Results 21 to 30 of about 1,427,336 (267)

Parametric Study on Strength Characteristics of Two-Dimensional Ice Beam Using Discrete Element Method

open access: yesApplied Sciences, 2021
Strength characteristics of a two-dimensional ice beam were studied using a discrete element method (DEM). The DEM solver was implemented by the open-source discrete element method libraries.
Seongjin Song, Wooyoung Jeon, Sunho Park
doaj   +1 more source

Multibody Model for the Design of a Rover for Agricultural Applications: A Preliminary Study

open access: yesMachines, 2022
The employment of vehicles such as rovers equipped with automictic and robotic systems in agriculture is an emerging field. The development of suitable simulation models can aid in the design and testing of agricultural rovers before prototyping.
Filippo Califano   +3 more
doaj   +1 more source

Modeling the Contact Mechanics of Hydrogels [PDF]

open access: yesLubricants, 2019
A computationally lean model for the coarse-grained description of contact mechanics of hydrogels is proposed and characterized. It consists of a simple bead-spring model for the interaction within a chain, potentials describing the interaction between monomers and mold or confining walls, and a coarse-grained potential reflecting the solvent-mediated ...
Martin H. Müser   +2 more
openaire   +2 more sources

Finite Element of Static Contact between Rolling Element and Raceway of Cageless Ball Bearing

open access: yesJournal of Harbin University of Science and Technology, 2022
At present, scholars at home and abroad have paid attention to the improvement of bearing capacity and lightweight due to the removal of cage, but the theoretical research on rolling element contact is less.The principle of adding local variable speed ...
ZHAO Yan-ling   +3 more
doaj   +1 more source

Development of a Contact Force Model Suited for Spherical Contact Event

open access: yesActuators, 2023
The stiffness coefficient suited for a spherical contact body is developed by means of a contact semi-angle based on Steuermann’s theory. The new static contact force model is close to the results of FEM when the index of the polynomial is equal to 2 ...
Siyuan Wang, Peng Gao
doaj   +1 more source

Fractal Model of Contact Thermal Stiffness

open access: yesMachines, 2022
The continuity, self-similarity, and self-affinity of a microscopic contact surface can be described by the Weierstrass–Mandelbrot (W–M) function in fractal theory. To address the problems that the existing normal contact load fractal model does not take
Yunshuai Chen   +4 more
doaj   +1 more source

Application of the Discrete Element Method for Manufacturing Process Simulation in the Pharmaceutical Industry

open access: yesPharmaceutics, 2019
Process simulation using mathematical modeling tools is becoming more common in the pharmaceutical industry. A mechanistic model is a mathematical modeling tool that can enhance process understanding, reduce experimentation cost and improve product ...
Su Bin Yeom   +5 more
doaj   +1 more source

Models for Digitally Contact-Traced Epidemics

open access: yesIEEE Access, 2022
This work was partially funded by the H2020 SoBigData++ (Grant No 871042), H2020 HumaneAI-Net (Grant No 952026), and CHIST-ERA SAI (Grant No not yet available ...
Boldrini C, Passarella A, Conti M
openaire   +4 more sources

Independent Contact Regions based on a patch contact model [PDF]

open access: yes2012 IEEE International Conference on Robotics and Automation, 2012
The synthesis of multi-fingered grasps on nontrivial objects requires a realistic representation of the contact between the fingers of a robotic hand and an object. In this work, we use a patch contact model to approximate the contact between a rigid object and a deformable anthropomorphic finger.
Krzysztof Andrzej Charusta   +3 more
openaire   +1 more source

Justification of Dual-Level Opener Parameters in Digital Twin by the Discrete Element Method

open access: yesИнженерные технологии и системы
Introduction. The discrete element method is the most promising method for modeling soil tillage. With the use of DEM modeling it is possible to create a digital twin for technological process of interaction of tools with soil, analyze the operation of ...
Salavat G. Mudarisov   +2 more
doaj   +1 more source

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