离散元法及其在铲斗设计中的应用Discrete Element Method and Its Application to Bucket Design
侯亚娟;王吉生;李爱峰;李婧锡;
摘要(Abstract)：
介绍离散元法的基本理论及研究现状,阐述离散元法在铲斗设计中的应用现状和最新进展,并结合课题组的研究成果,将离散元法用于矿用挖掘机铲斗分析。通过采用EDEM软件,建立待挖掘物料的仿真颗粒模型,对矿用挖掘机铲斗的对数螺旋轨迹进行合理的简化,对其以不同岩石为挖掘对象时的挖掘过程进行离散元仿真,获取铲斗与物料的接触力情况以及物料在铲斗内的填充信息,实现挖掘物料的可视化。该方法可为不同物料下铲斗的优化设计提供一种具有良好发展前景的途径。
关键词(KeyWords)： 离散元法;铲斗;仿真;优化设计
基金项目(Foundation): 国家高技术研究发展计划(“863”计划)项目(2012AA062001)
作者(Author): 侯亚娟;王吉生;李爱峰;李婧锡;
Email:
DOI:
参考文献(References)：
- [1]胡国明.颗粒系统的离散元素法分析仿真-离散元素法的工业应用与EDEM软件简介[M].武汉:武汉理工大学出版社,2010.
- [2]王国强,郝万军,王继新.离散单元法及其在EDEM上的实践[M].西安:西北工业大学出版社,2010.
- [3]徐爽,朱浮声,张俊.离散元法及其耦合算法的研究综述[J].力学与实践,2013(1):8-14,19.
- [4]Coetzee C J,Els D N J.Modelling Excavator Bucket Filling with DEM[J].Fifth World Congress on Computational Mechanics,2002(7):7-12.
- [5]Coetzee C J,Els D N J.The numerical modelling of excavator bucket filling using DEM[J].Journal of Terramechanics,2009,46(5):217-227.
- [6]Nezami E G,Hashash Y,Zhao D,et al.Simulation of front end loader bucket-soil interaction using discrete element method[J].International journal for numerical and analytical methodsingeomechanics,2007,31(9):1147-1162.
- [7]朴香兰,王国强,张占强,等.水平转弯颗粒流的离散元模拟[J].吉林大学学报:工学版,2010(1):98-102.
- [8]梁峰.散料输送系统转载站料流的DEM仿真研究[D].沈阳:东北大学,2009.
- [9]Gonzáalez-Montellano C,R amirez A,Fuentes J M,et al.Numerical effects derived from en masse filling of agricultural silos in DEM simulations[J].Computers and Electronics in Agriculture,2012,81:113-123.
- [10]蒋绍军,陈羽,杜杏,等.装载机铲斗斗形设计小议[J].工程机械,2012,43(11):12-16.
- [11]Takahashi H.Simulation of the resistive forces acting on the bucket of wheel loader by use of DEM[C]//Proc.5th Asia-Pacific R egional Conference ISTVS.1998:37-44.
- [12]Coetzee C J,Basson A H,Vermeer P A.Discrete and continuum modelling of excavator bucket filling[J].Journal of terramechanics,2007,44(2):177-186.
- [13]Cleary P W.The filling of dragline buckets[J].Mathematical Engineering in Industry,1998,7(1):1-24.
- [14]Cleary P W.DEM simulation of industrial particle flows:case studies of dragline excavators,mixing in tumblers and centrifugal mills[J].Powder Technology,2000,109(1):83-104.
- [15]Cleary P W.Large scale industrial DEM modelling[J].EngineeringComputations,2004,21(2/3/4):169-204.
- [16]Cleary P W.DEM prediction of industrial and geophysical particle flows[J].Particuology,2010,8(2):106-118.
- [17]Coetzee C J,Els D N J,Dymond G F.Discrete element parameter calibration and the modelling of dragline bucket filling[J].Journal of Terramechanics,2010,47(1):33-44.
文章评论(Comment)：
|
||||||||||||||||||
|
||||||||||||||||||