Труды сотрудников ИВМ СО РАН

[Text] : статья / G.G. Krushenko // Вестник СибГАУ. - 2010. - Вып. 3(29). - p. 158-160
   Перевод заглавия: Испытание механических свойств алюминиево-кремниевых сплавов на отдельно отлитых образцах

Полный текст на сайте журнала


Доп.точки доступа:
Крушенко, Генрих Гаврилович

[Text] : статья / G.G. Krushenko // Вестник СибГАУ. - 2012. - Вып. 2(42). - p. 135-136
   Перевод заглавия: Математическое моделирование механических свойств конструкционных сталей

Полный текст на сайте журнала,
Полный текст

Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44

Доп.точки доступа:
Крушенко, Генрих Гаврилович

[Текст] : статья / A. P. Gavrilyuk [и др.] // Russian Physics Journal. - 1999. - Vol. 42, № 8
Аннотация: The results obtained by the authors in studies of the mechanical action of resonance laser light on gas and plasma are briefly reviewed.

Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44

Доп.точки доступа:
Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Krasnov, I.V.; Краснов, Игорь Васильевич; Polyutov, S.P.; Shaparev, N.Ya.; Шапарев, Николай Якимович

/ A.V. Vyatkin // Autom. Remote Control. - 2013. - Vol. 74, Is. 2. - P325-330, DOI 10.1134/S0005117913020173. - Cited References: 9. - This work was supported by the Russian Foundation for Basic Research, project no. 08-01-00621, and by the Russian President's Program, project no. NSh-3431.2008.9. . - 6. - ISSN 0005-1179РУБ Automation & Control Systems + Instruments & Instrumentation

Аннотация: The behavior of the explicit Runge-Kutta methods having the second, fourth and eighth orders of accuracy is analyzed at the singular point in the two-body problem. Numerical solutions are compared with their analytical counterpart. As the adequacy criterion for an approximate solution, the conservation law of the total mechanical energy is considered.


Доп.точки доступа:
Vyatkin, A.V.; Вяткин, Александр Владимирович

[Text] / E.D. Karepova, V.V. Shaidurov // RECENT ADVANCES IN FLUID MECHANICS. Ser. WSEAS Mechanical Engineering Series : WORLD SCIENTIFIC AND ENGINEERING ACAD AND SOC, 2009. - 6th WSEAS International Conference on Fluid Mechanics (JAN 10-12, 2009, Ningbo, PEOPLES R CHINA). - pp. 121-125. - Cited References: 0 . - ISBN 978-960-474-040-6РУБ Engineering, Mechanical + Mathematics, Applied

Аннотация: In this paper the Navier-Stokes equations are solved for heat-conductive medium. At first the system of equations are equivalently transformed and then discretized by bilinear finite elements in space and by Crank-Nicholson scheme in time. It produces stable scheme with low artificial viscosity.


Доп.точки доступа:
Karepova, E.D.; Карепова, Евгения Дмитриевна; Shaidurov, V.V.; Шайдуров, Владимир Викторович

/ V. M. Sadovskii // Proceedings of XLI International Summer School–Conference APM 2013. - 2013. - P493-500
Аннотация: Based on the equations of dynamics of a structurally inhomogeneous elastic medium taking into account the rotational degrees of freedom of the particles of microstructure, a simplified mathematical model is worked out for description of the wave motion in nematic liquid crystals under the influence of weak mechanical and thermal perturbations. It is shown that in the case of plane strain the shear stress in such a medium satisfies the Klein–Gordon equation, describing the oscillatory nature of particles rotation. The results of numerical computations shows that the natural frequency of rotational motion of the particles, determined by this equation, is the resonance characteristic of a material, and it is independent of the size of a sample and of the loading conditions.

Полный текст

Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44

Доп.точки доступа:
Садовский, Владимир Михайлович

/ V. M. Sadovskii, O. V. Sadovskaya // Physical Mesomechanics. - 2013. - Vol. 16, № 4. - P312-318, DOI 10.1134/S102995991304005X . - ISSN 1029-9599
Аннотация: Based on dynamic equations of a heterogeneous elastic medium which take into account rotational degrees of freedom of microstructure particles, a simplified mathematical model was constructed to describe the wave motions of a nematic liquid crystal under weak mechanical and temperature perturbations. It is shown that in the medium under plane deformation, the tangential stress obeys the Klein-Gordon equation of oscillatory particle rotation. Consideration is given to the possibility of initiating rotational waves in a nematic liquid crystal, which change its optical properties, due to heat sources acting at its boundary. © 2013 Pleiades Publishing, Ltd.

