This work aims to develop a methodology for an integral analysis and a computational environment in order to perform the preliminary design of a complete aircraft. For this purpose an integrated multidisciplinary design optimization (MDO) has been used to minimize a composite multi-objective function. The use of a MDO techniques can improve the solution obtained compared to a classical sequential design, in that it is able to utilize all the interactions and influences that exist between the disciplines under investigation. The multi-objective problem will be solved by generating a set of Pareto optimal solutions and analyzing the consequent Pareto frontiers. A Weighed Global Criterion (WGC) was used in three different formulations. It has also been analyzed in detail the selected formulations and it has been formulated the concept of shape function. The algorithm was developed in Fortran environment and involves the use of a commercial optimization code and a commercial finite element code, that is able to perform the analysis required by several disciplines.
Analysis of Pareto-Frontier for Multidisciplinary Design Optimization of Aircraft / Mastroddi, Franco; Gemma, Stefania. - ELETTRONICO. - (2011), pp. 1418-1427. (Intervento presentato al convegno CEAS 2011 - The Third Internationa Conference of European Aerospace Societes tenutosi a Venice, Italy nel 24-28 Ottobre 2011).
Analysis of Pareto-Frontier for Multidisciplinary Design Optimization of Aircraft
MASTRODDI, Franco;GEMMA, STEFANIA
2011
Abstract
This work aims to develop a methodology for an integral analysis and a computational environment in order to perform the preliminary design of a complete aircraft. For this purpose an integrated multidisciplinary design optimization (MDO) has been used to minimize a composite multi-objective function. The use of a MDO techniques can improve the solution obtained compared to a classical sequential design, in that it is able to utilize all the interactions and influences that exist between the disciplines under investigation. The multi-objective problem will be solved by generating a set of Pareto optimal solutions and analyzing the consequent Pareto frontiers. A Weighed Global Criterion (WGC) was used in three different formulations. It has also been analyzed in detail the selected formulations and it has been formulated the concept of shape function. The algorithm was developed in Fortran environment and involves the use of a commercial optimization code and a commercial finite element code, that is able to perform the analysis required by several disciplines.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
