The Design of Open Engineering Systems Lab

University at Buffalo - The State University of New York

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A Study of Convergence and Mapping in Preliminary Vehicle Design

Research Area: Research Publication Year: 2005
Type of Publication: Technical Report Keywords: multiobjective optimisation, performance space, design space
Authors: Ferguson, Scott; Gurnani, Ashwin; Donndelinger, Joseph; Lewis, Kemper
In this paper, we investigate the issue of convergence in multi-objective optimisation problems developed for vehicle analyses when using a Multi-Objective Genetic Algorithm (MOGA) to determine the set of Pareto optimal automobile configurations. Additionally, given a Pareto set for a multi-objective problem, the mapping between the performance and design space is studied to determine new automobile design configurations for a given set of performance specifications. The advantage of this study is that the automobile’s design information is obtained without having to repeat system analyses. The tools developed in this paper are applied both to a simple multi-objective optimisation problem to illustrate the methodology and to a preliminary vehicle design framework to develop a Technical Feasibility Model (TFM) for use in the early stages of automobile design.
Int. J. Vehicle Systems Modelling and Testing
Full text: IJVSMT.2005.pdf