Lateral response of cable-guided hoisting system with time-varying length: Theoretical model and dynamics simulation verification

Jinjie, Wang; Cao, Guohua; Zhu, Zhencai; Wang, Yandong; Peng, Weihong

doi:10.1177/0954406214566032

Cited by 23 publications

(25 citation statements)

References 31 publications

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“…In this work, the permitted maximum rope tension of the JKMD-4.5 3 4(III)E floor-type multi-rope friction mine hoist is 900 kN. After optimization, according to equation (3), the maximum rope tension is 176.59 kN which is still far less than the permitted 900 kN. Additionally, according to the literature, 24 to ensure the necessary service life of the mine hoisting rope, the stress value at the arbitrary cross section of the rope should not exceed 165 N/mm 2 .…”

Section: Determination Of the Optimal Hoisting Loadmentioning

confidence: 99%

Optimization of hoisting parameters in a multi-rope friction mine hoist based on the multi-source coupled vibration characteristics of hoisting catenaries

Yao

Deng

Xiao

2017

Advances in Mechanical Engineering

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To avoid catenary collision in a multi-rope friction mine hoist, in this study, the relevant hoisting parameters based on the multi-source coupled vibration characteristics of hoisting catenaries are optimized. First, the multi-source coupled vibration characteristics of hoisting catenaries were investigated based on an established theoretical model, indicating that the hoisting acceleration is the weak coupled hoisting parameter, and the constant hoisting velocity, hoisting load, and catenary length are the strong coupled hoisting parameters. Subsequently, a safety threshold of 50 mm for the transverse amplitude of a catenary in this work was defined and the criterion of parameter optimization was established. Finally, by applying the multi-source coupled vibration model of the catenary, the strong coupled hoisting parameters, the constant hoisting velocity, the hoisting load, and the length of the catenary were optimized to make the transverse amplitude of the catenary less than the safety threshold of 50 mm. The proposed methods of parameter optimization may be new constraints to determine the optimal hoisting parameters in the design or maintenance phase of the floortype multi-rope friction mine hoist.

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Section: Determination Of the Optimal Hoisting Loadmentioning

confidence: 99%

Optimization of hoisting parameters in a multi-rope friction mine hoist based on the multi-source coupled vibration characteristics of hoisting catenaries

Yao

Deng

Xiao

2017

Advances in Mechanical Engineering

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“…It should be noted that these (3 + 3) generalized coordinates are not independent, however, the geometric matching conditions Eqs. (6) and (8) yield the holonomic constraints of the generalized coordinates, where = ( , , , , ) is a vector including all the constraint conditions; = ∂ / ∂ is the Jacobian matrix of the constraint Eqs. (6) and (8), which is a 5×(3 + 3) matrix; and = ( , , , , ) are called the Lagrangian multipliers [20], which denote the constraint forces between the hoisting cage and the three cables.…”

Section: Spatial Discretizationmentioning

confidence: 99%

“…The cable-guided bucket hoisting system [6] is usually exerted to sink the deep vertical shaft, and then temporarily converted into one cable-guided cage hoisting system for transportation of equipment. In the typical cage hoisting system shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…In general, the guiding cables are simplified to a spring-mass system with a single degree of freedom and the high-order modes are omitted by the linear deformation assumption [6], thus, it is difficult to describe the whole vibration of the guiding cable. But in this paper, several challenging problems, such as the lateral displacement of the guiding cable and the constraint forces of the guide sleeves, are worked out.…”

Section: Introductionmentioning

confidence: 99%

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Lateral and torsional vibrations of cable-guided hoisting system with eccentric load

Wang¹,

Cao²,

Zhu³

et al. 2016

J. vibroeng.

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Abstract. Theoretical investigation of the lateral and torsional vibrations of the hoisting cage in the cable-guided hoisting system caused by the eccentric load and the flexibility of the guiding cable is presented in this paper. The assumed modes method (AMM) is adopted to discretize the hoisting cable and two guiding cables, then Lagrange equations of the first kind are used to derive the equations of motion, while the geometric relationships between the hoisting cage and the cables are accounted for by the Lagrangian multiplier. Considering all the geometric matching conditions are approximately linear, the differential algebraic equations (DAEs) are transformed to the ordinary differential equations (ODEs). The dynamic responses of the hoisting cage are calculated, and especially the lateral displacements of the guiding cable and the constraints forces at the interfaces are obtained. Preload plays a vital role in affecting the cage vibration, thus, the effects of the total preload and the tension difference are analyzed. The numerical results indicate increasing the total preload can decrease the vibration displacements, while the tension difference has little impact on the vibration but can obviously change the constraint forces. In addition, the vibration displacements are directly proportional to the eccentric load, but less sensitive to the hoisting mass.

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“…But this approximate method is not accurate to obtain the minimum stiffness. Some researchers [6][7][8] studied the dynamic lateral deflection of hoisting cable and conveyance and showed the deflections of guide cable indirectly. Wu et al 9 simulated the lateral deflections of conveyances when two conveyances passed each other.…”

Section: Introductionmentioning

confidence: 99%

Lateral stiffness and deflection characteristics of guide cable with multi-boundary constraints

Yan

Cao

Wang

et al. 2017

Advances in Mechanical Engineering

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Since lateral stiffness of existing wire ropes used as guide cables is difficult to achieve reliable guidance for conveyances in deep shaft wall, deflection-suppressed system is designed to reduce lateral displacement and enhance stiffness of guide cables. Theoretical method about cable stiffness is offered with multi-boundary constraints and validated by finite element method. With application analysis, the results show the lateral displacement and stiffness regulation under different boundary conditions. When guide cable tensions increase, the minimum lateral stiffness increases rapidly and later tends to vary linearly with two boundaries constrained, and its situation gradually moves to the middle. Besides, the increased boundaries lead to an increase in the minimum lateral stiffness by a certain linear ratio and the move of its position to the middle on the cable. The required minimum tensions at different boundaries are accordingly obtained. When the guide cables are arranged in different directions of the conveyance, their stiffness characteristics are revealed. Therefore, the arrangement of the two guide cables is proposed under multi-boundary constraints. The above study can be useful for reducing the conveyance deflection in cable-guided system and provide reference when selecting guide cable with multi-boundary constraints.

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Lateral response of cable-guided hoisting system with time-varying length: Theoretical model and dynamics simulation verification

Cited by 23 publications

References 31 publications

Optimization of hoisting parameters in a multi-rope friction mine hoist based on the multi-source coupled vibration characteristics of hoisting catenaries

Optimization of hoisting parameters in a multi-rope friction mine hoist based on the multi-source coupled vibration characteristics of hoisting catenaries

Lateral and torsional vibrations of cable-guided hoisting system with eccentric load

Lateral stiffness and deflection characteristics of guide cable with multi-boundary constraints

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