1988 · 20 citations · 1 references
EngineeringAerospace EngineeringMechanical EngineeringAerospace StructuresStructural AnalysisStructural EngineeringBeam AnalysisBending Of BeamsLightweight Structural DesignLoad AnalysisStructural OptimizationWeight EstimationDragDrag Coefficient EstimationProfile DragStrength OptimizationStructural Weight EstimationStructural Weight OptimizationWeight OptimizationWing Twist Distribution
A computer program has been developed that optimizes spanloads with structural weight taken into account. The program optimizes the twist distribution to minimize a combination of wing drag and weight. The wing drag is based on a Trefftz plane induced drag analysis and on an empirical profile drag estimation. The wing weight is based on a simple beam model where weight is based on bending strength design for a critical condition spanload. The program can be used to analyze multiple non-planer lifting surface configurations with realistic constraints such as trim and material limitations.
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W L Gray, K M Schenk · University of North Texas Digital Library (University of North Texas) · 1953 · 26 citations · Full text
Engineering, Aerospace Engineering, Mechanical Engineering +17