scholarly journals Robustness of a multimodal piezoelectric damping involving the electrical analogue of a plate

2016 ◽  
Author(s):  
Boris Lossouarn ◽  
Kenneth A. Cunefare ◽  
Mathieu Aucejo ◽  
Jean-François Deü
Keyword(s):  
Electrical Analogue

The Effect of Cutoffs on the Uplift Pressure Beneath the Hydraulic Structures Floor

2018 ◽  
Vol 6 (3) ◽  
pp. 20-28
Author(s):  
Faisal Al Tabatabaie ◽  
Dhabia Sabeeh Al Waily
Keyword(s):  
Potential Energy ◽  
Hydraulic Structure ◽  
Hydraulic Structures ◽  
Outer Face ◽  
Analogue Model ◽  
Electrical Analogue ◽  
Uplift Pressure ◽  
Different Depths ◽  
The Stability ◽  
Critical Sections

The use of cutoffs underneath the hydraulic structures is considered a safe solution to ensure the stability of hydraulic structure against uplift pressure and piping phenomenon in addition to the sliding and overturning forces of the water. These cutoffs are used at critical sections underneath the floor of hydraulic structure to substitute with their depths the horizontal lengths of the creep line of the hydraulic structure base. In this paper, the experimental method- by using electrical analogue model- was carried out to plot the flow net and study the efficiency of the front and rear faces of the cutoffs for dissipating the potential energy of the percolating water underneath the floor of hydraulic structure. An electrical analogue model which was used in this study consists of twenty five models with different depths of upstream and downstream cutoffs. After plotting the flow net for all models, it is concluded that the efficiency of the inner sides are less than that of the outer sides which were investigated before in this topic of this work that both faces reduction values in the uplift pressure are considered the same, where the efficiency of the outer face of upstream cutoff is (70.35) % and for the inner face is (29.64)%, while for the downstream cutoff the efficiency for the outer face is (76.21)% and for the inner face is (23.79)% .

An Electrical Analogue in Lighting Technology

1979 ◽  
Vol 8 (1) ◽  
pp. 9-11
Author(s):  
V. K. Maitreya
Keyword(s):  
Electrical Analogue ◽  
Lighting Technology

Elastic Stress Concentrations for the Torsion of Hollow Shouldered Shafts Determined by an Electrical Analogue

1964 ◽  
Vol 15 (1) ◽  
pp. 83-96 ◽  
Author(s):  
K. R. Rushton
Keyword(s):  
Stress Concentration ◽  
Elastic Stress ◽  
Plastic Region ◽  
Stress Concentrations ◽  
Electrical Analogue ◽  
Shoulder Diameter ◽  
Concentration Factors ◽  
Stress Concentration Factors

SummaryThe elastic stress concentration factors for the torsion of solid and hollow shouldered shafts have been determined by means of a pure resistance electrical analogue. Fillet radii ranged from 0.05 to 1.0 times the diameter of the smaller shaft, and the shoulder diameter increased from 1.0 to 8.10 times the diameter of the smaller shaft. A comparison is made with the results of other techniques. A study has also been made of the formation of a plastic region in the neighbourhood of the fillet.

An electrical analogue for electrodialysis

Desalination ◽  
1968 ◽  
Vol 5 (3) ◽  
pp. 267-291 ◽  
Author(s):  
Georges Belfort ◽  
G.A. Guter
Keyword(s):  
Electrical Analogue

A Lecture Demonstration of Energy Level Splitting in the Hydrogen Molecule Based on Coupled Electric Resonant Circuits

1979 ◽  
Vol 16 (1) ◽  
pp. 17-25
Author(s):  
S. Middelhoek ◽  
W. S. M. Beke
Keyword(s):  
Hydrogen Atom ◽  
Energy Level ◽  
Differential Equations ◽  
Hydrogen Molecule ◽  
Mutual Inductance ◽  
Electrical Analogue ◽  
Level Splitting ◽  
Lecture Demonstration

A description is given of a lecture demonstration of energy level splitting in the hydrogen molecule. The demonstration is based on the electrical analogue of two coupled resonant circuits. Coupling occurs by mutual inductance. The relevant differential equations describing the hydrogen atom and the tuned circuits are also presented.

Paper 2: Surface Topography Effects in the Estimation of Thermal and Electrical Contact Resistance

1967 ◽  
Vol 182 (11) ◽  
pp. 81-91 ◽  
Author(s):  
F. C. Yip ◽  
J. E. S. Venart
Keyword(s):  
Contact Resistance ◽  
Surface Topography ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
Electrical Contact ◽  
Surface Waviness ◽  
Electrical Contact Resistance ◽  
Electrical Analogue ◽  
Analogue Study ◽  
Asperity Distribution

A method of determining the constrictional thermal contact resistance is proposed and discussed. Consideration is given to modelling the simultaneous effects of asperity distribution and roughness, and surface waviness. The resulting general analysis can be applied to any known surface topography in contact with another. Application and comparison utilizing the method are made to the results of an electrical analogue study.

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