Results 161 to 170 of about 15,080 (315)

Report on trajectory analysis and optimization of the nominal flight trajectory and sensitivities

, 2011
This deliverable presents work done on the optimization of the nominal flight of the SpaceLiner (a flight from Sydney to Western Europe). Optimality is measured with respect to the total take-off mass of the SpaceLiner.
van Foreest, Arnold
core  

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Aerodynamic Optimization of Relay Nozzle Using a Chebyshev KAN Surrogate Model Integration and an Improved Multi-Objective Red-Billed Blue Magpie Optimizer. [PDF]

Biomimetics (Basel)
Shen M, Zhang Z, Qin G, Zhou D, Du L, Yu L.   +5 more
europepmc   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Design space reduction in optimization using generative topographic mapping

, 2009
Dimension reduction in design optimization is an extensively researched area. The need arises in design problems dealing with very high dimensions, which increase the computational burden of the design process because the sample space required for the ...
Keane, Andy, Viswanath, Asha, Forrester, Alexander   +2 more
core  

Adaptive Parameterization using Free-Form Deformation for Aerodynamic Shape Optimization

, 2006
Parameterization techniques commonly used in aerodynamic shape optimization are essentially general and multi-purpose approaches. As a consequence, they cannot be well suited to a particular shape optimization problem.
Duvigneau, Régis
core   +1 more source

CFD-based aerodynamic optimization of the fairing for a high-speed elevator. [PDF]

Sci Rep
Shen X, Wang A, Liu W, Wang R.
europepmc   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Multi-Disciplinary Analysis and Optimization of Hypersonic Transport Aircrafts

, 2008
The development and first applications to a Mach 6 hypersonic transport configuration of a new multidisciplinary optimization (MDO) process is presented.
Duveau, P., Carrier, G., Thepot, R., Dittrich, R., Salah El Din, I., Longo, J.M.A.   +5 more
core  

Effects of Wing-Tail Coupling on Aerodynamic Performance of Flapping-Wing Aircraft. [PDF]

Biomimetics (Basel)
Wang C, Zhang L, Liu H, Yu K, Wu J, Zhu M.   +5 more
europepmc   +1 more source