搜索结果: 1-6 共查到“Discrete Element Method”相关记录6条 . 查询时间(0.129 秒)
Numerically simulating impact disruptions of cohesive glass bead agglomerates using the soft-sphere discrete element method
Asteroids, Surfaces Collisional physics Geological processes Regoliths
2015/12/25
We present our implementation of cohesion in the parallel N-body code pkdgrav in order to model small bodies that are not fully monolithic but that have at least some degree of cohesion. Small bodies ...
An implementation of the soft-sphere discrete element method in a high-performance parallel gravity tree-code
Bulk solids Solar system DEM Hopper SSDEM
2015/12/25
We present our implementation of the soft-sphere discrete element method (SSDEM) in the parallel gravitational N-body code pkdgrav, a well-tested simulation package that has been used to provide many ...
Numerical simulations of granular dynamics:I. Hard-sphere discrete element method and tests
Asteroids, Surfaces Collisional physics Geological processes Regoliths
2015/12/25
We present a new particle-based (discrete element) numerical method for the simulation of granular dynamics, with application to motions of particles on small solar system body and planetary surfaces....
High-fidelity modeling of a backhoe digging operation using an explicit multibody dynamics finite element code with integrated discrete element method
Multibody dynamic discrete element method backhoe
2015/1/12
In this thesis, a high- fidelity multibody dynamics model of a backhoe for simulating the digging operation is developed using the DIS (Dynamic Interactions Simulator)multibody dynamics software. Sand...
Modelling of interaction between a snow mantle and a flexible structure using a discrete element method
a snow mantle a flexible structure a discrete element method
2009/12/9
The search of improvement of protective techniques against natural phenomena such as snow avalanches continues to use classic methods for calculating flexible structures. This paper deals with a new m...
气吸振动式排种器种盘内种群运动的离散元分析（Discrete Element Method Simulation of Seeds Motion in Vibrated Bed of Precision Vacuum Seeder）
精密排种器 种群三维运动 离散元法
2009/5/22
根据离散元法的基本思想，采用线性弹簧—阻尼—滑动接触力学模型，编写Matlab模拟程序，分析了气吸振动式精密排种器振动种盘内种群的三维运动规律。为了描述籽粒离散分布程度，给出了体积膨胀系数的计算公式。结果表明，种盘作小幅高频振动，种群可以产生向上抛掷运动而有效分离；膨胀系数随着振动强度的增加而增大，随种层厚度的增加而减小。分析了摩擦因数和碰撞恢复系数对不同层厚种子膨胀系数的影响。在初始层厚参数hs...