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

Author

Listed:
  • Qingliang Zeng

    (College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
    College of Information Science and Engineering, Shandong Normal University, Jinan 250358, China)

  • Zhaoji Li

    (College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Lirong Wan

    (College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Dejian Ma

    (College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Jiantao Wang

    (College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

Abstract

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.

Suggested Citation

  • Qingliang Zeng & Zhaoji Li & Lirong Wan & Dejian Ma & Jiantao Wang, 2022. "Research on Dynamic Characteristics of Canopy and Column of Hydraulic Support under Impact Load," Energies, MDPI, vol. 15(13), pages 1-20, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:13:p:4638-:d:847241
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    References listed on IDEAS

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    1. Dawid Szurgacz, 2021. "Dynamic Analysis for the Hydraulic Leg Power of a Powered Roof Support," Energies, MDPI, vol. 14(18), pages 1-12, September.
    2. Dawid Szurgacz & Jarosław Brodny, 2020. "Adapting the Powered Roof Support to Diverse Mining and Geological Conditions," Energies, MDPI, vol. 13(2), pages 1-22, January.
    3. Dawid Szurgacz & Jarosław Brodny, 2019. "Analysis of the Influence of Dynamic Load on the Work Parameters of a Powered Roof Support’s Hydraulic Leg," Sustainability, MDPI, vol. 11(9), pages 1-13, May.
    4. Janina Świątek & Tomasz Janoszek & Tomasz Cichy & Kazimierz Stoiński, 2021. "Computational Fluid Dynamics Simulations for Investigation of the Damage Causes in Safety Elements of Powered Roof Supports—A Case Study," Energies, MDPI, vol. 14(4), pages 1-20, February.
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    Cited by:

    1. Qingliang Zeng & Chen Ma & Zhaosheng Meng & Jiantao Wang & Penghui Xu & Xiaowan Lei, 2023. "Dynamic Response Difference of Hydraulic Support under Mechanical-Hydraulic Co-Simulation: Induced by Different Roof Rotation Position and Hysteresis Effect of Relief Valve," Energies, MDPI, vol. 16(4), pages 1-17, February.

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