Results 61 to 70 of about 36,766 (308)

Measurement and analysis of moment of inertia using torsional pendulum method with air damping consideration

Jixie qiangdu
To address the issue of accuracy degradation caused by aerodynamic damping when measuring the moment of inertia of irregular specimens with large airfoil surfaces using the torsional pendulum method, a compensation approach based on drag simulation ...
MA Weiping, ZHAO He, SONG Yuzhou, LI Tenglong   +3 more
doaj   +2 more sources

Multi-Frequency Aeroelastic ROM for Transonic Compressors

Aerospace
The accurate prediction of the aeroelastic behavior of turbomachinery for aircraft propulsion poses a difficult yet fundamental challenge, since modern aircraft engines tend to adopt increasingly slender blades to achieve a higher aerodynamic efficiency,
Marco Casoni, Andrea Magrini, Ernesto Benini   +2 more
doaj   +1 more source

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

Advanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul, Archith Rayabharam, Lisa Almonte, Eveline Rigo, Joshy Joseph, Ashutosh Kumar, Zhuxin Dong, Narayana Aluru, Gregory Timp   +8 more
wiley   +1 more source

Coupling Vibration Characteristics and Wind-Induced Responses of Large-Span Transmission Lines Under Multi-Dimensional Wind

Buildings
Transmission lines, crucial for power and urban infrastructure, are vulnerable to wind damage; this paper addresses research gaps in tower-line systems under multi-dimensional wind loads and aerodynamic damping.
Wenping Xie, Zhenhua Li, Wenlong Du, Xing Fu   +3 more
doaj   +1 more source

Numerical study on surface distributed vortex-induced force on a flat-steel-box girder

Engineering Applications of Computational Fluid Mechanics, 2018
To ensure the safety of bridges, the comfort of pedestrians and vehicles on bridges, the vortex-induced forces on flat-steel-box girders need to be investigated.
Xing-Yu Chen, Bin Wang, Le-Dong Zhu, Yong-Le Li   +3 more
doaj   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

Investigation of Directionality Effect for 10 MW Monopile Offshore Wind Turbine Excited by Wind, Wave, and Earthquakes

Journal of Marine Science and Engineering
Offshore wind turbines (OWTs) exhibit inherent directional variations in inertia, stiffness, and damping properties. This study examines the directionality effect of a 10 MW monopile-supported OWT using an integrated rotor-nacelle assembly (RNA) and ...
Renqiang Xi, Qingxuan Zhou, Yongqing Lai, Wanli Yu   +3 more
doaj   +1 more source

Influence of Icing on the Modal Behavior of Wind Turbine Blades

Energies, 2016
Wind turbines installed in cold climate sites accumulate ice on their structures. Icing of the rotor blades reduces turbine power output and increases loads, vibrations, noise, and safety risks due to the potential ice throw.
Sudhakar Gantasala, Jean-Claude Luneno, Jan-Olov Aidanpää   +2 more
doaj   +1 more source

An efficient frequency-domain model for quick load analysis of floating offshore wind turbines [PDF]

Wind Energy Science, 2018
A model for Quick Load Analysis of Floating wind turbines (QuLAF) is presented and validated here. The model is a linear, frequency-domain, efficient tool with four planar degrees of freedom: floater surge, heave, pitch and first tower modal ...
A. Pegalajar-Jurado, M. Borg, H. Bredmose   +2 more
doaj   +1 more source

Planetesimal-driven planet migration in the presence of a gas disk

, 2010
We report here on an extension of a previous study by Kirsh et al. (2009) of planetesimal-driven migration using our N-body code SyMBA (Duncan et al., 1998). The previous work focused on the case of a single planet of mass Mem, immersed in a planetesimal
Adachi, Brasser, Chiang, Christopher C. Capobianco, Cuzzi, Dohnanyi, Duncan, Fernandez, Goldreich, Gomes, Haisch, Harold F. Levison, Hayashi, Hubickyj, Ida, Inaba, Kary, Kirsh, Kokubo, Korycansky, Levison, Lyra, Malhotra, Martin Duncan, Masset, Mizuno, Paardekooper, Paardekooper, Paardekooper, Papaloizou, Pollack, Rafikov, Sousa, Thommes, Udry, Ward, Ward, Wetherill, Wisdom   +38 more
core   +1 more source