Numerical Damping Calibration Study of Particle Element Method-Based Dynamic Relaxation Approach for Modeling Longwall Top-Coal Caving

Numerical Damping Calibration Study of Particle Element Method-Based Dynamic Relaxation Approach for Modeling Longwall Top-Coal Caving

When using the explicit dynamic relaxation approach (DRA) to model the quasi-static rock breakage, fragmentation, and flow problems, especially the top-coal caving question, introducing numerical damping into the solution equation is inevitable for reducing the vibration frequency and impact speed o...

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Bibliographic Details
Main Authors: Hongbin Li, Dongyin Li, Weiyu Zhang, Huamin Li, Shen Wang, Hao Wang, Xiaokai Xu, Zhenfeng Li
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Energies
Subjects:
top-coal caving
numerical damping
dynamic relaxation approach (DRA)
particle element method
Online Access:https://www.mdpi.com/1996-1073/14/9/2348

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https://www.mdpi.com/1996-1073/14/9/2348

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