Analysis of dynamic characteristics of an experimental bench of high-pressure water fracturing assisted cutting

• Autorzy: Liu Zhiming , Zhang Qiang , Sun Yuliang , Liu Junming

Identyfikatory

DOI

10.15632/jtam-pl/161478

• Języki publikacji: EN

Abstrakty

EN

Aiming at the problem that the cutting efficiency of a drum shearer is low when mining hard coal seams, an experimental bench of high-pressure water fracturing assisted cutting is designed. Compared with normal ones, the maximum equivalent stress of the improved experimental bench is reduced by 55.38%, and the maximum total deformation is reduced by 27.23%. According to the results of dynamic response analysis, it is concluded that the experimental bench of high-pressure water fracturing assisted cutting is stable and reliable under extreme working conditions, and meets design requirements for strength and stiffness.

Słowa kluczowe

EN

high-pressure water fracturing; experimental bench; dynamic characteristics

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2023
• Tom: Vol. 61 nr 2
• Strony: 317--330
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Liu Zhiming

• School of Mechanical Electronic and Information Engineering, China University of Mining and Technology-Beijing, Beijing, China

autor

Zhang Qiang

• College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Tsingtao, China

autor

Sun Yuliang

• College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Tsingtao, China

autor

Liu Junming

• College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Tsingtao, China

Bibliografia

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• 6. Jiang Z.M., Feng S.R., Fu S., 2012, Coupled hydro-mechanical effect of a fractured rock mass under high water pressure, Journal of Rock Mechanics and Geotechnical Engineering, 4, 1, 88-96.
• 7. Li H.S., Liu S.Y., Zhu Z.C., Liu H., Zhang D., Guo C., 2021, Experimental investigation on rock breaking performance of cutter assisted with hydraulic fracturing, Engineering Fracture Mechanics, 248, 107710.
• 8. Liu S.Y., Cui S., Li H.S., Zhou F., Xu B., Hu Y., 2022, Impact characteristics of rock breaking using a conical pick assisted with abrasive slurry jet, Engineering Fracture Mechanics, 271, 108647.
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• 12. Xi Y., Wang W., Fan L.F., Zha C.Q., Li J., Liu G.H., 2022, Experimental and numerical investigations on rock-breaking mechanism of rotary percussion drilling with a single PDC cutter, Journal of Petroleum Science and Engineering, 208, Part B, 109227.
• 13. Zhang Q., Wang C., Tian Y., 2022, Numerical and experimental study on crushing properties of hard coal using impacting-cutting technique, Shock and Vibration, 2022, 7091553.
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• 15. Zhao Y., Zhang C.S., Zhang Z.Z., Gao K., Li J.S., Xie X.B., 2021, The rock breaking mechanism analysis of axial ultra-high frequency vibration assisted drilling by single PDC cutter, Journal of Petroleum Science and Engineering, 205, 108859.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).