Scopus,
Полный текст

Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44

Доп.точки доступа:
Sadovskaya, O.V.; Садовская, Оксана Викторовна; Sadovsky V.M.

/ G. G. Krushenko // Melts Moscow. - 1991. - Vol. 4, Is. 4. - P291-294 . - ISSN 0895-7738
Аннотация: The effects of ultrasonic treatment and x-irradiation on the physical properties of the aluminum-silicon alloy SILO are studied.

Scopus

Держатели документа:
Computer Cent Acad of Sciences of, the USSR, Krasnoyarsk, Russian Federation
ИВМ СО РАН

Доп.точки доступа:
Krushenko, G.G.; Крушенко, Генрих Гаврилович

[Text] / B. D. ANNIN, V. M. SADOVSKY // Compos. Sci. Technol. - 1992. - Vol. 45, Is. 3. - P241-246, DOI 10.1016/0266-3538(92)90085-H. - Cited References: 7 . - ISSN 0266-3538РУБ Materials Science, Composites

Аннотация: The paper presents an algorithm of a numerical solution of two-dimensional (plane and axisymmetric) contact problems for homogeneous elastic-plastic plates, assemblages of layers and laminated plates deformed in dies of arbitrary shapes. An analysis of some mechanical effects observed in explosive sheet-stamping and hydro-sheet-stamping is also presented.

WOS

Держатели документа:
USSR ACAD SCI,CTR COMP,KRASNOYARSK,USSR
ИВМ СО РАН

Доп.точки доступа:
ANNIN, B.D.; SADOVSKY, V.M.; Садовский, Владимир Михайлович

[Text] / I. I. Koksharov, G. G. Krushenko // Ind. Lab. - 1996. - Vol. 62, Is. 5. - P309-310. - Cited References: 4 . - ISSN 0019-8447РУБ Instruments & Instrumentation + Materials Science, Characterization & Testing

Аннотация: A method of correction for the ultimate strength rho(u) and its application to curved test specimens cut out of outboard motor propeller blades cast from commercial aluminum-silicon alloy are described. The corrected values of sigma(u) and other mechanical characteristics are shown to meet the standard requirements.

WOS,
Scopus

Держатели документа:
Computer Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
ИВМ СО РАН

Доп.точки доступа:
Koksharov, I.I.; Кокшаров, Игорь Ильич; Krushenko, G.G.; Крушенко, Генрих Гаврилович

/ A. P. Gavrilyuk // Russian Physics Journal. - 1998. - Vol. 41, Is. 6. - P511-516 . - ISSN 1064-8887
Аннотация: A model is considered for the interaction with plasma of an "optical membrane " formed by bichromatic intersecting laser beams. This model is used to describe a number of effects resulting from the mechanical action of light on resonant ions in the plasma. В© 1999 Kluwer Academic/Plenum Publishers.

Scopus

Держатели документа:
Krasnoyarsk Computing Center, Siberian Branch of the Russian Academy of Sciences, Russian Federation
ИВМ СО РАН

Доп.точки доступа:
Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович

/ V. M. Sadovskii // AIP Conference Proceedings. - 2014. - Vol. 1629: 6th International Conference for Promoting the Application of Mathematics in Technical and Natural Sciences, AMiTaNS 2014 (26 June 2014 through 1 July 2014, ) Conference code: 109043. - P311-318, DOI 10.1063/1.4902287 . -
Аннотация: The paper is devoted to the construction of the simplified mathematical model of thermomechanical behavior of a liquid crystal under the influence of weak mechanical and thermal perturbations. This model is based on the nonlinear equations of a micropolar viscoelastic medium with rotating particles. To describe small strains and finite rotations of molecules, the hypothesis of the dependence of potential energy on the volume change, on the angle of relative rotation and on the entropy is used in the framework of the method of internal thermodynamic parameters. The heat conduction process is described taking into account the anisotropy of a material due to the difference in coefficients of thermal conductivity along the axis of orientation of the particles and in the transverse direction. Separate equation for the tangential stress is obtained from the simplified model, which is useful for the analysis of the recently discussed issues of orientational thermoelasticity and resonant excitation of liquid crystals.

