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Modeling and Simulation of Cone Crushers

Andreas Johansson
2009 IFAC Proceedings Volumes  
Simulations show that the model exhibits the expected behavior of a cone crusher.  ...  A generic structure for dynamic models of cone crushers is presented, in the form of a partial differential equation depending on both time and a spatial variable as well as the size distribution of the  ...  ACKNOWLEDGEMENTS Financing of this research from the Hjalmar Lundbohm research center funded by the Swedish iron ore company LKAB is greatly appreciated.  ... 
doi:10.3182/20091014-3-cl-4011.00004 fatcat:k5kngonkijerzgmvnps4o3l4mi

Volume conserving finite element simulations of deformable models

Geoffrey Irving, Craig Schroeder, Ronald Fedkiw
2007 ACM Transactions on Graphics  
We propose a numerical method for modeling highly deformable nonlinear incompressible solids that conserves the volume locally near each node in a finite element simulation.  ...  In the area of finite element simulation, [Picinbono et al. 2001 ] added a volume preserving force to each tetrahedron, a technique similar to the notion of quasi-incompressibility (see [Simo and Taylor  ...  Although our interest is in physically based simulation, constant volume deformations are also of interest in shape modeling, e.g. [Yoon and Kim 2006; Angelidis et al. 2006 ].  ... 
doi:10.1145/1276377.1276394 fatcat:afhn4b6ex5glvf3vsozicwqkvm

Volume conserving finite element simulations of deformable models

Geoffrey Irving, Craig Schroeder, Ronald Fedkiw
2007 ACM Transactions on Graphics  
We correct errors in volume without introducing oscillations by treating position and velocity in separate implicit solves.  ...  We propose a numerical method for modeling highly deformable nonlinear incompressible solids that conserves the volume locally near each node in a finite element mesh.  ...  The total volume error remained below 1.7% throughout the simulation, and was lower than 0.1%, 0.5%, and 1% until the sphere reached 13%, 2.3%, and 1.4% of its original thickness, respectively.  ... 
doi:10.1145/1239451.1239464 fatcat:a6compajiba7dnpmllalwh4pty

Simulation of low power MAC protocols for wireless sensor networks

Amre El-Hoiydi, Jean-Dominique Decotignie
2003 IFAC Proceedings Volumes  
This paper presents a simulation model of a radio layer suited for the evaluation of such low power protocols. The model of a proposed low power MAC layer is described as well.  ...  Simulation results are presented and compared with theoretical expressions.  ...  Fig. 13 . 13 Power consumed by NP-CSMA-PS for different length of the preamble (50, 100 and 150 ms), as a function of the transmission attempt rate at each node, and resulting expected lifetime using a  ... 
doi:10.1016/s1474-6670(17)32465-5 fatcat:irxy2o3n25eppotrgia5n6xalm

Structural Modelling of a Molten Salt by Simulated Annealing

Jean-Jacques Legendre, Ludovic Mouron, Gérard S. Picard
1994 ECS Proceedings Volumes  
Redistribution subject to ECS terms of use (see 207.241.231.82  ...  Instead of using the well known periodic boundary, the data derived from neutron diffraction experiments are modified to take into account a spherical limitation of the model.  ...  D_ : Average number of anions per volume unit. g+-(r) : Partial pair distribution function.  ... 
doi:10.1149/199413.0026pv fatcat:lvx363axujbr3n3rrcf3oexydu

(6) A Simulation Study of Na Metabolism Three Types of Body Fluid Volume Regulation

Masahito Nagasaka
1974 Japanese Journal of Medicine  
The main components of this system are a capacity, which may be called as an osmotic volume after A.V. Wolf et al.  ...  Model(o) -> Model(t) h Presumptions for the diagram are: 1) the function to be simulated must be clearly separated from the remaining functions of an organism (i. e., divisibility) and 2) the two homomorphisms  ...  The water load is challenged immediately after volume load, and it is found that Na excretion decreases just as in case of simple volume load in spite of progressive volume expansion and hemodilution.  ... 
doi:10.2169/internalmedicine1962.13.192 fatcat:xwld4qitlvbo3ladnblirikvga

Volume correction for bead model simulations of rotational friction coefficients of macromolecules

Jan Antosiewicz, Dietmar Porschke
1989 The Journal of Physical Chemistry  
Bead model simulations according to Kirkwood and Riseman proved to be very useful for the evaluation of hydrodynamic parameters of macromolecules, but the simulated rotational parameters are known to be  ...  We show that these deviations can be reduced considerably by a correction based on "solvent-accessible volumes", which are defined as the sum of the bead "cones" connected with the solvent-accessible surface  ...  Financial support of this work by the Acknowledgment. All calculations were performed at the facilities of the Gesellschaft fur wissenschaftliche Datenverarbeitung mbH, Gottingen.  ... 
doi:10.1021/j100350a051 fatcat:qdvbxy6gbngmjoghdr5ur6nfly

Mathematical Analysis and Simulation of Ahrens Model in Pulse Combustor

2020 VOLUME-8 ISSUE-10, AUGUST 2019, REGULAR ISSUE  
This paper also brief about dynamic work function of tailpipe with adjustment of frequency which will proceed for system stability and its accuracy.  ...  Mathematical model of Ahrens brief about object zones and its separation.  ...  RESULT AND SIMULATION Figure 2 is simulated result of High constant pressure in Low volume.  ... 
doi:10.35940/ijitee.c1004.0193s220 fatcat:socjil5jkbcc7bcdorq4oq63pq

