Browsing Материалы сборника по статьям by Issue Date
Now showing items 21-40 of 49
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Некоторые свойства интегральных вейвлет-преобразований
(БНТУ, 2007)Results of the investigation integral wavelet transforms are given. Acting and boundedness conditions for the integral wavelet transforms with compact support are obtained. Theorems of an inversion of the integral wavelet transform in the space of square-summable functions and the pointwise convergence of the inverse wavelet transform under Dini condition are stated.2020-06-01 -
Упругость нематических эластомеров
(БНТУ, 2007)The statistical theory of the Cauchy-Green type measure of nonlinear elastic deformation for nematic elastomer is developed. The spontaneous distortions of the nematic elastomers are considered as example of application the statistical theory.2020-06-01 -
Осесимметричные волновые пакеты в цилиндрической оболочке, лежащей на неоднородном вязкоупругом основании
(БНТУ, 2007)By using the asymptotic approach the solution of the Timoschenko-like equations governing the wave processes in the infinitely long elastic cylindrical shell lying on the non-homogeneous visco-elastic foundation has been constructed in the form of the wave packets traveling in the longitudinal direction. The solution represents the superposition of the bending and longitudinal waves.2020-06-01 -
Математическая модель функционирования адаптированного почвообрабатывающего агрегата
(БНТУ, 2007)А mathematical operation model has been found expedient to determine the effectiveness of a tillage unit operation under specified soil conditions as well as operation parameters and modes when this unit is combined with a particular tractor. The model-based PC software supplies the production and specific fuel consumption rates within the whole range of working speeds and soil ...2020-06-01 -
Информационное обеспечение раздела «Динамический анализ механизмов» в курсовом проекте по теории механизмов и машин
(БНТУ, 2007)The article describes the peculiarities of software and methodological complex "The Dynamic analysis of lever mechanisms", which is used in course designing at the rate "Theory of mechanisms and machines".2020-06-01 -
Определение внешнего критического давления оболочки котла вагона-цистерны
(БНТУ, 2007)Methods of computational mechanics solve a problem of definition of external critical pressure of an envelope of the boiler of the tankcar in view of change of its width.2020-06-01 -
Применение соотношений инвариантности к выводу новых интегральных уравнений для коэффициентов яркости плоскопараллельной дисперсной среды
(БНТУ, 2007)The new integral equations for brightness coefficients of pkineparellel dispersive medium of optical thickness Tq are obtained using invariance relations, involving usual Green’s functions or their generalization (for example, reduced Green’s functions) of radiation transfer equations. It is shown that the structure of these integral equations enables to obtain multiterm asimptotics ...2020-06-01 -
Расчёт механических свойств графена в модели валентно-силового поля
(БНТУ, 2007)h was developed computer model of single graphite atomic layer (graphene) crystal lattice on basis of valence-force-field approach. One performed computational experiments to determine mechanical cluiracteristics (linear elasticity modulus, crosscut compression coefficient, shear modulus) according to graphene particles dimensions. One realized comparison present results with ...2020-06-01 -
Критическое состояние многослойных мезоструктур типа сверхпроводник/нормальный металл
(БНТУ, 2007)The dependencies of the critical temperature on the thickness and on the number of layers for superconductor/rwrmal metal multilayers (S/N) are calculated based on multimode solution of microscopic theory equations in diffusive limit. The finite transparency of S/N interfaces took into account. The theoretical curves reproduce satisfactory the experimental data.2020-06-01 -
Температурное поле в стенке полого цилиндра
(БНТУ, 2007)With use of а metiwd affinal differences distribution is investigated water temperatures in a wall of the hollow cylinder. The algorithm is developed and the program on the IBM for definition of temperatures in any point of the cylinder is made at the set temperature on internal and external surfaces. Analytically also the specific thermal stream on an external surface is ...2020-06-01 -
Нагруженность кузова вагона при транспортировке сыпучих грузов
(БНТУ, 2007)Methods of computer simulation solve a problem of loading of a body of a bunker coach by a granular body. Different alternatives of exposition of behaviour of a material of granular medium surveyed.2020-06-01 -
Solving the unsteady heat transeer problem with periodic boundary condition by the boundary integral equations method
(БНТУ, 2007)In the paper, a solution of unsteady heat transfer problem with periodic boundary condition by means of boundary integral equations method was presented. Also was presented the results of numerical simulation of heat transfer in two dimensional area with oscillating temperature on the boundary.2020-06-01 -
Модели взаимодействия колеса с опорной поверхностью в продольной плоскости
(БНТУ, 2007)The paper discusses the widespread state-of-the-art statical and dynamic models of contact tyre/surface interaction for friction coefficient determination and simulation. Developing the existing procedures, the fuzzy and neuro-fuzzy models of friction coefficient recognition are proposed. The simulation results are given for models under discussion with a subsequent analysis.2020-06-01 -
Асимптотика собственных значений и собственных функций в кубически анизотропных средах
(БНТУ, 2007)The formulae for asymptotic expression of eigenvalues and eigenfunctions of first boundary value problem for cubic anisotropy bodies are obtained.2020-06-01 -
Действительная функция эри в пространственных задачах теории упругости
(БНТУ, 2007)The new real representations a component of stress tensor and deformation tensor are received through the three-dimensional harmonious and biharmonic functions forming stress function tensor. The found expressions allow to reduce the basic boundary problems of the spatial theory of elasticity to boundary problems for the biharmonic equation.2020-06-01 -
Построение модели формы периодонта на основе овалов четвертой степени
(БНТУ, 2007)Крушевский, А. Е. Построение модели формы периодонта на основе овалов четвертой степени / А. Е. Крушевский // Теоретическая и прикладная механика : международный научно-технический сборник / Белорусский национальный технический университет ; редкол.: А. В. Чигарев (пред. редкол.). – Минск : БНТУ, 2007. – Вып. 22. – С. 48-50.2020-06-01 -
Исследование распространения макротрещин в массивах горных пород
(БНТУ, 2007)In this paper the simpe optimization problem of laminate discontinued rocks is considered. The paper presents some possible formulations of optimal structural design problem based on probabilistic approaches due to possible incompleteness of information concerning crack size, location and orientation. Using these approaches optimal designs for laminate rocks approximated to the ...2020-06-01 -
Сенсорные молекулярные микроанализаторы идентификации веществ
(БНТУ, 2007)Results of research and modeling of adsorption-sensoric interactions of carbon rumomaterial with dangerous gases and explosive materials are submitted. The design of laboratory on a chip is described.2020-06-01 -
Расчёт эффективности ходовых систем многоприводных колесных машин
(БНТУ, 2007)The method for а quantitative estimation of efficiency of running systems of vehicles for curvilinear motion, taking into account the deviation of vectors of driving wheels tractive forces from the direction determined a driver by means of turning steering wheel, is offered. Results of application of the developed method for an estimation of efficiency of running systems AWD ...2020-06-01 -
Оптимизация размеров двутавровых балок из нелинейно-упругих материалов по двум параметрам
(БНТУ, 2007)This work contains development of solution of the problem of optimization of the weight of beams from Hook's materials and also solution of this problem for nonlinear materials.2020-06-01