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颗粒离散元法中阻尼系数、刚度系数和 时步的选取方法
引用本文:杨洋,唐寿高,王居林.颗粒离散元法中阻尼系数、刚度系数和 时步的选取方法[J].计算机辅助工程,2007,16(3):65-68.
作者姓名:杨洋  唐寿高  王居林
作者单位:同济大学,航空航天与力学学院,上海,200092
摘    要:为解决颗粒离散元法(Distinct Element Method,DEM)中阻尼系数等参数选取困难的问题,对岩体工程中的DEM与颗粒DEM进行区分,着重讨论颗粒DEM中阻尼系数、刚度系数和时步等参数的选取方法.这些计算参数的合理选取对保证模拟的真实性具有重要意义.

关 键 词:颗粒离散元法  阻尼系数  刚度系数  时步  颗粒  离散元法  阻尼系数  刚度系数  时步  参数选取  方法  damping  coefficient  methods  Selection  distinct  element  method  granular  step  time  意义  模拟  计算参数  岩体工程  问题  Element
文章编号:1006-0871(2007)03-0065-04
收稿时间:2007-03-12
修稿时间:2007-07-16

Selection methods on damping coefficient,stiffness coefficient and time step in granular distinct element method
YANG Yang,TANG Shougao and WANG Julin.Selection methods on damping coefficient,stiffness coefficient and time step in granular distinct element method[J].Computer Aided Engineering,2007,16(3):65-68.
Authors:YANG Yang  TANG Shougao and WANG Julin
Affiliation:School of Aerospace Eng.&Applied Mechanics,Tongji Univ., Shanghai 200092, China;School of Aerospace Eng.&Applied Mechanics,Tongji Univ., Shanghai 200092, China;School of Aerospace Eng.&Applied Mechanics,Tongji Univ., Shanghai 200092, China
Abstract:To solve the p roblems of selecting computational parameters in granularDistinct ElementMeth2 od (DEM) , DEM used in rock engineering and granular DEM are differentiated. The selection methods on damp ing coefficient, stiffness coefficient and time step are emphasized. The reasonable selection of these computational parameters p lays an important role in guaranteeing authenticity of simulation
Keywords:granular distinct element method  damping coefficient  stiffness coefficient  time step
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