基于正常掘进工况下的TBM刀盘振动限值研究  

Research and Analysis of Vibration Limit of TBM Cutter Head Under Normal Driving Condition

作　　者：叶尔肯·扎木提 杨峰[1] 许陪玉 霍军周[2] YE Er-ken·ZHA Mu-ti;YANG Feng;XU Pei-yu;HUO Jun-zhou(Ergis River Basin Development Project Construction Management Bureau,Urumchi 830000,China;School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]新疆额尔齐斯河流域开发工程建设管理局,乌鲁木齐830000 [2]大连理工大学机械工程学院,大连116024

出　　处：《组合机床与自动化加工技术》2022年第6期159-163,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金(51875076);国家重点研发计划(2018YFB1306701)。

摘　　要：刀盘作为TBM施工过程中实现破岩功能的关键部件,极端环境极易引起刀盘的剧烈振动,且刀盘的长期剧烈振动会导致结构开裂、失效等问题。因此,以TBM刀盘为研究对象,通过有限元与动力学仿真,确定正常掘进工况下的刀盘振动限值。首先,基于滚刀破岩动态载荷模拟仿真及CSM模型得到不同围岩类别下的滚刀载荷谱,使之作为刀盘外激励;其次,利用Ansys对刀盘进行瞬态动力学仿真,得到刀盘的最大等效应力,再以许用应力进行衡量;最后,利用Adams对TBM主机多自由度动力学模型进行动力学仿真,得到不同岩石类别正常掘进工况下的刀盘振动加速度,从而得到刀盘的振动限值。As a key component of rock breaking in TBM construction process,the cutter head is prone to severe vibration in extreme environment,and long-term severe vibration of the cutter head will lead to structural cracking and failure.Therefore,taking TBM cutter head as the research object,the limit value of cutter head vibration under normal driving conditions was determined through finite element and dynamic simulation.Firstly,the hob load spectrum under different types of surrounding rock was obtained based on the dynamic load simulation and CSM model,which was used as the external excitation of cutter disc.Secondly,Ansys was used to simulate the transient dynamics of the cutter head,and the maximum equivalent stress of the cutter head was obtained,and then the allowable stress was measured.Finally,Adams was used to simulate the multi-degree-of-freedom dynamic model of TBM host,and the vibration acceleration of the cutter head under normal driving conditions of different rock types was obtained,so as to obtain the vibration limit of the cutter head.

关 键 词：TBM 刀盘振动 正常掘进工况 振动限值 

分 类 号：TH16[机械工程—机械制造及自动化] TG501[金属学及工艺—金属切削加工及机床]