The goal of this work is the development of a methodology and a computational environment to enable a Pareto frontier analysis for the preliminary design optimization of a wing / horizontal tail / fuselage aircraft configuration. Integrated Multidisciplinary Design Optimization (MDO) is used to minimize a composite multi-objective function. A Pareto frontier in the 3-D objective space of weight (minimum), aerodynamic efficiency (maximum), and mission range (maximum) is constructed for the actual configuration of a regional aircraft. MDO techniques improve upon the obtained solution compared to classical sequential design, as they account for all interactions and influences between the disciplines under investigation. The multi-objective problem is solved by generating a set of Pareto optimal solutions that constitute a Pareto frontier. Three different formulations of the Weighed Global Criterion (WGC) method are used, and these functional formulations are analyzed and the concept of a Local Approximation Function is developed to build the Pareto frontier. The developed algorithm uses a commercial optimization code and a commercial finite element code to perform the required analyses. Finally, a criterion for selecting an ultimate design solution for the aircraft on the Pareto frontier is addressed.

Analysis of Pareto frontiers for multidisciplinary design optimization of aircraft / Mastroddi, Franco; Gemma, Stefania. - In: AEROSPACE SCIENCE AND TECHNOLOGY. - ISSN 1270-9638. - STAMPA. - 28:1(2013), pp. 40-55. [10.1016/j.ast.2012.10.003]

Analysis of Pareto frontiers for multidisciplinary design optimization of aircraft

MASTRODDI, Franco;GEMMA, STEFANIA
2013

Abstract

The goal of this work is the development of a methodology and a computational environment to enable a Pareto frontier analysis for the preliminary design optimization of a wing / horizontal tail / fuselage aircraft configuration. Integrated Multidisciplinary Design Optimization (MDO) is used to minimize a composite multi-objective function. A Pareto frontier in the 3-D objective space of weight (minimum), aerodynamic efficiency (maximum), and mission range (maximum) is constructed for the actual configuration of a regional aircraft. MDO techniques improve upon the obtained solution compared to classical sequential design, as they account for all interactions and influences between the disciplines under investigation. The multi-objective problem is solved by generating a set of Pareto optimal solutions that constitute a Pareto frontier. Three different formulations of the Weighed Global Criterion (WGC) method are used, and these functional formulations are analyzed and the concept of a Local Approximation Function is developed to build the Pareto frontier. The developed algorithm uses a commercial optimization code and a commercial finite element code to perform the required analyses. Finally, a criterion for selecting an ultimate design solution for the aircraft on the Pareto frontier is addressed.
2013
aeroelasticity; aerospace structures; aircraft preliminary design; mdo; muldidisciplinary design optimizatio; multi-objective optimization; pareto analysis
01 Pubblicazione su rivista::01a Articolo in rivista
Analysis of Pareto frontiers for multidisciplinary design optimization of aircraft / Mastroddi, Franco; Gemma, Stefania. - In: AEROSPACE SCIENCE AND TECHNOLOGY. - ISSN 1270-9638. - STAMPA. - 28:1(2013), pp. 40-55. [10.1016/j.ast.2012.10.003]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/487324
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