Results 81 to 90 of about 41,222 (159)

Collaborative Optimization of Aerodynamics and Wind Turbine Blades

open access: yesApplied Sciences
This paper explores the application of multidisciplinary design optimization to the blades in horizontal-axis wind turbines. The aerodynamics and structural performance of blades are considered in the optimization framework. In the aerodynamic discipline,
Fushan He   +7 more
doaj   +1 more source

Computer-aided methods for analysis and synthesis of supersonic cruise aircraft structures [PDF]

open access: yes
Computer-aided methods are reviewed which are being developed by Langley Research Center in-house work and by related grants and contracts. Synthesis methods to size structural members to meet strength and stiffness (flutter) requirements are emphasized ...
Giles, G. L.
core   +1 more source

Numerical optimization design of advanced transonic wing configurations [PDF]

open access: yes
A computationally efficient and versatile technique for use in the design of advanced transonic wing configurations has been developed. A reliable and fast transonic wing flow-field analysis program, TWING, has been coupled with a modified quasi-Newton ...
Cosentino, G. B., Holst, T. L.
core   +1 more source

Transonic rotor tip design using numerical optimization [PDF]

open access: yes
The aerodynamic design procedure for a new blade tip suitable for operation at transonic speeds is illustrated. For the first time, 3 dimensional numerical optimization was applied to rotor tip design, using the recent derivative of the ROT22 code ...
Langhi, Ronald G., Tauber, Michael E.
core   +1 more source

Fitting aerodynamic forces in the Laplace domain: An application of a nonlinear nongradient technique to multilevel constrained optimization [PDF]

open access: yes
A technique which employs both linear and nonlinear methods in a multilevel optimization structure to best approximate generalized unsteady aerodynamic forces for arbitrary motion is described.
Adams, W. M., Jr., Tiffany, S. H.
core   +1 more source

A CNN-PINN-DRL driven method for shape optimization of airfoils

open access: yesEngineering Applications of Computational Fluid Mechanics
Shape optimization of airfoils is crucial for enhancing the aerodynamic performance of large blades. Nowadays, the integration of computational fluid dynamics and intelligent optimization algorithm has become the dominant approach for airfoil shape ...
Ying Yuan Liu   +3 more
doaj   +1 more source

The art of spacecraft design: A multidisciplinary challenge [PDF]

open access: yes
Actual design turn-around time has become shorter due to the use of optimization techniques which have been introduced into the design process. It seems that what, how and when to use these optimization techniques may be the key factor for future ...
Abdi, F.   +3 more
core   +1 more source

Jig Twist Optimization of Mach 0.745 Transonic Truss-Braced Wing Aircraft and High-Fidelity CFD Validation [PDF]

open access: yes
This paper presents a jig twist optimization study of Mach 0.745 Transonic Truss-Braced Wing (TTBW) aircraft using an in-house developed aero-structural analysis solver VSPAERO coupled to BEAM3D. A vortex-lattice model of the TTBW model is developed, and
Jason Fugate, Nhan Nguyen, Xiong, Juntao
core   +1 more source

Application of direct inverse analogy method (DIVA) and viscous design optimization techniques [PDF]

open access: yes
A direct-inverse approach to the transonic design problem was presented in its initial state at the First International Conference on Inverse Design Concepts and Optimization in Engineering Sciences (ICIDES-1).
Forbrich, D., Greff, E., Schwarten, H.
core   +1 more source

Optimization Design of Blades Based on Multi-Objective Particle Swarm Optimization Algorithm

open access: yesJournal of Marine Science and Engineering
Among renewable energy sources derived from the ocean, wind power has developed rapidly. This article proposes an optimization algorithm framework that integrates two objectives: aerodynamic shape optimization and structural optimization.
Zihao Li   +3 more
doaj   +1 more source

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