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

被引：8
|
作者：
Zeng, Qingliang [1 ,2 ]
Li, Zhaoji [1 ]
Wan, Lirong [1 ]
Ma, Dejian [1 ]
Wang, Jiantao [1 ]
机构：
[1] Shandong Univ Sci & Technol, Coll Mech & Elect Engn, Qingdao 266590, Peoples R China
[2] Shandong Normal Univ, Coll Informat Sci & Engn, Jinan 250358, Peoples R China
来源：
ENERGIES | 2022年 / 15卷 / 13期
基金：
中国国家自然科学基金;
关键词：
canopy; column; impact load; two-way fluid-structure interaction; impact response; CYLINDER;
D O I：
10.3390/en15134638
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
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.
引用
收藏
页数：20
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