Force Transmission Analysis of Sliding Block-Type Hydraulic Support under Impact Loads

Zeng, Xinhua; Meng, Guangwei; Zheng, Ke

doi:10.2507/ijsimm18(1)466

Cited by 6 publications

(8 citation statements)

References 17 publications

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“…When the basic roof breaks or gangue falls, the canopy will be affected by the impact load, resulting in the canopy being overloaded or unevenly loaded. In this case, the pin shaft at the canopy hinge often deforms, wears, and even breaks to varying degrees [5][6][7], which has a serious impact on the stable support of hydraulic support and underground safety operation.…”

Section: Introductionmentioning

confidence: 99%

Research on Dynamic Characteristics of Canopy and Column of Hydraulic Support under Impact Load

Zeng

Wan

et al. 2022

Energies

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In the process of coal mining, the canopy and column play an important role in the safety support of hydraulic support. However, due to the complex and changeable coal seam conditions, the hydraulic support is significantly affected by the impact load. This paper aims to reveal the dynamic characteristics of canopy and column under impact load. Firstly, the dynamic model of hydraulic support is established, and the impact response of each hinge point of the canopy is analyzed. Secondly, based on the fluid–structure interaction (FSI) theory, the two-way FSI model of the column is established, and the structural change of the column and the flow field characteristics in the cylinder under the impact load are analyzed. The results show that the front column hinge is more prone to impact failure under impact load. The impact load has a significant impact on the two-level cylinder, the pressure in the cylinder increases, and an eddy current occurs on both sides of the bottom of the cylinder. The research results can provide references for the structural optimization of the hydraulic support with anti-impact load and the strength design of the column.

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Section: Introductionmentioning

confidence: 99%

Research on Dynamic Characteristics of Canopy and Column of Hydraulic Support under Impact Load

Zeng

Wan

et al. 2022

Energies

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“…Nowadays, vehicle dynamics simulations are combined with FEM analysis to include the effect of structural deformations during the dynamic simulation. Integrated multi-body / FEM analysis is also applied in fields as diverse as hydraulics [26,27] or measuring devices [28]. Zeng [26,27] analyses the effect of the bodies stiffness on the loads transmitted to the joints in a sliding block-type support implemented in ADAMS.…”

Section: Introductionmentioning

confidence: 99%

“…Integrated multi-body / FEM analysis is also applied in fields as diverse as hydraulics [26,27] or measuring devices [28]. Zeng [26,27] analyses the effect of the bodies stiffness on the loads transmitted to the joints in a sliding block-type support implemented in ADAMS. Cuesta [28] calculates the measurement error of coordinate measuring arms due to its dynamic deformations.…”

Section: Introductionmentioning

confidence: 99%

Go-Kart Chassis Design Using Finite Element Analysis and Multibody Dynamic Simulation

Sampayo¹,

Luque²,

Mántaras³

et al. 2021

Int. j. simul. model.

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For the accurate design of some types of mechanisms, it is necessary to combine multibody dynamics computer simulations with finite element structural analysis. These types of mechanisms are the multibody mechanisms in which the body (frame) stiffness of some of the bodies have the same magnitude as some of their elastic elements. With this in mind, the traditional go-kart chassis design process is reviewed. The traditional approach to evaluate the structural properties of its frame consists of an iterative process in which FEM techniques are applied considering constant load cases. These load cases are defined according to the maximum stresses to which it will be subjected during its operation (circulation in a race circuit). However, as it will be proven in this work, the load case will depend on the design of the frame itself. Due to the stiffness of the frame, for the same driving conditions (vehicle trajectory and speed) the structural load condition varies significantly. A design methodology is proposed for this type of system that combines multibody simulation and finite elements.

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“…[1][2][3] Its safety and reliability are very important for the safe mining of coal mines. In order to improve design quality, many researchers have carried out a lot of research on static strength [4][5][6][7] and dynamic behaviors [8][9][10] of hydraulic support. At present, static strength calculation by equivalent loads is widely used to assure the design quality.…”

Section: Introductionmentioning

confidence: 99%

Effects of boundary conditions on stress distribution of hydraulic support: A simulation and experimental study

Lin

Yang

et al. 2021

Advances in Mechanical Engineering

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This paper analyzed the effects of boundary conditions on the stress distribution of hydraulic support with the static finite element (FE) model. Five loading conditions are considered in this study, including: 1) canopy torsional loading, 2) canopy eccentric loading, 3) base torsional loading, 4) base diagonal loading, and 5) base symmetrical loading. In order to verify the simulation results obtained from the FE model, the corresponding experiments have also been performed. Based on the comparison between simulation and experimental results, the effects of pin-joint simplified methods and boundary conditions are evaluated in terms of accuracy and efficiency. Moreover, the new elastic-support boundary is also proposed to improve the simulation accuracy under conditions 2, 3, 4, and 5. The results show that bonded contact between the pin and shaft hole has high efficiency and accuracy compared with the frictional contact. The frictional contact boundary is reasonable under condition 1. However, the elastic-support boundary is suggested to be adopted to improve calculation accuracy for the stress distribution of the constraint components (canopy or base) under conditions 2, 3, 4, and 5.

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Force Transmission Analysis of Sliding Block-Type Hydraulic Support under Impact Loads

Cited by 6 publications

References 17 publications

Research on Dynamic Characteristics of Canopy and Column of Hydraulic Support under Impact Load

Research on Dynamic Characteristics of Canopy and Column of Hydraulic Support under Impact Load

Go-Kart Chassis Design Using Finite Element Analysis and Multibody Dynamic Simulation

Effects of boundary conditions on stress distribution of hydraulic support: A simulation and experimental study

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