Relaxation Tribometry: A Generic Method to Identify the Nature of Contact Forces - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Tribology Letters Année : 2019

Relaxation Tribometry: A Generic Method to Identify the Nature of Contact Forces

Résumé

Recent years have witnessed the development of so-called relaxation tribometers, the free oscillation of which is altered by the presence of frictional stresses within the contact. So far, analysis of such oscillations has been restricted to the shape of their decaying envelope, to identify in particular solid or viscous friction components. Here, we present a more general expression of the forces possibly acting within the contact , and retain six possible, physically relevant terms. Two of them, which had never been proposed in the context of relaxation tribometry, only affect the oscillation frequency, not the amplitude of the signal. We demonstrate that each of those six terms has a unique signature in the time-evolution of the oscillation, which allows efficient identification of their respective weights in any experimental signal. We illustrate our methodology on a PDMS sphere/glass plate torsional contact.
Fichier principal
Vignette du fichier
triblet52.pdf (617.16 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-02112244 , version 1 (26-04-2019)

Identifiants

Citer

Alain Le Bot, Julien Scheibert, Artem A Vasko, Oleg Braun. Relaxation Tribometry: A Generic Method to Identify the Nature of Contact Forces. Tribology Letters, 2019, 67 (53), ⟨10.1007/s11249-019-1168-5⟩. ⟨hal-02112244⟩
60 Consultations
82 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More