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

Qingliang Zeng, Zhaoji Li, Lirong Wan, Dejian Ma and Jiantao Wang
Additional contact information
Qingliang Zeng: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, 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

Energies, 2022, vol. 15, issue 13, 1-20

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.

Keywords: canopy; column; impact load; two-way fluid–structure interaction; impact response (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/13/4638/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/13/4638/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:13:p:4638-:d:847241

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().