Zobrazeno 1 - 10
of 20
pro vyhledávání: '"O. S. Afanas'eva"'
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 3(32), Pp 190-194 (2013)
The system of difference equations describing the process of industrial fish catching while their abundance is maintained is proposed. Population size changing and, consequently, the volume of catch are predicted on the basis of this model study. The
Externí odkaz:
https://doaj.org/article/52c4c436b7fd4a01bb3dd4d57e030e82
Autor:
O. S. Afanas'eva, G. F. Egorova
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 4(25), Pp 134-145 (2011)
Procedure of calculation of three- and four-component eutectic system temperature and composition on the basis of two-component systems known characteristics and the initial substances known melting-points is introduced. The suggested empirical formu
Externí odkaz:
https://doaj.org/article/3b5d8bcf3fa247d890a31978131c2b6c
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 1(20), Pp 218-221 (2010)
The results of fatigue testing and measurement of residual stress of surface-hardened smooth samples and samples with a notch are given. It was established that the test mean integral residual stress can be used to predict the fatigue endurance limit
Externí odkaz:
https://doaj.org/article/026d1a541227499e8eabc8a952a11ad8
Autor:
V. P. Radchenko, O. S. Afanas'eva
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 2(19), Pp 264-268 (2009)
Calculation procedure of influence of temperature endurances on an increment of a fatique point for strengthened cylindrical specimen with pressure concentrators is proposed. In order to illustrate the method on modelling examples it is demonstrated
Externí odkaz:
https://doaj.org/article/de469ba803fe430a9e7503f6a303cbf3
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 1(18), Pp 101-113 (2009)
The cycle of experimental and theoretical researches on influence of thermal loads on a relaxation of residual stresses in hardened layer of the cylindrical and vee-notched specimens from steel EI 691 is executed. It is shown that the residual stress
Externí odkaz:
https://doaj.org/article/69084a0e290444f084532abd1db6d446
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 1(18), Pp 228-238 (2009)
Procedure of calculation of two-component eutectic system temperature and composition on the basis of the initial substances known melting-points is introduced. Statistical reliability of systems with calculation error not surpassing 10 % makes 78 %.
Externí odkaz:
https://doaj.org/article/da58c95de0f744a388253600b38fe663
Autor:
O. S. Afanas'eva, M. N. Saushkin
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 2(17), Pp 133-142 (2008)
New approach to solution of a problem of residual stresses relaxation in the strengthened layer of cylindrical sample is proposed based on the direct numerical solution of a generated value boundary problem. Design formulas on which basis are receive
Externí odkaz:
https://doaj.org/article/3d82938256484a2a86cbd8aed50311a8
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 1(16), Pp 85-89 (2008)
The scheme fields of residual stresses and plastic deformation in the surface layer of cylindrical samples calculations offered. Technological factors hardening procedures taken into account. Analysis of the held calculations completed.
Externí odkaz:
https://doaj.org/article/862b68bcca1d4ad5b2a707eaaec6d523
Autor:
M. N. Saushkin, O. S. Afanas'eva
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 2(15), Pp 51-59 (2007)
The general method for calculation the residual stresses relaxation in surface hardened layer of cylindrical concentration in the construction elements for the plane problem under creep conditions is described. The residual stresses relaxation proble
Externí odkaz:
https://doaj.org/article/feae74db728f49feb182554da259b8c4
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 1(14), Pp 62-70 (2007)
The method for calculation and estimation of the residual stress in the surface-hardened layer of the rotating blade under creep condition is developed. The base of this method is the hypothesis that the hardened layer has no effect on the structural
Externí odkaz:
https://doaj.org/article/48fd896b992846c9b764799a509b2e77