Relationship of coefficient of restitution and damping coefficient of rock

被引：0

作者：

Arowojolu O. ^{[1
]}

Jung S.J. ^{[1
]}

Abu Abdo A.M. ^{[2
]}

机构：

[1] Department of Civil Engineering, University of Idaho, P.O. Box 441022, Moscow, 83844-1022, ID

[2] Department of Civil Engineering, Emirates College of Technology, P.O. Box 41009, Abu Dhabi

来源：

Jung, S.J. (sjung@uidaho.edu) | 1600年 / Inderscience Publishers卷 / 11期

关键词：

Coefficient of restitution; Damping coefficient; Ore pass; Rock flow;

D O I：

10.1504/IJMME.2020.111934

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

When rock travels through an ore pass, it falls, hits other rock materials, and ore passes walls. It is essential to understand the material flow and rock particle interactions in an ore pass to avoid hang-ups and accidents involving rock flow. Part of that understanding is to comprehend how rock reacts when it collides with other particles and other materials. It is difficult to determine the coefficient of restitution and the damping coefficient experimentally simultaneously. The objective of this study was to investigate the relation between the two parameters and determine their correlation mathematically. While it is difficult to measure the damping coefficient of rocks in a laboratory directly, results showed that it could be determined mathematically using the coefficient of restitution. Thus, it facilitates the use of rock flow dynamics simulation programs. Furthermore, the analysis showed that the coefficient of restitution exponentially decayed as the damping coefficient increased. Copyright © 2020 Inderscience Enterprises Ltd.

引用

页码：323 / 337

页数：14

共 50 条

[1] A coefficient of restitution of rock materials
Imre, B.
Raebsamen, S.
Springman, S. M.
COMPUTERS & GEOSCIENCES, 2008, 34 (04) : 339 - 350
[2] COEFFICIENT OF RESTITUTION INTERPRETED AS DAMPING IN VIBROIMPACT
HUNT, KH
CROSSLEY, FRE
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1975, 42 (02): : 440 - 445
[3] Research on restitution coefficient of rock fall
Key Laboratory of Mountain Hazards and Surface Process, Chinese Acad. of Sci., Chengdu 610041, China
不详
Rock Soil Mech, 2009, 3 (623-627):
[4] COEFFICIENT OF RESTITUTION INTERPRETED AS DAMPING IN VIBROIMPACT.
Hunt, K.H.
Crossley, F.R.E.
American Society of Mechanical Engineers (Paper), 1975, (75 -APM-H):
[5] Models for Materials Damping, Loss Factor, and Coefficient of Restitution
Sherif, Hany A.
Almufadi, Fahad. A.
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 2020, 142 (01):
[6] ON THE COEFFICIENT OF RESTITUTION
TAKEDA, E
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1953, 8 (06) : 790 - 790
[7] Identification of the relationship between the coefficient of restitution and the impact velocity
Galeani, S
Menini, L
Tornambè, A
LAGRANGIAN AND HAMILTONIAN METHODS IN NONLINEAR CONTROL 2003, 2003, : 275 - 280
[8] Maximum coefficient of restitution
Ehrlich, R
AMERICAN JOURNAL OF PHYSICS, 1996, 64 (03) : 203 - 203
[9] Impacts and the coefficient of restitution
Marghitu, Dan
International Journal of Acoustics and Vibrations, 2009, 14 (04):
[10] Impacts and the Coefficient of Restitution
Marghitu, Dan
INTERNATIONAL JOURNAL OF ACOUSTICS AND VIBRATION, 2009, 14 (04): : 178 - 178

← 1 2 3 4 5 →