Розробка моделі узагальненого діагностичного показника технічного стану ходової частини автомобіля з використанням математичних методів теорії планування експерименту

Dmytro  MIRONOV; Oleg  LYASHUK; Ivan  НEVKO; Andriy  HUPKA; Lubomyr  SLOBODIAN; Bohdan  HEVKO; Roman  KHOROSHUN

doi:10.36910/automash.v2i21.1218

Dmytro MIRONOV PhD in Engeneering, senior teacherof Automobiles Department, Ternopil Ivan Puluj National Technical University https://orcid.org/0000-0002-5717-4322
Oleg LYASHUK Doctor of Technical Sciences, Professor of Automobiles Department, Ternopil Ivan Puluj National Technical University https://orcid.org/0000-0003-4881-8568
Ivan НEVKO Doctor of Technical Sciences, Professor of Automobiles Department, Ternopil Ivan Puluj National Technical University https://orcid.org/0000-0001-5170-0857
Andriy HUPKA PhD in Engeneering, associate professor of Automobiles Department, Ternopil Ivan Puluj National Technical University https://orcid.org/0000-0002-7565-5664
Lubomyr SLOBODIAN PhD in Engeneering, associate professor of Automobiles Department, Ternopil Ivan Puluj National Technical University https://orcid.org/0000-0002-9191-6801
Bohdan HEVKO PhD in Economics, assistant of Automobiles Department, Ternopil Ivan Puluj National Technical University https://orcid.org/0000-0003-1639-2136
Roman KHOROSHUN assistant of Automobiles Department, Ternopil Ivan Puluj National Technical University https://orcid.org/0000-0002-1862-7640

DOI: https://doi.org/10.36910/automash.v2i21.1218

Abstract

The purpose of the work is to develop a regression model of a generalized diagnostic indicator of the technical condition of the car chassis to speed up the process of making a diagnosis about the technical condition of its components.

To solve the tasks, the methods of planning the experiment were used in the optimization of multifactorial processes, methods of mathematical modeling and methods of statistical analysis.

As a result of conducting a full factorial experiment, the regression equation of the generalized diagnostic indicator of the technical condition of the car chassis was obtained. According to the regression equation, the nature of the influence of diagnostic parameters of the running gear on its general technical condition is determined. Based on the analysis of the values of the coefficients of the regression equation, a list of factors that have the greatest influence on the technical condition of the car chassis was obtained. A polynomial mathematical model of the generalized diagnostic indicator of the technical condition of the car chassis was obtained, which can be used in the tasks of forecasting the technical condition.

The theoretical approach to the assessment of the technical condition of car components has been improved by using mathematical models of generalized diagnostic indicators of the technical condition of the main units of the car using methods of the theory of planning experiments.

Polynomial models of the generalized diagnostic indicator of the technical condition of car components can be used to create new and improve existing automated systems for monitoring and forecasting the technical condition of car components. This will allow optimizing and speeding up the process of processing information received during repairs and technical inspections of cars, reduce the time for diagnosis, and also increase the accuracy of its diagnosis. In addition, this will allow reducing the material and financial costs for carrying out technical inspections and repair works of car units.

Keywords: vehicle chassis, mathematical model, full-factor experiment, repair, diagnostics

Development of a model of a generalized diagnostic indicator of the technical condition of the vehicle chassis using mathematical methods of the theory of experiment planning

Abstract