Results 41 to 50 of about 5,508,394 (290)

A Contact Model for Piezoelectric Beams [PDF]

, 2016
We consider a mathematical model which describes the equilibrium of an electro-elastic beam in contact with an electrically conductive foundation. The model is constructed by coupling the beam equation with the one dimensional piezoelectricity system obtained in [13].
Ángel Rodríguez-Arós, M. Teresa Cao-Rial, Mircea Sofonea   +2 more
openaire   +2 more sources

A contact model for rough crushable sand

Soils and Foundations, 2021
Sand roughness is now accessible to measurement. Incorporating this parameter into sand models using the discrete element method (DEM) is known to improve bulk small strain response.
Ningning Zhang, Matteo O. Ciantia, Marcos Arroyo, Antonio Gens   +3 more
doaj   +1 more source

A comparison of the predictions of a finite element model and multiscale model for a rough MEMS electrical contact

, 2013
Rough surface contact is difficult to model effectively due to multiple scales of detail that need to be considered. This work presents the results of a multiscale rough surface contact model in comparison to a finite element based deterministic model ...
Jackson, Robert L., Leray, Dimitri, Liu, Hong   +2 more
core   +1 more source

Dynamic Friction-Slip Model Based on Contact Theory

Machines, 2022
In ultra-precision positioning equipment, the positioning accuracy is affected by the friction characteristics, especially the pre-slip stage. At present, the research on friction mainly includes contact theory and the dynamic friction process.
Hui Wang, Jiwen Cui, Jianwei Wu, Jiubin Tan   +3 more
doaj   +1 more source

Adhesive contact of model randomly rough rubber surfaces

, 2019
We study experimentally and theoretically the equilibrium adhesive contact between a smooth glass lens and a rough rubber surface textured with spherical microasperities with controlled height and spatial distributions.
Acito, Vito, Chateauminois, Antoine, Ciavarella, Michele, Prevost, Alexis M   +3 more
core   +3 more sources

A 3D Contact Model with Shoulder-to-Shoulder Paraboloidal Asperities for Rough Surfaces

Mathematics
To address the limitations of existing two-dimensional asperity shoulder-to-shoulder contact models and to investigate the normal and tangential contact mechanisms of rough surfaces, this study proposes a three-dimensional elastic contact model based on ...
Linbo Zhu, Junbing Liu, Jian Chen, Yongliang Wu, Xuan Fu, Jun Hong   +5 more
doaj   +1 more source

Contact mechanics model of lung lobar sliding

Applications in Engineering Science, 2022
Lobar sliding is an often-overlooked aspect of lung mechanics that presents a potential source of variance in the lung mechanics and physiology of different subjects.
Adam E. Galloy, Ryan E. Amelon, Joseph M. Reinhardt, M.L. Raghavan   +3 more
doaj   +1 more source

Contact-Implicit Trajectory Optimization Based on a Variable Smooth Contact Model and Successive Convexification

, 2019
In this paper, we propose a contact-implicit trajectory optimization (CITO) method based on a variable smooth contact model (VSCM) and successive convexification (SCvx).
Long, Philip, Onol, Aykut Ozgun, Padir, Taskin   +2 more
core   +1 more source

Contact Discontinuities in Models of Contact Binaries Undergoing Thermal Relaxation Oscillations [PDF]

, 1999
In this paper we pursue the suggestion by Shu, Lubow & Anderson (1979) and Wang (1995) that contact discontinuity (DSC) may exist in the secondary in the expansion TRO (thermal relaxation oscillation) state.
Biermann P., Eggen O. J., Hazlehurst J., Hilditch R. W., Jian-Min Wang, Kahler H., Linnell A. P., Osaki Y., Papaloizou J., Robertson J. A., Robertson J. A., Shu F. H., Sinjab I. M., Smith D. H., Smith R. C., Vilhu O., Wang J.-M.   +16 more
core   +2 more sources

Sirolimus for Extracranial Arteriovenous Malformations: A Scoping Review of the Evidence in Syndromic and Non‐Syndromic Cases

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Arteriovenous malformations (AVMs) are rare, high‐flow, vascular anomalies that can occur either sporadically or as part of a genetic syndrome. AVMs can progress with serious morbidity and even mortality if left unchecked. Sirolimus is an mTOR inhibitor that is effective in low‐flow vascular malformations; however, its role in AVMs is unclear.
Will Swansson, Ingrid Winship, Gary Hammerschlag, Laura Scardamaglia   +3 more
wiley   +1 more source