防冲液压支架点阵吸能结构设计及其性能分析  

Designing and Analyzing Performance of Lattice Energy Absorbing Device for Anti-impact Hydraulic Support

作　　者：沈佳兴[1,2] 徐平[2] 范中海 于英华[2] SHEN Jiaxing;XU Ping;FAN Zhonghai;YU Yinghua(Research Institute of Technology and Equipment for the Exploitation and Utilization of Mineral Resources,Liaoning Technical University,Fuxin 123000,Liaoning,China;School of Mechanical Engineering,Liaoning Technical University,Fuxin 123000,Liaoning,China)

机构地区：[1]辽宁工程技术大学矿产资源开发利用技术及装备研究院,辽宁阜新123000 [2]辽宁工程技术大学机械工程学院,辽宁阜新123000

出　　处：《机械科学与技术》2023年第1期99-105,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：中国煤炭工业协会科学技术研究指导性计划项目(MTKJ2010-290)。

摘　　要：为提高防冲液压支架的让位吸能大小,提高防冲液压支架的安全性,设计一种点阵让位吸能装置。采用有限元仿真的方式分别研究3种典型点阵胞体的比吸能及单位质量支撑力,确定金字塔结构为最佳拓扑胞体结构。采用三因素五水平的正交实验分析胞体高度,胞体立足倾斜宽度及胞体立足直径对点阵芯体的吸能大小及支撑力的影响规律,确定最佳的胞体结构参数。通过仿真分析得到最佳结构参数的金字塔点阵吸能装置的总吸能为1470 kJ,支撑力为4679.76 kN,且支撑力较平稳。证明金字塔结构点阵吸能装置具有优越的吸能性,能够提高防冲液压支架的安全性。In order to increase the energy absorption of the anti-impact hydraulic support and improve its safety,a lattice energy-absorbing device was designed.The specific energy absorption and unit mass support force of three typical lattice cells were studied with the finite element simulation.The pyramid structure was determined to be the best topology of the lattice cells.The three-factor and five-level orthogonal experiment was used to analyze the influence of their body height,body inclination width and body diameter on energy absorption and support force and to determine the best body structural parameters.The simulation analysis shows that the total energy absorption of the pyramid lattice energy absorbing device with the best structural parameters is 1470 kJ and that its support force is 4699.76 kN.The support force changes relatively smoothly.It proves that the lattice energy-absorbing device with the pyramid structure has superior energy absorption and can improve the safety of the anti-impact hydraulic support.

关 键 词：防冲液压支架 安全性 点阵结构 正交实验 

分 类 号：TH122[机械工程—机械设计及理论] TD353[矿业工程—矿井建设]