(American Institute of Aeronautics and Astronautics (AIAA), 2016) N/A; Department of Mechanical Engineering; Department of Mechanical Engineering; Department of Mechanical Engineering; Serhat, Gökhan; Faria, Tiago Goncalves; Başdoğan, İpek; PhD Student; Researcher; Faculty Member; Graduate School of Sciences and Engineering; College of Engineering; College of Engineering; N/A; N/A; 179940
In this paper, a preliminary design methodology for optimization of stiffened, fiber-reinforced composite fuselages for combined mechanical and vibro-acoustic requirements is presented. Laminate stiffness distributions are represented using the method called lamination parameters which is known to provide a convex solution space. Single-objective and multi-objective optimization studies are carried out in order to find optimal stiffness distributions. Performance metrics for acoustical behavior are chosen as maximum fundamental frequency and minimum equivalent radiated power. The mechanical performance metric is chosen as the maximum stiffness. The results show that the presented methodology works effectively and it can be used to improve load-carrying and acoustical performances simultaneously.
