Results 131 to 140 of about 121,812 (366)

Modeling and Simulation of a Fluttering Cantilever in Channel Flow [PDF]

open access: yesarXiv, 2019
Characterizing the dynamics of a cantilever in channel flow is relevant to applications ranging from snoring to energy harvesting. Aeroelastic flutter induces large oscillating amplitudes and sharp changes with frequency that impact the operation of these systems.
arxiv  

Real-time flutter analysis of an active flutter-suppression system on a remotely piloted research aircraft [PDF]

open access: yes
Flight flutter-test results of the first aeroelastic research wing (ARW-1) of NASA's drones for aerodynamic and structural testing program are presented.
Edwards, J. W., Gilyard, G. B.
core   +1 more source

Catalytic Approaches for CO2 Conversion to Value‐Added Products: An Overview of Life Cycle Assessment Studies

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The catalytic conversion of CO2 into value‐added products provides an emerging strategy for reducing carbon emissions and improving environmental performance. This review compares different Life Cycle Assessment studies to evaluate the environmental impacts of CO2 conversion, focusing on the main challenges, technical limitations, and potential ...
Anastasia Pappa   +3 more
wiley   +1 more source

Wind Tunnel Measurements for Flutter of a Long-Afterbody Bridge Deck

open access: yesSensors, 2017
Bridges are an important component of transportation. Flutter is a self-excited, large amplitude vibration, which may lead to collapse of bridges. It must be understood and avoided.
Zeng-Shun Chen   +3 more
doaj   +1 more source

Douglas Experience in Flight Flutter Testing [PDF]

open access: yes
Douglas Aircraft Company experience in flight flutter testing is reviewed briefly, with comments on state-of-the-art excitation and instrumentation techniques used up to the present time. The limitations of previous techniques are discussed with emphasis
Philbrick, J.
core   +1 more source

Amphibious Generator via Mechanical Coupling for Versatile Energy Harvesting

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
An amphibious hybrid triboelectric nanogenerator–electromagnetic generator (TENG–EMG) efficiently harvests energy from wind and water. By integrating TENG and EMG units with a gear‐assisted mechanism, it enhances power output and powers small electronic devices.
Chi Zhang   +7 more
wiley   +1 more source

Set Membership Strategy for Closed Loop Aircraft Flutter Controller Design

open access: yesIEEE Access
We consider the problem of set membership identification and control for closed loop aircraft flutter platform within the practical case of bounded noise.
Liu Yunhong, Wang JIanhong
doaj   +1 more source

Passive control of wing/store flutter [PDF]

open access: yes
Results are presented for a passive flutter suppression approach known as the decoupler pylon. The decoupler pylon dynamically isolates the wing from store pitch inertia effects by means of soft spring/damper elements assisted by a low frequency feedback
Cazier, F. W., Jr.   +2 more
core   +1 more source

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