Modelling the wear processes of the automotive brake pad and disc
Journal Title: INCAS BULLETIN - Year 2018, Vol 10, Issue 4
Abstract
The automotive disc braking system is based on the friction between a disc and two pads and this friction determines their wear. The theoretical study proposed in this paper aims to model this wear process. It is based on a simplified geometrical model (approximation of the curvilinear trapezium with a rectangle of the same area) and considering the brake pad as a viscoelastic material, while the disc is elastic. With the help of this model we can determine the relative displacements of the pad and of the disc during the braking process. Also, when the process is stabilized, the pressure distribution can be determined. In the paper, both the relative displacements and the pressure distribution are exemplified for the inner edge, the middle and the outer edge of the brake pad.
Authors and Affiliations
Nicolae Alexandru STOICA, Alina-Maria PETRESCU, Andrei TUDOR
Using genetic algorithms to optimize airfoils in incompressible regime
Aerodynamic optimization is a very actual problem in aircraft design and airfoils are basic two-dimensional shape forming cross sections of wings. Traditionally, the airfoil geometry if defined by a very large number of...
Overview regarding the certification of a new military jet aircraft for school and training
The requirements for designing a new Romanian school and training military jet, IAR 99 NG, are in line with the EMAR - European Military Airworthiness Requirement. The Approval Regulation for the new school and training...
Methods of flow visualization
Flow visualization is an important topic in scientific visualization and has been the subject of active research for many years. Typically, data originates from numerical simulations, such as those of computational fluid...
Mechanical performances of lead-free solder joint connections with applications in the aerospace domain
The paper presents some theoretical and experimental aspects regarding the tribological performances of lead-free solder joint connections, with application in the aerospace domain. In order to highlight the mechanical a...
[b]Regarding the evaluation of the solid rocket propellant response function to pressure coupling[/b]
High frequency combustion instabilities imply a major risk for the solid rocket motor stable working and they are directly linked to the propellant response to chamber pressure coupling. This article discusses a laborato...