Scopus,
Полный текст (доступен только в локальной сети),
WOS

Держатели документа:
Institute of Computational Modeling, SB RAS, Akademgorodok 50/44Krasnoyarsk, Russian Federation

Доп.точки доступа:
Sadovskii, V.M.; Садовский, Владимир Михайлович

/ V. M. Sadovskii, O. V. Sadovskaya // Wave Mot. - 2015. - Vol. 52. - P138-150, DOI 10.1016/j.wavemoti.2014.09.008 . - ISSN 0165-2125
Аннотация: Based on the equations of the dynamics of piecewise-homogeneous elastic material, parallel computational algorithms are developed to simulate the process of stress and strain wave propagation in amedium consisting of alarge number of blocks interacting through compliant interlayers. Computations of waves caused by localized impulse perturbations show that such amedium can be considered as isotropic only in the case of sufficiently thin interlayers. In the case of relatively thick interlayers, the anisotropy effects are observed which consist in the appearance of elongated wave fronts along the coordinate directions and characteristic oscillations of velocities and stresses because of the rotational motion of blocks. For the description of waves in ablocky medium with thin interlayers, the equations of the isotropic Cosserat continuum are applicable. As the thickness of interlayers increases, the orthotropic Cosserat continuum theory which takes into account the symmetry of elastic properties relative to the coordinate planes can be applied. By comparing the elastic wave velocities in the framework of piecewise-homogeneous model and continuum model, a simple method is obtained to estimate the mechanical parameters of the orthotropic Cosserat continuum modeling ablocky medium. In two-dimensional formulation of the orthotropic model the computational algorithm and the program system are worked out for the analysis of propagation of elastic waves. The comparison showed good qualitative agreement between the results of computations of waves caused by localized impulses, in the framework of the model of ablocky medium with compliant interlayers and the model of orthotropic Cosserat continuum.

Scopus,
WOS

Держатели документа:
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/44Krasnoyarsk, Russian Federation

Доп.точки доступа:
Sadovskii, V.M.; Sadovsky V.M.; Sadovskaya, O.V.; Садовская, Оксана Викторовна

[Текст] : статья / G. G. Krushenko // Вестник Сибирского государственного аэрокосмического университета им. академика М.Ф. Решетнева. - 2013. - Вып. 1(47). - С. 149-152
   Перевод заглавия: Повышение механических свойств лодочного винта из алюминиево-кремниевого сплава АК12 с помощью термоциклической обработки
Аннотация: The use of thermal-cycle processing improves the mechanical properties of boat screws of aluminium-silicon alloy АК12.
Термоциклическая обработка повышает механические свойства лодочного винта из алюминиево-кремниевого сплава АК12.

РИНЦ


Доп.точки доступа:
Крушенко, Генрих Гаврилович

[Текст] : статья / G. G. Krushenko // Вестник Сибирского государственного аэрокосмического университета им. академика М.Ф. Решетнева. - 2013. - Вып. 3(49). - С. 197-198
   Перевод заглавия: Влияние нагрева алюминиевой прутковой лигатуры на величину частиц алюминида титана
Аннотация: The metal products of machine-building profile manufactured of billets passed through the cycle of melting-crystallization and having microcrystalline structure, demonstrate higher physical-mechanical properties and exploitation characteristics in comparison with the metal products of macro crystalline structure. During the process of melting the refining structure additives are introduced into liquid metal using master alloys for the aim of the structure refinement. In particular, the similar master alloy is the rod aluminum-titanium master alloy containing titanium aluminide particles which are the crystallization centers. It is determined, that the rod heating in the process of its introducing into the liquid metal leads to enlargement of the titanium aluminide particles, that decreases the efficiency of structure refinement. Therefore, in every particular case, it is necessary to optimize the velocity of rod introducing into liquid metal.

