基于光滑粒子动力学的煤岩刨刀刨削过程数值模拟  

Numerical simulation study on coal and rock crushing of coal plough

作　　者：岳立新[1] 刘金松 刘宝龙 田晓旭 YUE Lixin;LIU Jinsong;LIU Baolong;TIAN Xiaoxu(Mechanical Engineering College of Liaoning Technical University,123000 Fuxin,China)

机构地区：[1]辽宁工程技术大学机械工程学院,阜新123000

出　　处：《应用力学学报》2023年第4期934-938,共5页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金资助项目(No.51674133)。

摘　　要：为研究刨削参数对刨刀载荷特性的影响规律,对刨刀破煤过程进行仿真,为得到更可靠的仿真数据,采用光滑粒子动力学(SPH)与有限元进行耦合(FEM)对刨刀破煤过程进行模拟,并将仿真结果与传统有限元算法进行比较证明此算法的优越性。通过模拟不同刨削参数下的刨刀的破煤过程,得到刨刀载荷数据。研究结果表明:随着刨削速度的增加,刨刀在刨削过程中的整体受载变化不大,但刨刀所受载荷峰值和波动范围随着随刨削速度的增加而增大;随着刨削深度的增加,刨刀在刨削过程中的整体受载有着明显的变化,具体表现为:刨刀所受载荷峰值和均值随着随刨削深度的增加而增大,但刨削深度对刨刀载荷波动范围影响不明显。In order to study the influence of the planning parameters on the load characteristics of the planer,the coal-breaking process of the planer was simulated.In order to obtain more reliable simulation data,the smooth particle dynamics(SPH)coupling with finite element(FEM)was used to simulate the coal-breaking process of the planer.The superiority of the algorithm is proved by comparing the simulation results with the traditional finite element algorithm.The planer loading data is obtained by simulating the coal breaking process of the planer under different planning parameters.The results show that with the increase of the planning speed,the overall load of the planer during the planning process does not change much,but the peak load and fluctuation range of the planer increases with the planning speed.With the increase of the planning depth,the overall load of the planer during the planning process has obvious changes.The specific performance is as follows:The peak load and mean value of the planer increase with the increase of the planning depth,but the planning depth has no obvious influence on the range of the planer load fluctuation.

关 键 词：光滑粒子动力学 FEM-SPH耦合 刨刀载荷 刨削参数 

分 类 号：TD421[矿业工程—矿山机电]