Damping of rotating beams with particle dampers: Discrete element method analysis

2013 ◽  
Author(s):  
D. N. J. Els
Keyword(s):  
Discrete Element Method ◽  
Discrete Element ◽  
Rotating Beams ◽  
Particle Dampers ◽  
Method Analysis ◽  
Element Method

scholarly journals Discrete element method approach to modelling VPP dampers

2018 ◽  
Vol 157 ◽  
pp. 02014
Author(s):  
Pawel Chodkiewicz ◽  
Jakub Lengiewicz ◽  
Robert Zalewski
Keyword(s):  
Discrete Element Method ◽  
Granular Medium ◽  
Discrete Element ◽  
Modeling And Analysis ◽  
Novel Approach ◽  
Particle Dampers ◽  
Pressure Boundary Conditions ◽  
Dem Model ◽  
Method Approach ◽  
Element Method

In this paper, we present a novel approach to modeling and analysis of Vacuum Packed Particle dampers (VPP dampers) with the use of Discrete Element Method (DEM). VPP dampers are composed of loose granular medium encapsulated in a hermetic envelope, with controlled pressure inside the envelope. By changing the level of underpressure inside the envelope, one can control mechanical properties of the system. The main novelty of the DEM model proposed in this paper is the method to treat special (pressure) boundary conditions at the envelope. The model has been implemented within the open-source Yade DEM software. Preliminary results are presented and discussed in the paper. The qualitative agreement with experimental results has been achieved.

scholarly journals Discrete element method analysis of single wheel performance for a small lunar rover on sloped terrain

2010 ◽  
Vol 47 (5) ◽  
pp. 307-321 ◽  
Author(s):  
H. Nakashima ◽  
H. Fujii ◽  
A. Oida ◽  
M. Momozu ◽  
H. Kanamori ◽  
...  
Keyword(s):  
Discrete Element Method ◽  
Discrete Element ◽  
Lunar Rover ◽  
Method Analysis ◽  
Element Method

From Static Response to Impact Loading in Soils: a Discrete Element Method Analysis

2009 ◽  
Author(s):  
Jean-Patrick Plassiard ◽  
Frédéric-Victor Donzé ◽  
Masami Nakagawa ◽  
Stefan Luding
Keyword(s):  
Discrete Element Method ◽  
Impact Loading ◽  
Discrete Element ◽  
Static Response ◽  
Method Analysis ◽  
Element Method

scholarly journals Criterion for Imminent Failure During Loading—Discrete Element Method Analysis

2021 ◽  
Vol 9 ◽  
Author(s):  
Wojciech Dȩbski ◽  
Srutarshi Pradhan ◽  
Alex Hansen
Keyword(s):  
Discrete Element Method ◽  
Elastic Energy ◽  
Fiber Bundle ◽  
Load Sharing ◽  
Discrete Element ◽  
Rate Of Change ◽  
Change Rate ◽  
Fiber Bundle Model ◽  
Method Analysis ◽  
Element Method

It has recently been reported that the equal load sharing fiber bundle model predicts the rate of change of the elastic energy stored in the bundle reaches its maximum before catastrophic failure occurs, making it a possible predictor for imminent collapse. The equal load sharing fiber bundle model does not contain central mechanisms that often play an important role in failure processes, such as localization. Thus, there is an obvious question whether a similar phenomenon is observed in more realistic systems. We address this question using the discrete element method to simulate breaking of a thin tissue subjected to a stretching load. Our simulations confirm that for a class of virtual materials which respond to stretching with a well-pronounced peak in force, its derivative and elastic energy we always observe an existence of the maximum of the elastic energy change rate prior to maximum loading force. Moreover, we find that the amount of energy released at failure is related to the maximum of the elastic energy absorption rate.

Discrete Element Method Analysis of the Impact Forces on a Garlic Bulb by the Roller of a Garlic Harvester

2019 ◽  
Vol 44 (4) ◽  
pp. 208-217 ◽  
Author(s):  
Donghyeok Park ◽  
Chun Gu Lee ◽  
Hana Park ◽  
Seung Hwan Baek ◽  
Joong Yong Rhee
Keyword(s):  
Discrete Element Method ◽  
Discrete Element ◽  
Impact Forces ◽  
Garlic Bulb ◽  
The Impact ◽  
Method Analysis ◽  
Element Method
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