Study of the traction curves in rolling/sliding dry contact including microgeometry effects

Abstract

O objetivo principal deste trabalho é fazer um estudo teórico, usando um modelo de contacto proposto por , que visa validar, ou não, testes realizados num tribómetro de disco duplo, no Institut Supérieur de Mecánique de Paris (SUPMECA), comparando, ambos os resultados, como a teoria linear de Kalker. Para tal, fez-se um estudo alongado sobre o contacto entre superfícies cilíndricas lisas e rugosas, carregadas com diferentes tipos de esforços, começando no mais simples, acabando no mais complexo. Muitas das avaliações feitas neste trabalho, tiveram por base modelos já existentes que serão corretamente citados à posteriori. No final irá, então, fazer-se a comparação de ambos os resultados para ver se se chega a um consenso quanto à validade das experiencias feitas.O objetivo principal deste trabalho é fazer um estudo teórico, usando um modelo de contacto proposto por , que visa validar, ou não, testes realizados num tribómetro de disco duplo, no Institut Supérieur de Mecánique de Paris (SUPMECA), comparando, ambos os resultados, como a teoria linear de Kalker. Para tal, fez-se um estudo alongado sobre o contacto entre superfícies cilíndricas lisas e rugosas, carregadas com diferentes tipos de esforços, começando no mais simples, acabando no mais complexo. Muitas das avaliações feitas neste trabalho, tiveram por base modelos já existentes que serão corretamente citados à posteriori. No final irá, então, fazer-se a comparação de ambos os resultados para ver se se chega a um consenso quanto à validade das experiencias feitas

The main objective of this work is to do a theoretical study, using a contact model proposed by, which aims to validate, or not, tests performed in a double disc tribometer, at the Institut Supérieur de Mecánique de Paris (SUPMECA), comparing both results , such as Kalker's linear theory. For this, an elongated study was made on the contact between smooth and rough cylindrical surfaces, loaded with different types of efforts, beginning at the simplest, finishing at the most complex. Many of the evaluations made in this work were based on existing models that will be correctly cited a posteriori.At the end, then, both results will be compared to see if there is a consensus about the validity of the experiences made.The main objective of this work is to do a theoretical study, using a contact model proposed by, which aims to validate, or not, tests performed in a double disc tribometer, at the Institut Supérieur de Mecánique de Paris (SUPMECA), comparing both results , such as Kalker's linear theory. For this, an elongated study was made on the contact between smooth and rough cylindrical surfaces, loaded with different types of efforts, beginning at the simplest, finishing at the most complex. Many of the evaluations made in this work were based on existing models that will be correctly cited a posteriori.At the end, then, both results will be compared to see if there is a consensus about the validity of the experiences made.The main objective of this work is to do a theoretical study, using a contact model proposed by, which aims to validate, or not, tests performed in a double disc tribometer, at the Institut Supérieur de Mecánique de Paris (SUPMECA), comparing both results , such as Kalker's linear theory. For this, an elongated study was made on the contact between smooth and rough cylindrical surfaces, loaded with different types of efforts, beginning at the simplest, finishing at the most complex. Many of the evaluations made in this work were based on existing models that will be correctly cited a posteriori.At the end, then, both results will be compared to see if there is a consensus about the validity of the experiences made.