eCommons

 

Analysis of lubricated normal contact of a rigid sphere on a viscoelastic halfspace

Other Titles

Abstract

Visco-elasto-hydrodynamic lubrication (VEHL) is a problem that is presentin various industries. Research in this domain exists primarily for elastohydrodynamic lubrication (EHL) problems and not much work is available that focusses on VEHL problems. In the present work this has been addressed. The VEHL problem studied here is that of a relaxation test which involves a rigid sphere indenting a lubricated incompressible viscoelastic half space. This phenomenon is governed by the Reynold’s equation and the Green’s function of the material. The Green’s function for such a problem is not readily available for incompressible viscoelastic materials. Such a function is first derived using the relationship between the behavior of incompressible elastic and viscoelastic materials. Following this a numerical approach has been used to handle the non-linearity in the Reynold’s equation. The results of the model developed in this work are then validated using simulation and experimental data. Finally, the model is used to study the behavior of Polymethyl Methacrylate which exhbits viscoelastic behavior.

Journal / Series

Volume & Issue

Description

54 pages

Sponsorship

Date Issued

2023-08

Publisher

Keywords

Visco-Elasto-Hydrodynamic Lubrication

Location

Effective Date

Expiration Date

Sector

Employer

Union

Union Local

NAICS

Number of Workers

Committee Chair

Hui, Chung-Yuen

Committee Co-Chair

Committee Member

Bouklas, Nikolaos

Degree Discipline

Mechanical Engineering

Degree Name

M.S., Mechanical Engineering

Degree Level

Master of Science

Related Version

Related DOI

Related To

Related Part

Based on Related Item

Has Other Format(s)

Part of Related Item

Related To

Related Publication(s)

Link(s) to Related Publication(s)

References

Link(s) to Reference(s)

Previously Published As

Government Document

ISBN

ISMN

ISSN

Other Identifiers

Rights

Rights URI

Types

dissertation or thesis

Accessibility Feature

Accessibility Hazard

Accessibility Summary

Link(s) to Catalog Record