Multi-Disciplinary Design Approach and Structural Sizingon Composite Wing

摘要

This paper discusses an aircraft design approach which enables to achievernrequirements of aerodynamic property and structural efficiency. Focusing on arncomposite wing design problem, a multi-disciplinary optimization (MDO)rnmaximizing aerodynamic properties and structural efficiency is executed to obtainrnnon-dominated solutions. This MDO method complies of low-fidelity computationalrnfluid dynamics (CFD) and structural analysis. Then, structural sizing is performed forrntypical result of non-dominated solutions to obtain optimized structural designrnminimizing weight such as laminate thickness, stacking sequence, stringer spacing,rnstringer height, and so on. Visualizing the distribution of extracted dominant failurernmode for each structural element with Self Organizing Map (SOM), the correlationrnbetween aerodynamic shape and sizing result is discussed.