Multi-directional coupling dynamic characteristics analysis of TBM cutterhead system based on tunnelling field test
Multi-directional coupling dynamic characteristics analysis of TBM cutterhead system based on tunnelling field test
复制标题
基于掘进现场试验的TBM刀盘系统多向耦合动态特性分析
DOI：
10.1007/s12206-015-0701-1
复制
发表时间：
2015-08
影响因子：
1.6
通讯作者：
Wei Sun
中科院分区：
文献类型：
--
作者：
霍军周;Hanyang Wu;Jing Yang;Wei Sun
掘进机的核心部件刀盘在掘进过程中与岩石直接接触，承受多方向的冲击载荷。由于刀具设计和参数设置不合理，导致掘进过程中产生剧烈振动或异常损伤，严重影响了掘进机的掘进效率。因此，研究刀盘在冲击载荷作用下的动力学响应是TBM系统设计的核心内容之一。TBM多自由度耦合动力学模型包含不同地质条件、刀具速度、车体质量、时变啮合刚度、传动误差等，提出了基于Newmark算法的求解方法，进一步提高了求解效率。通过现场试验验证了模型和简化刀具系统的正确性。对大伙房工程的仿真结果表明：① Newmark法简化了计算过程，计算速度比Runge-Kutta法提高了3-4个数量级，而在相同精度下，求解时间由2.6e5 s减少到155 s;对比抗压强度为150 MPa和95 MPa两种岩石的试验结果，平移振幅比为3.33，轴向振幅比为2.08。结果表明：随着岩石抗压强度的增加，刀盘的振动幅值增长加快，而不是成比例的增加;当刀盘转速达到4 r/min时，振动沿着减小，系统趋于稳定;刀盘转速对扭振、横振和纵振的影响明显。变化率达到0.53-0.61。因此，掘进机应选择合适的刀盘转速，以避免轴承损坏、密封失效等严重事故的发生; 4构件的平移振动随构件质量的增加而减小。它对大环的水平和垂直振动影响最大。大环的振动变化率达到0.31。大环对轴向振动和倾覆几乎没有影响，但随着质量的增加，岩石切割所消耗的能量会减少。考虑振动、结构经济性和参数的内激励，合理选择车体重量。上述结论为TBM动力学优化设计、振动控制和刀盘结构设计提供了理论依据。
The core component, TBM cutterhead, bears a multi-directional impact load because of its direct contact with rock during tunneling. Unreasonable cutter design and parameter set lead to severe vibration or abnormal injury during excavation, seriously affecting the efficiency of the TBM tunneling. Therefore, study of cutterhead dynamics response under impact loads is one of the core content of TBM system design. TBM multi-degree-of-freedom coupled dynamic model contains different geological conditions, cutter speed, body mass, time-varying mesh stiffness, transmission error, etc. A method is proposed to solve the problem based on Newmark algorithm, which further improves the solution efficiency. A tunneling field test was conducted, and the results verify the correctness of the model and the simplified cutter system. The simulation results of the Dahuofang project show that: ➀ The calculation process of Newmark is simplified, the calculation speed increased 3-4 orders of magnitude higher than Runge-Kutta method, while the solving time was reduced from 2.6e5 s to 155 s under the same precision; ➁ Compared with the results of two kinds of rock with compressive strength 150 MPa and 95 MPa, the translational vibration amplitude ratio is 3.33 and axial vibration amplitude ratio is 2.08. It indicates that as the rock compressive strength increases, the growth of the cutterhead’s vibration amplitude increase accelerated, rather than proportional increases; ➂ The vibration decreases along with the cutter speed becomes larger and the system becomes stabilized when the cutterhead speed turns into 4r/min. The cutter head speed clearly affects torsional, lateral and longitudinal vibration. The change rate has reached 0.53-0.61. Therefore, TBM should choose the right cutter speed to avoid bearing damage, seal failure and other serious accidents; 4 The translational vibration of components decreases with the components’ mass increase. It has the greatest impact on the horizontal and vertical vibration of the big ring. The vibration changing rate of the big ring reaches 0.31. The big ring has almost no effect on the axial vibration and overturn, but the energy consumed on rock cutting will be reduced as the mass increases. Body weight should be chosen reasonably considering vibration,construction economy and internal excitation of parameters. The above conclusions provide a theoretical basis for TBM dynamics optimization design, vibration control and cutterhead architecture design.
登录
查看更多内容
影响因子：
1.6
作者：
Wei Sun;J. Huo;J. Chen;Z. Li;Xu Zhang;Li Guo;H. Zhao;Yu Zhao
通讯作者：
Wei Sun;J. Huo;J. Chen;Z. Li;Xu Zhang;Li Guo;H. Zhao;Yu Zhao
DOI：
--
发表时间：
2012
期刊：
Journal of Harbin Engineering University
影响因子：
--
作者：
Zhang Xu
通讯作者：
Zhang Xu
DOI：
--
发表时间：
2005
期刊：
Construction Machinery
影响因子：
--
作者：
Wang Meng-sh
通讯作者：
Wang Meng-sh
影响因子：
6.2
作者：
Z. X. Zhang;S. Kou;P. Lindqvist
通讯作者：
Z. X. Zhang;S. Kou;P. Lindqvist
影响因子：
3.8
作者：
SCHLANGEN, E;VANMIER, JGM
通讯作者：
VANMIER, JGM