Environmental Impact Assessment, on the Operation of Conventional and More Electric Large Commercial Aircraft [PDF]
Global aviation is growing exponentially and there is a great emphasis on trajectory optimization to reduce the overall environmental impact caused by aircraft. Many optimization techniques exist and are being studied for this purpose.
Lawson, Craig P.+2 more
core +1 more source
Re‐Entrant Super‐Repellent Metallic Structures for Robust Anti‐Icing
Breakthrough re‐entrant super‐repellent structures engineered on metals demonstrate unprecedented anti‐icing performances: >600 min icing delay, 1.6 kPa ultralow ice adhesion strength, and 100‐cycle deicing durability. Thermodynamic analysis elucidates novel anti‐icing mechanisms and underlying design principles for exceptional ice‐resistance under ...
Daizhou Li+8 more
wiley +1 more source
Aircraft Engine Crankshaft Optimisation
Shrnutí Tento článek popisuje část návrhového procesu klikové hřídele vznětového dvoudobého motoru s protiběžnými písty, při níž je pro zadané průměry a délky čepů hledán optimální tvar ramen hřídele. Je zde popsán postup vzniku několika variant, které jsou následně podrobeny kritickému zhodnocení, a dále mechanismus výběru výsledného nejlepšího ...
Lubomír Drápal+2 more
openaire +2 more sources
Performance improvements of a highly integrated digital electronic control system for an F-15 airplane [PDF]
The NASA highly integrated digital electronic control (HIDEC) program is structured to conduct flight research into the benefits of integrating an aircraft flight control system with the engine control system.
Andries, M. G.+3 more
core +1 more source
A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring
Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo+4 more
wiley +1 more source
Study of small turbofan engines applicable to general-aviation aircraft [PDF]
The applicability of small turbofan engines to general aviation aircraft is discussed. The engine and engine/airplane performance, weight, size, and cost interrelationships are examined. The effects of specific engine noise constraints are evaluated. The
Alsworth, C. C.+2 more
core +1 more source
Unveiling the Corrosion Mechanisms of High‐Entropy RETaO4 Through In Situ Observation
Composition‐property relationships in multi‐component RETaO4 are unveiled. In situ XRD/TEM and EBSD expose dynamic crystallization pathways of the dominant corrosion product (pyrochlore) and reaction‐diffusion corrosion mechanisms. La1/6Nd1/6Sm1/6Eu1/6Gd1/6Dy1/6TaO4 emerges as the optimal composition, combining minimal corrosion layer thickness with ...
Zeyu Chen+7 more
wiley +1 more source
Discussion: “Vibration Characteristics of Aircraft-Engine Crankshafts: Report on a Series of Tests in Which a Recording Torsiometer Was Used” (Prescott, Ford L., 1930, Trans. ASME, 52(1), pp. 139–149) [PDF]
Roland Chilton
openalex +3 more sources
Modeling of the Diffusion Bond for SPF/DB Titanium Hollow Structures
Diffusion-bonded titanium hollow warren structures have been successfully applied in aircraft engine components, such as fan blade, and OGV, while the optimal design of the hollow warren structure to improve its impact resistance, especially under bird ...
Xianghai Chai+3 more
doaj +1 more source
Approximate dynamic model of a turbojet engine [PDF]
An approximate dynamic nonlinear model of a turbojet engine is elaborated on as a tool in studying the aircraft control loop, with the turbojet engine treated as an actuating component.
Artemov, O. A.
core +1 more source