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Dynamic Response Analysis of a Novel Anti-Impact Pressure Balance Jack

Author

Listed:
  • Lirong Wan

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

  • Xuehui Yu

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

  • Dejian Ma

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

  • Zhaosheng Meng

    (State Key Laboratory of Mining Disaster Prevention and Control Cofounded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China)

  • Qingliang Zeng

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

  • Guoqing Qi

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

Abstract

Coal resources perform an important role in China’s energy structure. Hydraulic support is the main supporting equipment of fully mechanized mining face in coal mines. Because the hydraulic support frequently bears the impact pressure from the working face, it is very easy to cause failure of the balance jack. In order to solve the problem that the balance jack easily damaged by impact and improve the impact resistance of the hydraulic support, an improved fast response balance jack with multiple adaptive buffers was proposed in this paper. The energy dissipation characteristics of the balance jack were analyzed by establishing the mathematical model of the multiple buffering process of it. Based on ADAMS, the dynamic simulation model of the hydraulic support was constructed, and the mechanical response characteristics of the proposed balance jack and the traditional balance jack under different impact loads were compared and analyzed. By changing the equivalent stiffness of the novel balance jack system, the influence of different initial inflation pressure and length of the buffer cavity on the dynamic performance of the novel balance jack was discussed. The results show that compared with the traditional balance jack, the multi-adaptive response balance jack proposed in this paper can reduce the peak force of the hinge point by about 24.6% and the fluctuation frequency was also significantly reduced under the ultimate load condition at the front end of the top beam, which has better impact resistance. When the initial inflation pressure of the buffer cavity is 40~45 MPa and the initial length is less than 105 mm, a better buffer effect can be achieved. This study provides a new solution to solve the failure problem of the balance jack under the underground impact pressure and improve the safety and reliability of hydraulic support.

Suggested Citation

  • Lirong Wan & Xuehui Yu & Dejian Ma & Zhaosheng Meng & Qingliang Zeng & Guoqing Qi, 2022. "Dynamic Response Analysis of a Novel Anti-Impact Pressure Balance Jack," Energies, MDPI, vol. 15(14), pages 1-15, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:14:p:5236-:d:866455
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    References listed on IDEAS

    as
    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, 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.
    3. Wei-bin Guo & Hong-sheng Wang & Guo-wei Dong & Lei Li & Yao-guang Huang, 2017. "A Case Study of Effective Support Working Resistance and Roof Support Technology in Thick Seam Fully-Mechanized Face Mining with Hard Roof Conditions," Sustainability, MDPI, vol. 9(6), pages 1-17, June.
    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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