Investigation of the stressed state of the lower part of the penstock of the Krasnoyarsk Hydroelectric Station

1967 ◽  
Vol 1 (8) ◽  
pp. 710-712 ◽  
Author(s):  
A. M. Gol'dberg ◽  
Ya. M. Shiryaev ◽  
S. N. Éigensen
Keyword(s):  
Stressed State ◽  
Hydroelectric Station

Seismic stressed state of underground hydraulic structures at the Rogun hydroelectric station

1983 ◽  
Vol 17 (4) ◽  
pp. 151-155
Author(s):  
D. V. Monakhenko ◽  
Ya. N. Tsukerman ◽  
S. G. Shul'man
Keyword(s):  
Stressed State ◽  
Hydroelectric Station ◽  
Hydraulic Structures

EFFECT OF BEDLOAD SEDIMENT NATURAL COMPOSITION ON GEOMETRIC AND DINAMIC CHARACTERISTICS OF CHANNEL FORMS

2018 ◽  
pp. 36-39
Author(s):  
N Ikramov ◽  
T Majidov
Keyword(s):  
Research Work ◽  
Laboratory Data ◽  
Hydroelectric Station ◽  
Negative Consequences ◽  
Movement Velocity ◽  
Reservoir Volume ◽  
Pump Station ◽  
Cross Section Area ◽  
Section Area ◽  
Bedload Sediment

The article brings up data on sediment diversity at watercourse bed and on their movement in the form of ridges. The ridge form movement of sediment leads to the reduction of reservoir volume and canal cross section area, which has an effect on their carrying capacity, filling of pump station forechambers and hydroelectric station pressure basins with sediment. The presence of sediment in flow leads to abrasive deterioration of pumps, water motors and pressure pipes and to other negative consequences. Research work tasks on the study of these effects have been examined with the purpose of preventing such negative consequences. On the basis of laboratory data diagrams and relationships were obtained for ridge length, height and movement velocity vs. sediment hydraulic and geometric sizes.

Bending of sheets and profiles on a four-roll machine for rocket bodies, tube and frame products. Part 4

2020 ◽  
pp. 45-54
Author(s):  
V.A. Zharkov
Keyword(s):  
Mathematical Model ◽  
Stressed State ◽  
Sheet Stamping ◽  
Formation Of Cracks ◽  
Processing Steps

A theory and a mathematical model are developed for calculating the parameters of the strain-stressed state at the stages of pre-bending, calibration, straightening and bending of the straightened section, taking into account the strengthening of the billet on a roll machine. By CAD/CAE modeling the strains, stresses and forces acting on the billet from the rolls are investigated. Criteria for the formation of cracks, low accuracy and excessive springing of the billet after these processing steps are determined, recommendations are given for their elimination. Keywords billet, sheet stamping, bending, roll machine, pre-bending, calibration, straightening, bending of the straightened section, CAD/CAE modeling. [email protected]

Two-Dimensional Stressed State of an Adhesive Joint. Nonclassical Problem

2021 ◽  
Vol 254 (1) ◽  
pp. 156-163
Author(s):  
S. S. Kurennov ◽  
О. G. Polyakov ◽  
K. P. Barakhov
Keyword(s):  
Stressed State ◽  
Adhesive Joint ◽  
Two Dimensional ◽  
Nonclassical Problem
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