NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Optimal Topology of Aircraft Rib and Spar Structures under Aeroelastic LoadsSeveral topology optimization problems are conducted within the ribs and spars of a wing box. It is desired to locate the best position of lightening holes, truss/cross-bracing, etc. A variety of aeroelastic metrics are isolated for each of these problems: elastic wing compliance under trim loads and taxi loads, stress distribution, and crushing loads. Aileron effectiveness under a constant roll rate is considered, as are dynamic metrics: natural vibration frequency and flutter. This approach helps uncover the relationship between topology and aeroelasticity in subsonic transport wings, and can therefore aid in understanding the complex aircraft design process which must eventually consider all these metrics and load cases simultaneously.
Document ID
20140007307
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Stanford, Bret K.
(NASA Langley Research Center Hampton, VA, United States)
Dunning, Peter D.
(National Inst. of Aerospace Hampton, VA, United States)
Date Acquired
June 11, 2014
Publication Date
January 13, 2014
Subject Category
Aerodynamics
Report/Patent Number
NF1676L-16611
AIAA Paper 2014-0633
Meeting Information
Meeting: AIAA Multidisciplinary Design Optimization Specialist Conference
Location: National Harbor,MD
Country: United States
Start Date: January 13, 2014
End Date: January 17, 2014
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
WBS: WBS 432938.11.01.07.43.40.08
Distribution Limits
Public
Copyright
Public Use Permitted.
No Preview Available