CFD Fire Simulation Using Mixture Fraction Combustion and Finite Volume Radiative Heat Transfer

J. E. Floyd
2003 Journal of Fire Protection Engineering  
The algorithms have been incorporated in the Fire Dynamics Simulator (FDS), a computer program maintained by the National Institute of Standards and Technology.  ...  Sample calculations are presented demonstrating the performance of the new algorithms, especially as compared to earlier versions of the model.  ...  The total free air volume in the facility was 11,000 m 3 of which the dome contained 4800 m 3 [13] .  ... 
doi:10.1177/1042391503013001002 fatcat:c4rrz6xsjfeqhhqyol2girlwhq

Haptic Simulation of a Gear Selector Lever Using Artificial Potential Fields

Eloísa Garcia–Canseco, Alain Ayemlong–Fokem, Alex Serrarens, Maarten Steinbuch
2010 IFAC Proceedings Volumes  
In this paper, we address the problem of haptic simulation of a gear selector lever using a two degrees-of-freedom mechatronic lever.  ...  To reproduce the behavior of a customary gearshift, we propose suitable virtual artificial potential fields that generate the desired force profiles.  ...  Potential field of an automatic gearshift transmission The desired force pattern for the simulation of an automatic gearshift transmission is the sum of two potential functions.  ... 
doi:10.3182/20100831-4-fr-2021.00075 fatcat:vsong356vfdmhbkasnvdx4erea

Noninvasive measurement of cardiac stroke volume using pulse wave velocity and aortic dimensions: a simulation study

Charles F Babbs
2014 BioMedical Engineering OnLine  
It remains as a challenge for experimentalists to explore further the potential of noninvasive measurement of stroke volume using pulse wave velocity.  ...  stroke volume.  ...  Classically [11, 13] in typical human patients the stroke volume in ml is about 1.5 times pulse pressure in mmHg.  ... 
doi:10.1186/1475-925x-13-137 pmid:25238910 pmcid:PMC4271357 fatcat:quuxbkiup5ft5hkbesgtlt6fca

Self-assembly of amyloid-forming peptides by molecular dynamics simulations

Guanghong Wei
2008 Frontiers in Bioscience  
We first start by characterizing the free energy surface of the Abeta (16-22) dimer, a well-studied system numerically, using molecular dynamics simulations with OPEP coarse-grained force field.  ...  We then turn to the study of the NHVTLSQ peptide in 4-mers and 16-mers, extracting information on the onset of aggregation.  ...  , Abeta (11) (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) (22) (23) (24) (25) and GNNQQNY using various simulations and force fields (16, 17, 23, 43, 55) .  ... 
doi:10.2741/3109 pmid:18508615 fatcat:lj6dfblunjg7jfav3pxx4amf7q

Design an Internet of Things Simulator of Fluid Volume Monitoring System for Petrol Station Underground Tank

Fitria Hidayanti
2020 Indian Journal of Science and Technology  
Objectives: This study aims to design an internet of things simulator of fluid volume monitoring system. Methods: The method used in this research includes simulator design and simulator testing.  ...  Applications: This internet of things simulator of fluid volume monitoring system applicated for the petrol station underground tank.  ...  Design an Internet of Things Simulator of Fluid Volume Monitoring System for Petrol Station Underground Tank 936 / 940 Indian Journal of Science and Technology Vol 13(08), DOI: 10.17485/ijst/2020/v13i08  ... 
doi:10.17485/ijst/2020/v13i08/149931 fatcat:ct2afd3ocnbepe3fznpfrgx6b4

Performance Simulation and Analysis of Occupancy-Based Control for Office Buildings with Variable-Air-Volume Systems

Weimin Wang, Jian Zhang, Michael R. Brambley, Benjamin Futrell
2020 Energies  
13% in both Baltimore (mixed climate) and Chicago (cold climate).  ...  Variable-air-volume (VAV) systems are used in many office buildings. The minimum airflow rate setting of VAV terminal boxes has a significant impact on both energy consumption and indoor air quality.  ...  Introduction Variable-air-volume (VAV) systems are one of the most widely used heating, ventilating, and air-conditioning (HVAC) systems in commercial buildings.  ... 
doi:10.3390/en13153756 fatcat:k62yzz7rxrailifoakp3oubdlq

NUMERICAL SIMULATION OF ELECTRICAL IMPEDANCE TOMOGRAPHY PROBLEM AND STUDY OF APPROACH BASED ON FINITE VOLUME METHOD

Ye. S. Sherina, A. V. Starchenko
2014 Bûlleten' Sibirskoj Mediciny  
This research has been aimed to carry out a study of peculiarities that arise in a numerical simulation of the electrical impedance tomography (EIT) problem.  ...  The finite volume method (FVM) on unstructured triangular mesh is introduced.  ...  NUMERICAL SIMULATION OF ELECTRICAL IMPEDANCE TOMOGRAPHY PROBLEM AND STUDY OF APPROACH BASED ON FINITE VOLUME METHOD Sherina Ye.S., Starchenko A.V.  ... 
doi:10.20538/1682-0363-2014-4-156-164 fatcat:tlxu2ejpiffshn2gawcqdyo7lq
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