving system, dynamic characteristic, hierarchical modeling method, TBM

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