TBM刀盘系统不确定工况下的动力学特性分析
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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.
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.
引文
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[11]谢启江,余海东,郑辉,等.变约束条件下硬岩掘进机推进系统动态特性[J].机械设计与研究,2015,31(3):152.XIE Qijiang,YU Haidong,ZHENG Hui,et al. Dynamic behavior of thrusting system of tunnel boringmachines with variable constraint conditions[J]. Machine Design and Research,2015,31(3):152.
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[13]刘然.盾构机刀盘同步驱动系统自适应均载控制研究[D].大连:大连理工大学,2013.LIU Ran. Research on adaptive load sharing control for synchronous driving system of cutterhead in shield machines[D]. Dalian:Dalian University of Technology,2013.
[14]张凯之.盾构机冗余驱动回转系统动态特性研究[D].上海:上海交通大学,2011.ZHANG Kaizhi. Study of dynamic characteristics of redundantly driven revolving system of shield TBM[D].Shanghai:Shanghai Jiao Tong University,2011.
[15]凌静秀,孙伟,霍军周,等. TBM刀盘系统多自由度耦合固有特性及敏感度[J].东北大学学报(自然科学版),2015,36(4):546.LING Jingxiu,SUN Wei,HUO Junzhou,et al. Natural characteristics and sensitivity of TBM cutterhead system with multi-degree-of-freedom coupling[J]. Journal of Northeastern University(Natural Science), 2015, 36(4):546.
[16]霍军周,杨静,孙伟,等. TBM不同支撑结构形式下的围岩稳定性分析[J].东北大学学报(自然科学版),2014,35(11):1602.HUO Junzhou,YANG Jing,SUN Wei,et al. Stability analysis of surrounding rock under different TBM supporting forms[J]. Journal of Northeastern University(Natural Science),2014,35(11):1602.
[17]霍军周,李广庆,吴瀚洋,等. TBM刀盘缩尺试验台设计及其静动态特性分析[J].哈尔滨工程大学学报,2016,37(5):713.HUO Junzhou,LI Guangqing,WU Hanyang,et al. Design of a TBM cutterhead reduced-scale test bench and its static/dynamic characteristics analysis[J]. Journal of Harbin Engineering University,2016,37(5):713.
[18] LING Jingxiu,SUN Wei,HUO Junzhou,et al. Study of TBM cutterhead fatigue crack propagation life based on multi-degree of freedom coupling system dynamics[J].Computers&Industrial Engineering,2015,83:1.
[2] LING Jingxiu,SUN Wei,HUO Junzhou,et al. Study of TBM cutterhead fatigue crack propagation life based on multidegree of freedom coupling system dynamics[J]. Computers&Industrial Engineering,2015,83:1.
[3] ZHANG Kaizhi,YU Haidong,LIU Zhongpo,et al. Dynamic characteristic analysis of TBM tunnelling in mixed-face conditions[J]. Simulation Modelling Practice&Theory,2010,18(7):1019.
[4] LI Xianhong,YU Haibin,YUAN Mingzhe,et al. Dynamic modeling and analysis of shield TBM cutterhead driving system[J]. Jouranl of Dynamic Systems Measurement and Control,2010,132(4):1.
[5] HUO Junzhou, WU Hanyang, SUN Wei, et al.Electromechanical coupling dynamics of TBM main drive system[J]. Nonlinear Dynamics,2017,90(4):2687.
[6] ZOU Xiaoyang,ZHENG Hui,MI Yongzhen. Performance evaluation of hard rock TBMs considering operational and rock conditions[J]. Shock and Vibration,2018:17.
[7] SUN Wei,MA Honghui,SONG Xueguan,et al. Modeling and dynamic analysis of cutterhead driving system in tunnel boring machine[J]. Shock and Vibration,2017:1.
[8]凌静秀,孙伟,霍军周,等. TBM刀盘系统多自由度耦合振动响应灵敏度研究[J].中南大学学报(自然科学版),2017,48(3):650.LING Jingxiu,SUN Wei,HUO Junzhou,et al. Sensitivity of vibration response about TBM cutterhead system with multidegree-of-freedom coupling[J]. Journal of Central South University(Science and Technology),2017,48(3):650.
[9]霍军周,欧阳湘宇,王亚杰,等.重载冲击激励下TBM刀盘振动特性的影响因素分析[J].哈尔滨工程大学学报,2015,36(4):555.HUO Junzhou,OUYANG Xiangyu,WANG Yajie,et al.Analysis of influencing factors of vibration behaviors of TBM cutterhead under heavy impact loads[J]. Journal of Harbin Engineering University,2015,36(4):555.
[10]唐国文,余海东,谢启江.不确定性地质参数下硬岩掘进机动态特性与评价[J].上海交通大学学报,2016,50(11):1670.TANG Guowen,YU Haidong,XIE Qijiang. Evaluation of dynamic characteristics of tunnel boring machine excavating in uncertain geological parameters[J]. Journal of Shanghai Jiaotong University,2016,50(11):1670.
[11]谢启江,余海东,郑辉,等.变约束条件下硬岩掘进机推进系统动态特性[J].机械设计与研究,2015,31(3):152.XIE Qijiang,YU Haidong,ZHENG Hui,et al. Dynamic behavior of thrusting system of tunnel boringmachines with variable constraint conditions[J]. Machine Design and Research,2015,31(3):152.
[12]徐松,温雪龙,张延杰.硬岩隧道掘进机刀盘的静动态特性研究[J].机械设计与制造,2017(1):209.XU Song, WEN Xuelong, ZHANG Yanjie. Static and dynamic characteristics research on cutter head of rock tunnel boring machine[J]. Machinery Design&Manufacture,2017(1):209.
[13]刘然.盾构机刀盘同步驱动系统自适应均载控制研究[D].大连:大连理工大学,2013.LIU Ran. Research on adaptive load sharing control for synchronous driving system of cutterhead in shield machines[D]. Dalian:Dalian University of Technology,2013.
[14]张凯之.盾构机冗余驱动回转系统动态特性研究[D].上海:上海交通大学,2011.ZHANG Kaizhi. Study of dynamic characteristics of redundantly driven revolving system of shield TBM[D].Shanghai:Shanghai Jiao Tong University,2011.
[15]凌静秀,孙伟,霍军周,等. TBM刀盘系统多自由度耦合固有特性及敏感度[J].东北大学学报(自然科学版),2015,36(4):546.LING Jingxiu,SUN Wei,HUO Junzhou,et al. Natural characteristics and sensitivity of TBM cutterhead system with multi-degree-of-freedom coupling[J]. Journal of Northeastern University(Natural Science), 2015, 36(4):546.
[16]霍军周,杨静,孙伟,等. TBM不同支撑结构形式下的围岩稳定性分析[J].东北大学学报(自然科学版),2014,35(11):1602.HUO Junzhou,YANG Jing,SUN Wei,et al. Stability analysis of surrounding rock under different TBM supporting forms[J]. Journal of Northeastern University(Natural Science),2014,35(11):1602.
[17]霍军周,李广庆,吴瀚洋,等. TBM刀盘缩尺试验台设计及其静动态特性分析[J].哈尔滨工程大学学报,2016,37(5):713.HUO Junzhou,LI Guangqing,WU Hanyang,et al. Design of a TBM cutterhead reduced-scale test bench and its static/dynamic characteristics analysis[J]. Journal of Harbin Engineering University,2016,37(5):713.
[18] LING Jingxiu,SUN Wei,HUO Junzhou,et al. Study of TBM cutterhead fatigue crack propagation life based on multi-degree of freedom coupling system dynamics[J].Computers&Industrial Engineering,2015,83:1.