Results 171 to 180 of about 179,602 (269)

Dynamic Modeling and Simulation of Morphing Wing Aircraft Considering Rigid‐Elastic Coupling Effects

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT During the morphing process, the dynamic modeling of the morphing wing aircraft presents the characteristics of rigid‐elastic coupling effects, moving boundaries, and low computational efficiency. Meanwhile, parameters such as aerodynamic forces/moments, center of pressure, center of mass, and moment of inertia would also change significantly,
Xu Zha   +5 more
wiley   +1 more source

Effect of Designed 3D Reinforcement in Mitigating Machining Damage on CFRP Plates

open access: yesPolymer Composites, EarlyView.
Effect of Edge Tufting on Surface Quality, Damage, and Mechanical Performance in CFRP Machining: A Comparative Topographical and Structural Analysis. ABSTRACT Composite materials made of carbon fiber‐reinforced epoxy (CFRP) are widely used in aerospace fields due to their high strength‐to‐weight ratio. However, due to low out‐of‐plane resistance, these
Thiago Luiz Lara Oliveira   +2 more
wiley   +1 more source

System controls challenges of hypersonic combined-cycle engine powered vehicles [PDF]

open access: yes
Hypersonic aircraft with air-breathing engines have been described as the most complex and challenging air/space vehicle designs ever attempted. This is particularly true for aircraft designed to accelerate to orbital velocities.
Ianculescu, George D.   +1 more
core   +1 more source

Impact and Post‐Impact Properties of Carbon Fiber Fabric Laminates Reinforced With Carbon Nanofibres

open access: yesPolymer Composites, EarlyView.
Carbon nanofiber addition on the low‐velocity impact response of carbon fiber laminates. ABSTRACT The use of carbon fiber reinforced polymers (CFRPs) is limited by their susceptibility to low‐velocity impact (LVI) damage. This study investigates the effect of incorporating 0.75 wt.% carbon nanofibres (CNFs) into the epoxy matrix of carbon fiber fabric ...
Paulo Santos   +2 more
wiley   +1 more source

Variability in airplane noise measurements [PDF]

open access: yes
Aircraft position and meteorological effects on accuracy of acoustic measurements for turbojet ...
Henderson, H. R., Hilton, D. A.
core   +1 more source

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