Results 31 to 40 of about 1,589,316 (316)

Stick/slip phenomena in dynamics: choice of contact model. Numerical predictions & experiments [PDF]

open access: yes, 2007
This paper presents a method for choosing the most appropriate contact model from several models, by comparing their efficiency for predicting hysteretic behaviour in different applications.
Michon, Guilhem   +4 more
core   +1 more source

Contact analysis and mathematical modeling of traveling wave ultrasonic motors [PDF]

open access: yes, 2004
An analysis of the contact layer and a mathematical modeling of traveling wave ultrasonic motors (TWUM) are presented for the guidance of the design of contact layer and the analyses of the influence of the compressive force and contact layer on motor ...
Zhu, Meiling
core   +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

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

Evaluation of the real contact area in three-body dry friction by micro-thermal analysis [PDF]

open access: yes, 2009
Many tribological properties and wear mechanisms occurring on the micro-and nanoscale are strongly controlled by the so-called real contact area (Ar) which is a small fraction of the nominal or apparent contact area (Aa). The determination of Ar is often
Djilali, Toufik   +5 more
core   +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

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

Superhydrophobic surfaces: a model approach to predict contact angle and surface energy of soil particles [PDF]

open access: yes, 2009
Wettability of soil affects a wide variety of processes including infiltration, preferential flow and surface runoff. The problem of determining contact angles and surface energy of powders, such as soil particles, remains unsolved.
Bachmann, Jörg   +3 more
core   +1 more source

Strain-rate-dependent model for the elastoplastic dynamic contact of sphere and plate

open access: yesMaterials Research Express, 2020
A force-indentation contact model is presented for the dynamic contact loading of elastoplastic particle and plate to incorporate the material’s strain-rate-dependent plasticity, built theoretically from the well-known Hertz contact law and Hill’s ...
Tengfei Jin   +5 more
doaj   +1 more source

Contact and Collaboration Context Model

open access: yes2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI), 2018
Working collaboratively is no longer an issue but a reality, what matters today is how to implement collaboration so that it is as successful as possible. It is therefore necessary to consider the criteria to be taken into account to promote its effectiveness.
Siying Li   +2 more
openaire   +2 more sources

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