Abstract

We study the time dependency of the interfacial separation and of the area of real contact between a soft elastic cylinder and a rigid solid with a randomly rough surface, squeezed with normal approach in a fluid. This problem is relevant for biological, as well as for bio-medical, seals and tires applications. An ad-hoc numerical scheme is developed to solve the transient mixed-EHD homogenized lubrication problem. We show that, for the soft contact case, the transition from the EHD to the boundary regime can be much more efficiently studied within a simplified (Grubin-like) problem formulation then with the full numerical scheme. This is not only of great conceptional importance, but also of practical importance as the latter calculation is much simpler and faster than the full scheme calculation.

Autore Pugliese

• Scaraggi Michele

Tutti gli autori

• M. Scaraggi , B.N.J. Persson

Titolo volume/Rivista

TRIBOLOGY LETTERS

Anno di pubblicazione

2012

ISSN

1023-8883

ISBN

Non Disponibile

Numero di citazioni Wos

13

Ultimo Aggiornamento Citazioni

25/04/2018

Numero di citazioni Scopus

13

Ultimo Aggiornamento Citazioni

26/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile