冲击载荷作用下纯水支架立柱流固耦合分析  

Analysis of Fluid-solid Coupling of Pure Water Support Column under Impact Load

作　　者：刘贤斌 田莹 于吉洋 范春永 周锋 Liu Xianbin;Tian Ying;Yu Jiyang;Fan Chunyong;Zhou Feng(Sany Heavy Equipment Co.,Ltd.,Shenyang 110027,China;College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]三一重型装备有限公司,沈阳110027 [2]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《煤矿机械》2025年第5期88-93,共6页Coal Mine Machinery

基　　金：国家自然科学基金项目(52374159)。

摘　　要：为实现对纯水支架立柱的流固耦合,采用FEM-SPH方法将纯水支架立柱中缸和底缸内的纯水介质转化为SPH粒子,其他零部件采用有限元网格划分的方法,分析了立柱在不同冲击速度及不同重量的落锤冲击下的动态响应。结果表明:立柱的应力大小和落锤的冲击速度和落锤的重量呈正相关,中缸是整个立柱模型中最薄弱的部分,冲击载荷施加后,中缸的应力迅速达到峰值,然后急剧下降,最后趋于稳定;中缸在受到50 t质量的落锤冲击下受力最大,应力最大值为719.6 MPa,立柱的各个部件的应力最大值均未超过屈服强度,故不会发生损坏。To achieve fluid-solid coupling of the pure water support column,employed the FEM-SPH method to convert the pure water medium in the support column′s middle and bottom cylinders into SPH particles,while other components were divided using finite element meshing.The dynamic responses of the column under different impact velocities and weights of drop hammers were analyzed.The results show that the stress in the column is positively correlated with the impact velocity and weight of the drop hammer.The middle cylinder is the weakest part of the entire column model.After applying the impact load,the stress in the middle cylinder quickly peaks,then rapidly decreases before stabilizing.Under 50 t drop hammer impact,the middle cylinder experiences the highest stress,with a maximum stress value of 719.6 MPa.However,the maximum stresses in all components of the column do not exceed the yield strength,no damage is expected to occur.

关 键 词：纯水支架 流固耦合 动态分析 双伸缩立柱 冲击载荷 

分 类 号：TD355.4[矿业工程—矿井建设]