Results 271 to 280 of about 1,589,316 (316)

Variational Approaches for Contact Models with Multi-Contact Zones

Mediterranean Journal of Mathematics, 2022
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Mariana Chivu Cojocaru, Andaluzia Matei
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Mathematical Modeling in Contact Mechanics

2023
Summary: We present some considerations on the modeling and variational analysis of mathematical models describing the contact between a deformable body and an obstacle. We exemplify our approach by the study of an elasto-visco-plastic problem with a normal compliance and Coulomb friction.
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An Analytical Model of Joint Contact

Journal of Biomechanical Engineering, 1990
The stress distribution in the region of contact between a layered elastic sphere and a layered elastic cavity is determined using an analytical model to simulate contact of articulating joints. The purpose is to use the solution to analyze the effects of cartilage thickness and stiffness, bone stiffness and joint curvature on the resulting stress ...
A W, Eberhardt, L M, Keer, J L, Lewis, V, Vithoontien   +3 more
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Dissipative Contact Force Models

2016
In this chapter, some of most relevant dissipative contact force models utilized in multibody dynamics are presented. In particular, attention is given to the constitutive laws proposed by Kelvin and Voigt, Hunt and Crossley, Lankarani and Nikravesh, and Flores et al. Additionally, other nonlinear contact force models are briefly presented. The contact
Flores, Paulo, Lankarani, Hamid M.
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Semi-analytic method of contact modelling

Proceedings 2006 IEEE International Conference on Robotics and Automation, 2006. ICRA 2006., 2006
An algorithm to improve the accuracy and stability of rigid-body contact force calculation is presented. The algorithm uses a combination of analytic solutions and numerical methods to solve a spring-damper differential equation typical of a contact model. The solution method employs the recently proposed patch method, which especially suits the spring-
Douglas Turk, Gordon F. Wyeth
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Modeling contact talk on television

2019
Drawing inspiration from a broad range of work that focuses on processes of register formation, human contact, and social value this chapter proposes the concept of modeling contact talk. My empirical focus are a range of television broadcasts. I use the term model to refer to how such representations model language in social life as well as how ...
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Privacy Modelling in Contact Tracing

2021 International Conference on Computational Science and Computational Intelligence (CSCI), 2021
Marius Mølnvik Øye, Bian Yang
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Contact Hypersensitivity Models in Mice

2013
The contact hypersensitivity (CHS) reaction is commonly utilized to study cell-mediated host immune responses to epicutaneously applied allergens. This reaction is divided into two distinct phases, the afferent phase and the efferent phase. During the afferent phase of this model, mice are exposed to a contact allergen, which is typically a hapten that
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Modeling of robots in contact with a dynamic environment

IEEE Transactions on Robotics and Automation, 1994
A control-oriented modeling approach for describing kinematics and dynamics of robots in contact with a dynamic environment is presented. In many robotic tasks the manipulator in contact cannot be simply modeled as a kinematically constrained system. Conversely, modeling of robot-environment interactions through dynamic impedance may not fit the task ...
Alessandro De Luca 0001, Costanzo Manes
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Modeling Epidemics with Variable Contact Rates

Theoretical Population Biology, 1995
In this paper we look at models for epidemics where the contact rate is a monotone increasing function of the population density. The background death rate also depends on the population density. We first examine the case of a constant contact rate (motivated by AIDS) and here obtain some global stability results.
Greenhalgh, David, Das, Rupi
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