Application of Sediment Fluidization by High Frequent Mechanical Vibrations into Slurry Transport

2020 ◽  
pp. 105-115
Author(s):  
Wenkai Wang ◽  
Guoliang Yu ◽  
Minxi Zhang
Keyword(s):  
Mechanical Vibrations ◽  
Slurry Transport

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 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.

Applications of elastomers in slurry transport

Wear ◽  
2021 ◽  
pp. 203773
Author(s):  
Yongsong Xie ◽  
Jiaren (Jimmy) Jiang ◽  
Md Aminul Islam
Keyword(s):  
Slurry Transport

Transport Characteristics of a Multi-Species Slurry in a Horizontal Pipeline

2001 ◽  
Author(s):  
P. V. Skudarnov ◽  
H. J. Kang ◽  
C. X. Lin ◽  
M. A. Ebadian ◽  
P. W. Gibbons ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Deposition Velocity ◽  
Single Species ◽  
Operating Conditions ◽  
High Level Waste ◽  
Slurry Flow ◽  
Flow Loop ◽  
Waste Transfer ◽  
High Level ◽  
Slurry Transport

Abstract In the course of the U.S. Department of Energy’s (DOE) tank waste retrieval, immobilization, and disposal activities, high-level waste transfer lines have the potential to become plugged. In response to DOE’s needs, Florida International University’s Hemispheric Center for Environmental Technology (FIU-HCET) is studying the mechanism and behavior of pipeline plugging to determine the pipeline operating conditions for safe slurry transport. Transport behavior of multi-species slurry has been studied in a 1-in O.D. pipeline flow loop. The slurry was a five-species mixture of Fe2O3, Al2O3, MnO2, Ni2O3, and SiO2, which simulated actual waste at the Savannah River DOE site. The relationship between the pressure drop in the straight horizontal sections of the flow loop and the mean slurry flow velocity was determined for two solids volume concentrations of 5.2 and 7.8%. Critical deposition velocity was measured from visual observations. An existing empirical model that predicts the pressure gradient for a single-species slurry flow in a horizontal pipeline was used to describe the pressure drop data.

scholarly journals Investigate the Influence of Mechanical Vibrations on the Hardness of Al5052 Weldments

2016 ◽  
Vol 9 (39) ◽  
Author(s):  
M. Vykunta Rao ◽  
P. Srinivasa Rao ◽  
B. Surendra Babu
Keyword(s):  
Mechanical Vibrations

scholarly journals Research on impacts of mechanical vibrations on the production machine to its rate of change of technical state

2016 ◽  
Vol 8 (7) ◽  
pp. 168781401665577 ◽  
Author(s):  
Štefánia Salokyová ◽  
Radoslav Krehel’ ◽  
Martin Pollák ◽  
Marek Kočiško
Keyword(s):  
Rate Of Change ◽  
Technical State ◽  
Mechanical Vibrations
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