TBM刀盘系统不确定工况下的动力学特性分析  

Dynamic Characteristics Analysis of TBM Cutterhead System under Uncertain Working Conditions

作　　者：贾连辉 徐兆辉 聂晓东[3] 叶尔肯.扎木提 霍军周[2] JIA Lianhui;XU Zhaohui;NIE Xiaodong;YE Erken·ZHA Muti;HUO Junzhou(China Railway Engineering Equipment Group Co.,Ltd.,Zhengzhou 450000,Henan,China;School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China;Ergis River Basin Development Project Construction Management Bureau,Urumqi 830000,Xinjiang,China)

机构地区：[1]中铁工程装备集团有限公司,河南郑州450000 [2]大连理工大学机械工程学院,辽宁大连116024 [3]新疆额尔齐斯河流域开发工程建设管理局,新疆乌鲁木齐830000

出　　处：《隧道建设（中英文）》2019年第1期148-156,共9页Tunnel Construction

基　　金：国家自然科学重点基金(U1708255);国家自然科学基金(51875076)

摘　　要：为解决全断面岩石掘进机(TBM)刀盘系统由于掘进过程中工况不确定性造成的载荷不确定和动态特性预测难度大的问题,提出一种工况不确定性的动力学分析方法。首先,对4种典型掘进工况进行等效,采用区间理论将不同工况的等效载荷进行区间表示,并将工况的不确定性转化为载荷的不确定性;然后,通过集中质量法建立刀盘多自由度耦合动力学模型,并结合得到的区间不确定载荷等效出不确定工况下的多自由度耦合动力学模型,求解得到不确定工况下的动力学响应;最后,以现场实测数据对该方法进行验证。研究结果表明:TBM在设计时应充分考虑工况的差异性;随着刀盘分块的增多,刀盘系统稳定性有所提高;驱动齿轮均匀分布时,刀盘系统振动稳定性较好。The problems of load uncertainty and difficult prediction of dynamic characteristics of the cutterhead system of TBM induced by the uncertainty of the working conditions during full-face hard rock TBM tunneling need to be solved.Hence,a dynamic analysis method for uncertainty of working condition is put forward.Firstly,the equivalent of 4 typical working conditions is carried out,the equivalent loads of different working conditions are expressed by interval theory,and the uncertainty of working condition is transformed into the uncertainty of load.And then the multi-degree freedom coupling dynamic model of the cutterhead is established by the lumped mass method,the multi-degree freedom coupling dynamic model under uncertain working conditions is obtained based on the interval uncertain load,and the dynamic response under uncertain working condition is calculated.Finally,the above-mentioned method is verified by field test data.The study results show that:(1)The difference of working conditions should be fully considered during TBM design.(2)The stability of the cutterhead system has been increased with the increase of the cutterhead block.(3)The cutterhead system has a better vibration stability when the drive gear is evenly distributed.

关 键 词：TBM刀盘系统 不同工况 不确定性转化 集中质量法 多自由度耦合 动力学分析 

分 类 号：U455.31[建筑科学—桥梁与隧道工程]