Channel Dynamics in Few-Mode Fiber Transmission Under Mechanical Vibrations

2020 ◽  
Author(s):  
Georg Rademacher ◽  
Roland Ryf ◽  
Nicolas K. Fontaine ◽  
Haoshuo Chen ◽  
Benjamin J. Puttnam ◽  
...  
Keyword(s):  
Mechanical Vibrations ◽  
Channel Dynamics ◽  
Fiber Transmission

scholarly journals Влияние механической вибрации на оптические свойства инфракрасных световодов состава AgCl-AgBr

2020 ◽  
Vol 46 (9) ◽  
pp. 13
Author(s):  
А.С. Шмыгалев ◽  
А. Тураби ◽  
Д.А. Васильева ◽  
Б.П. Жилкин ◽  
Л.В. Жукова
Keyword(s):  
Optical Transmission ◽  
Mechanical Vibrations ◽  
Selective Character ◽  
Fiber Transmission

The influence of mechanical vibrations on the optical transmission of infrared fibers of AgCl0.25Br0.75 and AgCl0.5Br0.5 within 30 hours was investigated. It was demonstrated, that vibration effects on the fibers leads to decrease of their transmittance. The selective character of infrared fiber transmission in wavelength ranges 2.0–4.0 μm and 6.0–9.0 μm was found.

RESEARCH RESPONSE QUENCHER MECHANICAL VIBRATIONS BY THE FORMULA Of CARDANO

2013 ◽  
Vol 33 (0) ◽  
pp. 181-185
Author(s):  
М. І. Ігнатишин ◽  
І. Д. Рубіш
Keyword(s):  
Mechanical Vibrations

scholarly journals Many-channel dynamics, Levinson's theorem for eigenamplitudes and one-channel CDD poles

1966 ◽  
Vol 37 (1) ◽  
pp. 77-103 ◽  
Author(s):  
D Atkinson ◽  
K Dietz ◽  
D Morgan
Keyword(s):  
Channel Dynamics ◽  
Levinson’S Theorem

scholarly journals Model approach for electromagnetically excited mechanical vibrations in direct-drive wind turbines

2020 ◽  
Vol 1618 ◽  
pp. 022060
Author(s):  
Christoph Mülder ◽  
Tobias Duda ◽  
Georg Jacobs ◽  
Kay Hameyer
Keyword(s):  
Wind Turbines ◽  
Direct Drive ◽  
Mechanical Vibrations ◽  
Model Approach

The effect of vibratory conditioning on tensile strength and microstructure of 1018 mild steel

2020 ◽  
Vol 17 (6) ◽  
pp. 837-844 ◽  
Author(s):  
Venkata Suresh Bade ◽  
Srinivasa Rao P. ◽  
Govinda Rao P.
Keyword(s):  
Tensile Strength ◽  
Mild Steel ◽  
Fusion Zone ◽  
Dc Motor ◽  
Grain Structure ◽  
Internal Stresses ◽  
Skilled Workers ◽  
Mechanical Vibrations ◽  
Content Type ◽  
Weld Defects

Purpose The purpose of this paper is to investigate the prominence of mechanical excitations at the time of welding. In the past years, the process of welding technology has expanded its influence in manufacturing. The crucial drawback of conventional welding is prompted by internal stresses and distortions, which is the focal reason for weld defects. These weld defects can be diminished by the process called post-weld heat treatment (PWHT), which consumes more working hours and needs skilled workers. To replace these PWHT processes, mechanical vibrations are introduced during the process of welding to diminish these weld defects. Design/methodology/approach In the current research, the mechanical vibrations are transferred to weld-pool through vibro-motor and DC motor connected to the electrode. As per standards, the tensile test specimens were prepared for welding with different voltages of vibro-motor and DC motor respectively. The weld joints were tested for tensile strength and analyzed the microstructure at the fusion zone. Findings Melt-ability at fusion zone of 1018 mild steel was investigated by the single-stroke intense heat process of fusion welding. It is observed that the mechanical vibrations technique has a profound influence on the enhancement of the fusion zone characteristics and grain structure. The peak value of the tensile strength is observed at 100 s of vibration, 190 V of vibro-motor voltage and 18 V of electrode voltage. The tensile strength of the welded joints with vibrations is increased up to 22.64% when it is compared with conventional welding. The enhancement of the tensile strength of the weld bead was obtained because of the formation of fine grain structure. So, mechanical vibrations are identified as the most convenient method for improving the mild steel alloys weld quality. Originality/value A novel approach called mechanical vibrations during the process of welding is implemented for fusion zone refinement.

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