Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Wear Analysis of a Plunger of Diesel Injection Pump Combining Experimental Test and Finite Element Simulation
Submission Author:
Joao Guilherme Farias , PR
Co-Authors:
Marco Antonio Luersen, Carlos Henrique Silva, Joao Guilherme Farias
Presenter: Joao Guilherme Farias
doi://10.26678/ABCM.COBEM2017.COB17-0412
Abstract
Performing experimental tests is the most common way to study wear of mechanical components and evaluate the parameters that affect it. In addition, studies using numerical simulations with the finite element method in combination with mathematical models for wear prediction have helped to understand some physical principles, as well to estimate the effects of this phenomenon. Within this context, this work aims to study the tribological behavior of the plunger-pump body of a diesel injection system through experimental tests and numerical simulations. A device is developed and built for carrying out experimental sliding tests on a tribometer. Dry tests are performed varying the normal force and the sliding distance. The experimental results are integrated in a numerical model through a subroutine that applies the measured wear along the simulation. The numerical finite element model is developed in order to represent the experimental tests and reproduce the wear in the plunger surface. The above mentioned subroutine applies the wear in a good agreement with experimental tests. With the results of the numerical model, it is possible to evaluate the components behavior, taking into account the wear evolution in the plunger, besides estimating the wear coefficient for the studied contact pair.
Keywords
diesel injection pump, tribological experimental test, Numerical simulation, Finite Element Method, Wear, plunger
