Concept
Géométrie de contact
Publications associées (37)
Subharmonic parametric instability in nearly brimful circular cylinders: a weakly nonlinear analysis
François Gallaire, Alessandro Bongarzone, Francesco Viola
In labscale Faraday experiments, meniscus waves respond harmonically to small-amplitude forcing without threshold, hence potentially cloaking the instability onset of parametric waves. Their suppression can be achieved by imposing a contact line pinned at ...
CAMBRIDGE UNIV PRESS2022Global Frobenius liftability I
We formulate a conjecture characterizing smooth projective varieties in positive characteristic whose Frobenius morphism can be lifted modulo p(2)-we expect that such varieties, after a finite stale cover, admit a toric fibration over an ordinary abelian v ...
EUROPEAN MATHEMATICAL SOC-EMS2021Surface textures suppress viscoelastic braking on soft substrates
John Martin Kolinski, Martin Louis Francis Coux
A gravity-driven droplet will rapidly flow down an inclined substrate, resisted only by stresses inside the liquid. If the substrate is compliant, with an elastic modulus G < 100 kPa, the droplet will markedly slow as a consequence of viscoelastic braking. ...
2020Adhesive wear and interaction of tangentially loaded micro-contacts
Jean-François Molinari, Son-Jonathan Pham-Ba, Tobias Brink
Current engineering wear models are often based on empirical parameters rather than built upon physical considerations. Here, we look for a physical description of adhesive wear at the microscale, at which the interaction between two surfaces comes down to ...
2020INTERNODES method for contact mechanics
Adaptation of the INTERNODES method to contact mechanics. ...
2019A Dynamical System Approach to Motion and Force Generation in Contact Tasks
Aude Billard, Mahdi Khoramshahi, Walid Amanhoud
Many tasks require the robot to enter in contact with surfaces, be it to take support, to polish or to grasp an object. It is crucial that the robot controls forces both upon making contact and while in contact. While many solutions exist to control for co ...
Robotics: Science and Systems (RSS)2019A Dynamical System Based Approach for Controlling Robotic Manipulators During Non-contact/Contact Transitions
Aude Billard, Seyed Sina Mirrazavi Salehian
Many daily life tasks require precise control when making contact with surfaces. Ensuring a smooth transition from free motion to contact is crucial as incurring a large impact force may lead to unstable contact with the robot bouncing on the surface, i.e. ...
2018Stable Transitions from Free-space to Contact: A Dynamical System Based Approach
Aude Billard, Seyed Sina Mirrazavi Salehian
In this work, we propose a dynamical system based strategy for establishing a stable contact with convex shaped surfaces during non-contact/contact scenarios. A contact is called stable if the impact occurs only once and the robot remains in contact with t ...
2018