Establishment of TBM Disc Cutter Dynamic Model for Vertical Vibration

Zhang, Kui; Xia, Yimin; Tan, Qiaoyan; Wang, Kai; Yi, Nian-En

doi:10.1007/978-3-642-10817-4_37

Cited by 6 publications

(3 citation statements)

References 2 publications

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“…Moreover, the response loads of the pair bearings are summed. The balance equation is obtained based on the balance of force and moment [20]. Form Eqs.…”

Section: Multivariate Coupling Contact Model Of Disc Cutter Bearingmentioning

confidence: 99%

Multi-degree-of-freedom coupling dynamic characteristic of TBM disc cutter under shock excitation

Huo,

Sun,

et al. 2015

J. Cent. South Univ.

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When the tunneling boring machine (TBM) cutterhead tunnels, the excessive vibration and damage are a severe engineering problem, thereby the anti-vibration design is a key technology in the disc cutter system. The structure of disc cutter contains many joint interfaces among cutter ring, cutter body, bearings and cutter shaft. On account of the coupling for dynamic contact and the transfer path among joint interface, mechanical behavior of disc cutter becomes extremely complex under the impact of heavy-duty, which puts forward higher requirements for disc cutter design. A multi-degree-of-freedom coupling dynamic model, which contains a cutter ring, a cutter body, two bearings and cutter shaft, is established, considering the external stochastic excitations, bearing nonlinear contact force, multidirectional mutual coupling vibration, etc. Based on the parameters of an actual project and the strong impact external excitations, the modal properties and dynamic responses are analyzed, as well as the cutter shaft and bearings' loads and load transmission law are obtained. Numerical results indicate the maximum radial and axial cutter ring amplitudes of dynamic responses are 0.568 mm and 0.112 mm; the maximum radial and axial vibration velocities are 41.1 mm/s and 38.9 mm/s; the maximum radial and axial vibration accelerations are 94.7 m/s 2 and 58.6 m/s 2 ; the maximum swing angle and angular velocity of cutter ring are 0.007° and 0.0074 rad/s, respectively. Finally, the maximum load of bearing roller is 40.3 kN. The proposed research lays a foundation for structure optimization design of disc cutter and cutter base, as well as model selection, modification and fatigue life of the cutter bearing.

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“…Moreover, the response loads of the pair bearings are summed. The balance equation is obtained based on the balance of force and moment [20]. Form Eqs.…”

Section: Multivariate Coupling Contact Model Of Disc Cutter Bearingmentioning

confidence: 99%

Multi-degree-of-freedom coupling dynamic characteristic of TBM disc cutter under shock excitation

Huo,

Sun,

et al. 2015

J. Cent. South Univ.

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“…The cutterhead and central large gear have identical bearing and central axis, thus they have identical rotation speed. In [7], a vertical vibration model of scraper (scraping cutter) is established for shield TBM cutterhead. In [8][9][10][11][12][13][14][15][16], load torque, hydraulic thrust structure, and composition of cutterhead driving systems are studied or introduced.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Two-Dimensional Nonlinear Vibration Modeling and Analysis for Shield TBM Cutterhead Driving System

Zeng

et al. 2014

Transactions of the Canadian Society for Mechanical Engineering

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This paper establishes a general dynamic two-dimensional nonlinear time-varying (TDNLTV) vibration model with multi-drive shaft for shield tunnel boring machine (TBM) cutterhead driving system. Multipleinput and multiple-output (MIMO) state-space vibration model of cutterhead driving system is also presented. TDNLTV vibration model is simulated, and physical parameters' effects on the vibration response are detailed investigated. A preliminary approach is proposed to reduce vibration or nonlinear vibration behaviors. Dynamic TDNLTV vibration model provides a basic foundation of fault detection and diagnosis (FDD) and health monitoring for cutterhead driving system. i-th induction motor rotor viscous damped after equivalent coupling-i J z,i inertia of the i-th coupling between motor-i and reducer-i b z,i viscous damped of the i-th coupling between motor-i and reducer-i J r,ii -th induction motor rotor inertia b r,i i-th induction motor rotor viscous damped J m large gear inertia b m large gear viscous damped r m large gear radius θ p,i angular displacement of i-th active pinion θ i angular displacement of i-th motor rotor θ m large gear angular displacement ω m large gear angular speed J c,

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“…Later, [15][16][17][18] the load torque of the shield TBM cutterhead was studied. A vertical vibration model was then established for the scrap- ing the cutter of the shield TBM, 19 and a nonlinear and linear kinematics model was established for the cutterhead driving system. [20][21][22] A two-dimensional, nonlinear vibration model of cutterhead driving system has been presented, 23 and the system performances of a hydraulic-driven cutterhead driving system was also studied.…”

Section: Introductionmentioning

confidence: 99%

Study on Linear Vibration Model of Shield TBM Cutterhead Driving System

Li¹,

Yu²,

Zeng³

et al. 2014

IJAV

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In this paper, a general linear time-varying multiple-axis (LTVMA) vibration model of shield tunnel boring machine (TBM) cutterhead driving system is established. The corresponding multiple inputs and multiple outputs (MIMO) state-space model is also presented. The linear vibration model is analysed, and the vibration-torque transfer function matrix and the vibration-torque static gain matrix are obtained. The linear vibration model is simulated, and the physical parameters' effects on the vibration response are investigated. A preliminary approach is proposed to reduce vibration by increasing motor rotor inertia and viscous damped. The LTVMA vibration model provides a solid foundation for fault detection and diagnosis (FDD), as long as the health monitoring of cutterhead driving system. NOMENCLATURE nThe number of cutterhead driving motors; q the reducer speed reduction ratio The large gear's contact vibration displacement along i-th pinion's line-of-action directionThe resistant torque of soil and rocks T 2The friction torque of soil and rocks which chafe with the front of the cutterhead T 3The friction torque of soil and rocks which chafe with the back of the cutterhead T 4The friction torque of soil and rocks which chafe with bulkhead T 5The stirring torque of soil and rocks by cutterhead stirring rodThe friction torque of cutterhead bearings and sealed chamber

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Establishment of TBM Disc Cutter Dynamic Model for Vertical Vibration

Cited by 6 publications

References 2 publications

Multi-degree-of-freedom coupling dynamic characteristic of TBM disc cutter under shock excitation

Multi-degree-of-freedom coupling dynamic characteristic of TBM disc cutter under shock excitation

Dynamic Two-Dimensional Nonlinear Vibration Modeling and Analysis for Shield TBM Cutterhead Driving System

Study on Linear Vibration Model of Shield TBM Cutterhead Driving System

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