Results 81 to 90 of about 244,669 (294)

Experiments of opening and cavity shear flow-induced vibration and structural coupling resonance

Zhongguo Jianchuan Yanjiu, 2017
In order to discuss opening and cavity shear flow-induced vibration and structural coupling resonance, experiments of opening and cavity shear flow-induced vibration and structural noise control are carried out.
XIONG Jishi, LV Shijin, QIU Changlin, WANG Chunxu, CHEN Zhigang   +4 more
doaj   +1 more source

Magnetoquantum Oscillations at THz Frequencies in InSb [PDF]

Physical Review Letters, 2017
The ac magnetoconductance of bulk InSb at THz frequencies in high magnetic fields, as measured by the transmission of THz radiation, shows a field-induced transmission, which at high temperatures (≈100  K) is well explained with classical magnetoplasma effects (helicon waves).
Gogoi, P., Kamenskyi, D., Arslanov, D., Jongma, R.T., van der Zande, W.J., Redlich, B., Meer, A.F.G. van der, Engelkamp, H., Christianen, P.C.M., Maan, J.C.   +9 more
openaire   +3 more sources

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Examination of oscillation frequency for combustion oscillation considering acoustic boundary conditions

Nihon Kikai Gakkai ronbunshu, 2018
Hydrogen combustion is attracting attentions because of zero CO2 emission. Recently, a gas turbine which uses hydrogen-rich fuel is being developed. In our previous study, we examined the influence of hydrogen-containing ratio on combustion oscillation ...
Akane UEMICHI, Ippei KANETSUKI, Shigehiko KANEKO   +2 more
doaj   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

FEM effective suggestion of guitar construction

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2006
Modal analysis of the whole guitar construction was performed. The results of eigenfrequencies were obtained. Stress in strings affects not only static loading of material, but also shift of eigenfrequencies.
Vladimír Dániel, Petr Koňas
doaj   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

Advanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle, Andreas Limper, Ulrich Giese, Carlos Lucke, Mario Beiner, Christoph Gögelein, Lisa Leuchtenberger‐Engel, Christian Hopmann   +7 more
wiley   +1 more source

Amplitude and frequency of human gait synchronization with a machine oscillator system

Scientific Reports
Humans sometimes synchronize their steps to mechanical oscillations in the environment (e.g., when walking on a swaying bridge or with a wearable robot).
Ryan T. Schroeder, James L. Croft, John E. A. Bertram   +2 more
doaj   +1 more source

Određivanje sopstvenih učestanosti i oblika oscilovanja delova planetarnog prenosnika primenom metode konačnih elemenata / Determining of natural frequencies and forms of oscillation of the parts of planetary gear trains using finite element method

Vojnotehnički Glasnik, 2007
U radu je prikazan metodološki pristup određivanju sopstvenih učestanosti i vibracionih modova delova planetarnog prenosnika korišćenjem metode konačnih elemenata.
Vojislav Batinić
doaj   +1 more source