Year: 2016
Type: conference-paper
Abstract: Future transportation aircraft requirements focused on energy efficiency and environmental impact are leading to design concepts with very high-aspect-ratio wings.These slender wings aim to maximize efficiency by reducing drag and lowering structural weight, but can lead to larger structural deformations under aerodynamic loading and tighter coupling between the aeroelastic response and flight dynamics of the vehicle.Current engineering practice is to use wind tunnel testing to predict the stability and performance characteristics of the vehicle.However, the flutter boundary and mode maybe very different for a flexible vehicle in free flight compared to the cantilevered wing model alone.The coupled aeroelastic and flight dynamic response of an aircraft concept with a flexible high-aspect-ratio wing is investigated to better understand the nonlinear aeroelastic implications of these future design trends.This paper reports the impact of the aeroelastic and rigid body interaction on the free flight flutter boundary and vehicle response.
Source: Dynamics Specialists Conference
DOI: 10.2514/6.2016-2046
Institution: University of Michigan
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2320166232