scholarly journals Experimental investigation of low-frequency pulsed Lorentz force influence on the motion of galinstan melt

2016 ◽  
Vol 248 (3) ◽  
pp. 39-51 ◽  
Author(s):  
D.A. Musaeva ◽  
V.K. Ilin ◽  
V. Geza ◽  
E. Baake
Keyword(s):  
Experimental Investigation ◽  
Lorentz Force ◽  
Low Frequency

Analysis of the AlMgSi-alloy structure formed under the influence of low-frequency pulsed Lorentz force

2017 ◽  
Vol 53 (2) ◽  
pp. 245-254 ◽  
Author(s):  
D. Musaeva ◽  
E. Baake ◽  
V. Ilin ◽  
G. Jarczyk
Keyword(s):  
Lorentz Force ◽  
Low Frequency ◽  
Alloy Structure ◽  
Almgsi Alloy

scholarly journals Mitigating Large Vibrations of Stayed Cables in Wind and Rain Hazards

2020 ◽  
Vol 2020 ◽  
pp. 1-10 ◽  
Author(s):  
Hung Vo-Duy ◽  
Cung H. Nguyen
Keyword(s):  
Experimental Investigation ◽  
Wind Tunnel ◽  
Significant Role ◽  
Low Frequency ◽  
Vortex Flows ◽  
Complex Mechanism ◽  
High Wind ◽  
Wind Speeds ◽  
Cable Vibrations

This paper presents an experimental investigation of stayed cable vibrations in dry-wind and rain-wind coupling hazards. To mitigate large vibrations of the cable, the use of spiral wires wrapped around the cable is proposed. By testing two cable models in a wind tunnel in dry and rain conditions for different yaw angles and wind speeds, the effectiveness of using the spiral wires to mitigate large vibrations is clarified. Finally, the paper provides a further understanding of the complex mechanism of wind-induced and rain-wind-induced vibrations. It is found that the low-frequency vortex flows in the wake play a significant role in the excitation of large responses of the cable in high wind speeds. The spiral wires dismiss these low-frequency flows and then reduce the large vibrations.

Experimental investigation of theoretical stability regions for ultra-low frequency oscillations of hydropower generating systems

Energy ◽  
2019 ◽  
Vol 186 ◽  
pp. 115816 ◽  
Author(s):  
Weijia Yang ◽  
Jiandong Yang ◽  
Wei Zeng ◽  
Renbo Tang ◽  
Liangyu Hou ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Low Frequency ◽  
Stability Regions ◽  
Low Frequency Oscillations
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