РИНЦ


Доп.точки доступа:
Крушенко, Генрих Гаврилович

[Text] / A. Lukyanov [et al.] // 14th European Conference on the Mathematics of Oil Recovery 2014, ECMOR 2014. - 2014. - Ст. P27
Аннотация: Thermomechanical processes observing in deformable solids under intensive dynamic or quasi-static loadings consist of coupled mechanical, thermal and fracturing stages. The fracturing processes involve formation, motion and interaction of defects in crystals, phase transitions, breaking of bonds between atoms, accumulation of micro-structural damages (pores, cracks), etc. Irreversible deformations, zones of adiabatic shear micro-fractures are caused by these processes. A dynamic fracturing is a complicated multistage process, which includes appearance, evolution and confluence of micro-defects and formation of embryonic micro-cracks, pores that can grow and lead to the breaking-up of bodies with formation of free surfaces. This results in a need to use more advanced mathematical and numerical techniques. This talk presents modeling of irreversible deformation near the tip of a crack in a porous domain containing oil and gas during the hydraulic fracturing process. The governing equations for a porous domain containing oil and gas are based on constructing mathematical model of thermo-visco-elastoplastic media with micro-defects (micro-pores) filled with another phase (e.g., oil or/and gas). The micropores can change their size during the process of dynamical irreversible deformation. The existing pores can expand or collapse. The model was created by using the fundamental thermodynamic principles and, therefore, it is a thermodynamically consistent model. All the processes (i.e., irreversible deformation, fracturing, micro-damaging, heat transfer) within a porous domain are strongly coupled. Therefore, explicit normalized-corrected meshless method is used to solve the resulting governing PDEs. The flexibility of the proposed technique allows running efficiently using a great number of micro- and macrofractures. The results are presented, discussed and future studies are outlined.

Scopus


Доп.точки доступа:
Lukyanov, A.; Chugunov, N.; Sadovskii, V.M.; Садовский, Владимир Михайлович; Sadovskaya, O.V.; Садовская, Оксана Викторовна

/ I. I. Ryzhkov, S. P. Tsarev // Phys. Fluids. - 2015. - Vol. 27, Is. 7. - Ст. 072103, DOI 10.1063/1.4926891 . - ISSN 1070-6631
Аннотация: The linear stability of mechanical equilibrium in a two-layer system formed by different phases of the same binary mixture is investigated. The temperature difference is applied to the layers by heating and cooling the opposite rigid boundaries. In the state of mechanical equilibrium, the applied temperature gradient induces concentration gradients due to the Soret effect. The conservation of mass for the mixture components leads to the dependence of layer thicknesses on the applied temperature difference. In weightlessness, the main mechanisms of instability in the considered system are related to phase change and Marangoni effect. The calculations are performed for cyclohexane-methanol binary mixture, which has a liquid-liquid miscibility gap. The analytical solution of amplitude equations for monotonic perturbations is found and expression for the critical temperature difference is derived. It is shown that the phase change instability is long-wave and favoured when the difference between interfacial concentrations in the basic state decreases. When the Marangoni effect is taken into account, additional monotonic and oscillatory modes appear. They result from the interplay between thermocapillarity and phase change with latent heat release/absorption. The most unstable monotonic and oscillatory modes are identified depending on the heating regime and relative thickness of the layers. © 2015 AIP Publishing LLC.

Scopus,
WOS

Держатели документа:
Institute of Computational Modelling SB RAS, Akademgorodok, Krasnoyarsk, Russian Federation
Institute of Space and Information Technologies, Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation

Доп.точки доступа:
Tsarev, S.P.; Рыжков, Илья Игоревич

/ O. V. Sadovskaya, V. M. Sadovskii, M. A. Pokhabova // Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - 2015. - Vol. 9045: 6th International Conference on Finite Difference Methods, FDM 2014; Lozenetz; Bulgaria; 18 June 2014 through 23 June 2014; Code 156479. - P340-347, DOI 10.1007/978-3-319-20239-6_37 . -
Аннотация: Based on the equations of the dynamics of a piecewisehomogeneous elastic material, parallel computational algorithms are developed to simulate the process of stress and strain wave propagation in a medium consisting of a large number of blocks, interacting through compliant interlayers. For the description of waves in a block medium with thick interlayers the orthotropic couple-stress continuum theory, taking into account the symmetry of elastic properties relative to the coordinate planes, can be applied. By comparing the elastic wave velocities in the framework of piecewise-homogeneous model and continuum model, the simple method is obtained to estimate mechanical parameters of an orthotropic Cosserat continuum, modeling a block medium. In two-dimensional formulation of the orthotropic model, the computational algorithm and the program system are worked out for the analysis of propagation of elastic waves. The comparison showed good qualitative agreement between the results of computations of waves, caused by localized impulses, by the model of a block medium with compliant interlayers and the model of an orthotropic Cosserat continuum. © Springer International Publishing Switzerland 2015.

