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Acoustic Metamaterials in Aeronautics [PDF]

open access: yesApplied Sciences, 2018
Metamaterials, man-made composites that are scaled smaller than the wavelength, have demonstrated a huge potential for application in acoustics, allowing the production of sub-wavelength acoustic absorbers, acoustic invisibility, perfect acoustic mirrors
Giorgio Palma   +4 more
doaj   +5 more sources

Elementary Aeronautics [PDF]

open access: greenScience, 1912
n ...
William Humphreys
openalex   +3 more sources

Aeronautical Engines [PDF]

open access: greenProceedings of the Institution of Automobile Engineers, 1912
n ...
Anne Clark
openalex   +3 more sources

Study on the Aerodynamic Performance of Novel Bypass Shock-Induced Thrust Vector Nozzle [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
This article studies the aerodynamic performance of a novel bypass shock-induced thrust vector nozzle. An arc-shaped bypass is innovatively designed to optimize nozzle performance and equips a variable shrinkage part.
K. Wu   +6 more
doaj   +1 more source

Comparative Analysis of the Aeronautical Certification Process Against Nonionizing Radiation and the Management Proposal for Ionizing Radiation [PDF]

open access: yesJournal of Aerospace Technology and Management, 2022
Today, the certification process for onboard electro-electronic systems against nonionizing radiation can be considered mature and independent, having its own set of requirements.
Marcelo Tadeu Motta Ferreira   +1 more
doaj   +1 more source

Design and Optimization of a Large Turboprop Aircraft

open access: yesAerospace, 2021
This paper proposes a feasibility study concerning a large turboprop aircraft to be used as a lower environmental impact solution to current regional jets operated on short/medium hauls. An overview of this market scenario highlights that this segment is
Fabrizio Nicolosi   +3 more
doaj   +1 more source

Units in Aeronautics [PDF]

open access: yesNature, 1922
WRITE the usual formula in aeronautics, R/S=23.7(V/100)2, lb/ft2, in the Hospitalier notation, and the practical airman recognises that the resistance R, lb, over a surface S, ft2, is at the rate 23.7 lb/ft2 at a normal velocity of 100 f/s; and so on for any other velocity V, on the law of the square.
  +8 more sources

Additive Manufacturing of Aluminum Alloys for Aeronautic Applications: Advantages and Problems

open access: yesMetals, 2023
In aeronautics, additive manufacturing (AM) leads to specific benefits, mainly connected to topological optimization for weight reduction, the decrease in “buy-to-fly” ratio, and the operations of maintenance, repair, and overhaul. Al alloys processed by
Roberto Montanari   +3 more
doaj   +1 more source

The establishment of domestic civil aviation: legal aspects

open access: yesНаучный вестник МГТУ ГА, 2023
2023 is the centenary anniversary year for the domestic civil aviation. At every stage of the branch development, the legal support of its activity was supplemented and transformed which was caused with the specific historical realities.
B. P. Eliseev
doaj   +1 more source

Aeroacustic and Vibroacoustic Advancement in Aerospace and Automotive Systems

open access: yesApplied Sciences, 2020
This Special Issue highlights the latest enhancements in the abatement of noise and vibrations of aerospace and automotive systems. The reduction of acoustic emissions and the improvement of cabin interior comfort are on the path of all major ...
Roberto Citarella   +2 more
doaj   +1 more source

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