Advanced Aerostructural Optimization Techniques for Aircraft Design

A Comparison of Metallic and Composite Aircraft Wings Using Aerostructural Design Optimization

In this paper we examine the design of metallic and composite aircraft wings in order to assess how the use of composites modifies the trade-off between structural weight and drag. In order to perform this assessment, we use a gradient-based aerostructural design optimization framework that combines a high-fidelity finite-element structural model that includes panel-level design variables with ...

Modern Aircraft Design Techniques

High-Fidelity Aerostructural Design Optimization of a Supersonic Business Jet

This paper focuses on the demonstration of an integrated aerostructural method for the design of aerospace vehicles. Both aerodynamics and structures are represented using high-fidelity models such as the Euler equations for the aerodynamics and a detailed finite element model for the primary structure. The aerodynamic outer-mold line and a structure of fixed topology are parameterized using a ...

Aircraft design optimization

In this paper we describe briefly a set of procedures for the optimal design of full mission aerospace systems. This involves multiphysics simulations at various fidelity levels, surrogates, distributed computing and multiobjective optimization. Low-fidelity analysis is used to populate a database of inputs and outputs of the system simulation and Neural Networks are then designed to generate i...

Aerostructural Optimization of Nonplanar Lifting Surfaces

Nonplanar lifting surfaces can lower the induced drag relative to planar surfaces by redistributing vorticity.Other sources of drag, such as viscous drag, as well as nonaerodynamic considerations, such as structural weight, also play an important role in assessing the overall efficiency of such lifting surfaces. In this paperwe solve a series of problems tofindoptimal nonplanar lifting surfaces...