Effect of Technological Factors on the Operating Stability of Bearings from Steel ÉI347-Sh

Author(s):  
S. A. Kotov ◽  
S.-V. R. Muzafarova ◽  
G. S. Seval’nev
2017 ◽  
Vol 2 (2) ◽  
pp. 65-74
Author(s):  
Roberto Cabardo ◽  
◽  
Jessica Avenido ◽  
Efren Barabat ◽  
◽  
...  

2020 ◽  
Vol 14 (4) ◽  
pp. 7369-7378
Author(s):  
Ky-Quang Pham ◽  
Xuan-Truong Le ◽  
Cong-Truong Dinh

Splitter blades located between stator blades in a single-stage axial compressor were proposed and investigated in this work to find their effects on aerodynamic performance and operating stability. Aerodynamic performance of the compressor was evaluated using three-dimensional Reynolds-averaged Navier-Stokes equations using the k-e turbulence model with a scalable wall function. The numerical results for the typical performance parameters without stator splitter blades were validated in comparison with experimental data. The numerical results of a parametric study using four geometric parameters (chord length, coverage angle, height and position) of the stator splitter blades showed that the operational stability of the single-stage axial compressor enhances remarkably using the stator splitter blades. The splitters were effective in suppressing flow separation in the stator domain of the compressor at near-stall condition which affects considerably the aerodynamic performance of the compressor.


2020 ◽  
Vol 8 (14) ◽  
pp. 137-144
Author(s):  
Oksana Naumenko ◽  
◽  
Tetiana Polonska ◽  
Inna Hetman ◽  
Nataliia Bela ◽  
...  

2018 ◽  
pp. 54-55
Author(s):  
A.V. Begunova ◽  
◽  
I.V. Rozhkova ◽  
T.A. Raskoshnaya ◽  
T.I. Shyrshova ◽  
...  

The author presented experimental data on the influence of technological factors on the quality indexes of tablets based on a cryoliofilized salmonella bacteriophage. The analysis of the technological properties of model granules with such parameters as bulk density, flow ability, vibration compacting index, Hausner index, Сarr's index showed that the fractional composition of the granules should contain no more than 33 % of the pulverized fraction (0,25 mm or less). The granulate, regardless of its fractional composition, has elastic-plastic properties characterizing the strength of the tablets. The influence of the pressing pressure of the cryoliofilized composition tablets with salmonella bacteriophage on the crush strength and disintegration of enteric-soluble tablets was studied. The optimum compression pressure of tablets within 60 mPa of granules with a content of pulp fraction (0.25 mm or less) is not to be higher than 33 %.


2020 ◽  
Vol 1 (2) ◽  
pp. 14-18
Author(s):  
L.I. Kuznetsova ◽  
◽  
M.N. Kostyuchenko ◽  
O.A. Savkina ◽  
M.S. Burykina ◽  
...  

Author(s):  
Igor Chilin ◽  

Приведены результаты исследований и выполнена оценка влияния технологических факторов на реологические свойства самоуплотняющихся сталефибробетонных смесей, определены кратковременные и длительные физико-механические и деформативные характеристики сверхвысокопрочного сталефибробетона, включая определение его фактической морозостойкости.


Sign in / Sign up

Export Citation Format

Share Document