System Design of a Vehicle Based on the Matrix Approach Using Functional Analysis of the Maintenance

Dušan Mežnar

doi:10.3390/pr9050897

Abstract

The use of extended standard functional analysis of maintenance in the design phase of vehicle structure analysis is presented for the first time, where a matrix of the degree of importance of modules or parts, a matrix size between costs and benefits (costs–benefits), and a logistic support matrix (support index and repair time) are used. The use of these methods allows a designer to be able to determine, in the very early phase of the construction process, the important factors (structure, component price, reliability, repair costs, response time, logistic supportability) that have a major impact on vehicle maintenance. Extended functional analysis also allows us to define critical structures in the project specification of vehicles. A crucial issue in functional analysis is the very extensive implementation of research, drawing conclusions and findings with the basic goal of determining a set of indicators for the verification of assumptions and hypotheses.

Highlights

The main instrument of extended functional analysis (XFA) [1] consists of simple arrays containing a set of main elements, modules, and vehicle assemblies, as well as independent functions
Each cell in the matrix represents a cross-section between the vehicle structure element and the corresponding independent vehicle function
For XFA, elements, modules, assemblies, and analyzed functions or processes need to be processed according to the hierarchy [2,3]; a list of main components or modules is located on the left side of table, and in the upper part of the matrix is a set of independent vehicle functions

Summary

Introduction

The main instrument of extended functional analysis (XFA) [1] consists of simple arrays containing a set of main elements, modules, and vehicle assemblies, as well as independent functions. For XFA, elements, modules, assemblies, and analyzed functions or processes need to be processed according to the hierarchy [2,3]; a list of main components or modules is located on the left side of table, and in the upper part of the matrix is a set of independent vehicle functions. These are determined using the aggregate structure of the vehicule. “front to end” analysis is performed [3,4]

Objectives

Methods

Results