Scopus,
WOS

Держатели документа:
Institute of Computational Modeling SB RAS, Akademgorodok 50/44, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Sadovskii, V. M.; Садовский, Владимир Михайлович; Pokhabova, M. A.; Похабова М.А.; Садовская, Оксана Викторовна

/ N. Y. Shaparev // Dokl. Phys. - 2015. - Vol. 60, Is. 11. - P479-482, DOI 10.1134/S102833581511004X . - ISSN 1028-3358
Аннотация: Absorption of external radiation in self-similar expanding gaseous sphere is considered. The dependence of the optical thickness of the medium, contour shape, and width of the spectral line of absorption on the initial optical thickness and ratio of the boundary gas spread velocity to the thermal velocity of atoms is determined. © 2015, Pleiades Publishing, Ltd.

Scopus,
WOS

Держатели документа:
Institute of Computational Modelling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, str. 44, Krasnoyarsk, Russian Federation
National Research Tomsk State University, pr. Lenina 36, Tomsk, Russian Federation

Доп.точки доступа:
Шапарев, Николай Якимович
Свободных экз. нет

[Текст] : статья / Г. Г. Крушенко, В. П. Назаров, М. В. Резанова // Вестник Сибирского государственного аэрокосмического университета им. академика М.Ф. Решетнева. - 2015. - Т. 16, № 1. - С. 233-240 . - ISSN 1816-9724
   Перевод заглавия: THE USE OF THE NANOPOWDER TECHNOLOGY IN THE MANUFACTURE OF ALUMINUM ALLOYS PARTS VEHICLES

УДК

621.762

539.2

Аннотация: Известно, что с увеличением степени измельчения структурных составляющих сплавов повышаются механические свойства получаемых их них изделий. Отмечается, что достаточно большое количество деталей, комплектующих изделия машиностроения, производится с помощью литейного производства, в связи с присущими этому способу преимуществами по сравнению с другими технологиями изготовления деталей, наиболее значимое из которых - относительная простота технологии, тем не менее позволяющая получать сложные по конфигурации детали, которые практически невозможно изготовить другими способами, при одновременном обеспечении требуемых технической документацией характеристик. К таким деталям, в частности, относятся литые детали, которые входят в состав узлов, механизмов и машин транспортного машиностроения. При этом в этой отрасли, особенно в аэрокосмическом машиностроении, большое распространение получили алюминиевые литейные сплавы. При изготовлении литых деталей одним из основных способов повышения качества является модифицирование, суть которого заключается во введении в жидкий металл веществ, которые служат либо центрами кристаллизации, либо блокируют рост формирующихся кристаллических образований. К настоящему времени «измельчающие» возможности применяющихся средств модифицирования достигли своего предела. И в последние годы для этой цели находят применение более эффективные модификаторы в виде нанопорошков тугоплавких высокопрочных химических соединений (нитриды, карбиды, оксиды, бориды и др.), применение которых приводит к существенному повышению механических свойств литых изделий. Приводятся примеры применения наномодифицирования при изготовлении из алюминиевых сплавов литых деталей транспортных средств, а также использования нанопорошков при сварке, процессы которой практически идентичны с литейными.
It is known that with increasing fineness of the structural components of the alloys the mechanical properties of the obtained products are increased. It is noted that a sufficiently large parts, components engineering products, produced by the foundry, due to inherent in this method advantages compared with other technologies for the manufacturing of parts, the most significant of which is the relative simplicity of the technology, however, allows to obtain a complex configuration details, which are almost impossible to produce by other methods, while ensuring the required technical documentation characteristics. These details, in particular, are cast parts, which are parts of the components, mechanisms and machinery transport machinery. However, in this industry, especially in aerospace engineering, widespread aluminum die casting alloys has received. In the manufacture of cast parts one of the main ways of improving quality is a modification, the essence of which consists in the introduction into the molten metal substances, which serve either as crystallization centers, or block the growth of emerging crystalline formations. To date, the "chopping" the possibilities of applying the means of modification, has reached its limit. And in recent years for this purpose there are more effective modifiers in the form of nanopowders of refractory high-strength chemical compounds (nitrides, carbides, oxides, borides, and others), the application of which leads to a significant enhancement of the mechanical properties of molded products. The paper presents examples of the application of nanpowders in the manufacture of aluminum alloys castings vehicles, as well as their use during welding, a process which is almost identical with the casting.

РИНЦ

Держатели документа:
Институт вычислительного моделирования Сибирского отделения Российской академии наук
Сибирский государственный аэрокосмический университет имени академика М. Ф. Решетнева

Доп.точки доступа:
Назаров, В.П.; Nazarov V.P.; Резанова, М.В.; Rezanova M.V.; Krushenko G.G.