The vibration of full face hard rock tunnel boring machine (TBM) can cause the damages of the gripper cylinder that may result in breakdown of the whole system. A lumpedmass parameter dynamic model of the gripper cylinder in TBMs is established based on the Lagrange method, and the variable stiffness behavior of the structures in the cylinder and the working conditions are considered in the model. The dynamic performance and load transmission of the gripper cylinder are numerically discussed with the influence of the piston rod extension, the equivalent stiffness of the rock and seals and the copper guide sleeve. The results show that the natural frequency of the gripper cylinder decreases with the extension length of the piston rod. The natural frequency has the positive correlation with the equivalent stiffness of the rock, the seal, the copper guide sleeve and the oil. The equivalent stiffness of the oil and seals are the most important factor. The characteristics of the vibration load can be achieved in terms of the analysis of the vibration performance of hydraulic cylinder, and may provide the basement of the damage analysis for the hydraulic cylinder.
LI Lina,YU Haidonga,b,TAO Jianfenga,LIU Chenglianga
. Vibration Performance Analysis for the Gripper Cylinder of Tunnel Boring Machine with Variable Stiffness[J]. Journal of Shanghai Jiaotong University, 2017
, 51(9)
: 1058
-1064
.
DOI: 10.16183/j.cnki.jsjtu.2017.09.006
［1］HUO J, WU H, YANG J, et al. Multidirectional coupling dynamic characteristics analysis of TBM cutterhead system based on tunnelling field test［J］. Journal of Mechanical Science and Technology, 2015, 29(8): 30433058.
［2］REN Haoling, XIE Haibo, YANG Huayong, et al. Asymmetric vibration characteristics of twocylinder fourstroke singlepiston hydraulic free piston engine［J］. Journal of Central South University, 2014, 21(10): 37623768.
［3］SOCHACKI W, BOLD M. Vibration of crane radius change system with internal damping［J］. Journal of Applied Mathematics and Computational Mechanics, 2013, 12(2): 97103.
［4］BAYN A, GASCN F, MEDINA R, et al. On the flexural vibration of cylinders under axial loads: Numerical and experimental study［J］. Journal of Sound and Vibration, 2012, 331(10): 23152333.
［5］王林鸿，吴波，杜润生，等. 液压缸运动的非线性动态特征［J］. 机械工程学报, 2007, 43(12): 1219.
WANG Linhong, WU Bo, DU Runsheng, et al. Nonlinear dynamics characteristics of moving hydraulic cylinder［J］. Journal of Mechanical Engineering, 2007, 43(12): 1219.
［6］王林鸿，杜润生，吴波，等. 液压缸低速运动的动态分析［J］. 中国机械工程, 2006, 17(20): 20982101.
WANG Linhong, DU Runsheng, WU Bo, et al. Dynamic analysis on slowly moving hydraulic cylinder［J］. China Mechanical Engineering, 2006, 17(20): 20982101.
［7］SOCHACKI W. Modelling and analysis of damped vibration in hydraulic cylinder［J］. Mathematical and Computer Modelling of Dynamical Systems, 2015, 21(1): 2337.
［8］YLINEN A, MARJAMKI H, MKINEN J. A hydraulic cylinder model for multibody simulations［J］.Computers & Structures, 2014, 138(138): 6272.
［9］彭欢, 张怀亮, 邹伟，等. 硬岩掘进机推进液压缸结构参数优化［J］. 机械工程学报, 2014, 50(21): 7683.
PENG Huan, ZHANG Huailiang, ZOU Wei, et al. Structure parameters optimization of thrust hydraulic cylinder under foundation vibration［J］. Journal of Mechanical Engineering, 2014, 50(21): 7683.
［10］姜万录，朱勇，郑直，等. 电液伺服系统非线性振动机理及试验研究［J］. 机械工程学报, 2015, 51(4): 175184.
JIANG Wanlu, ZHU Yong, ZHENG Zhi, et al. Nonlinear vibration mechanism of electrohydraulic servo system and its experimental verification［J］. Journal of Mechanical Engineering, 2015, 51(4): 175184.
［11］ZHANG T, ZHANG N. Vibration modes and the dynamic behaviour of a hydraulic plunger pump［J］. Shock and Vibration, 2016, 501: 9679542.
［12］SIMSEK M. Bidirectional functionally graded materials (BDFGMs) for free and forced vibration of Timoshenko beams with various boundary conditions［J］. Composite Structures, 2015, 133: 968978.
［13］郝培，余海东，赵勇. 考虑隧道表面特性的硬岩全断面掘进装备撑靴接触界面刚度分析［J］. 上海交通大学学报, 2014, 48(6): 827832.
