Repository BNTU - Browsing by Type: Выпуск 22 "Article"

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Equistrong Tower Design

Cherepanov, G. P. (БНТУ, 2007)

The September 11, 2001 events attracted the attention of civil engineers of the world to the problem of safety of towers and skyscrapers. According to recent studies, the WTC collapse was caused by man-made explosions on a critical floor located much lower than the floors hit by terrorist planes which supports the wide-spread rumor in the U.S. that MASAD agents used the aftermath ...

2020-06-01
Solving the oscillating pipe flow problem by the boundary integral equations method

Sorko, S. A.; Karpovich, S. E. (БНТУ, 2007)

In the work, a solution to a problem of oscillatory flow of viscous incompressible liquid in a rectilinear pipe of circular section, completely filled with the liquid was presented. The way of solving flow generated by pressure pulsation and the pipe oscillation to the flow direction was also-discussed. The behaviour of the liquid for the selected spectrum of its frequency and ...

2020-06-01
Solving the unsteady heat transeer problem with periodic boundary condition by the boundary integral equations method

Sorko, S. A.; Karpovich, S. E. (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
Using of finite element method for solving problems of the resistance of materials

Pronkevich, S. A.; Senk, I. (БНТУ, 2007)

In this article we consider the using of finite element method for solving problems of the resistance of materials and compare results solved different methods: analytic solution, hand-calculation solution by finite element method and solution in ANSYS.

2020-06-01
Алгоритмы анимации фрикционных автоколебаний приводов подачи станков

Кудин, В. В.; Астахов, Э. И.; Кудин, М. В. (БНТУ, 2007)

The algorithm of animation of frictional auto-oscillations presented at a translational motion of a support of cutting machines, parameters of auto-oscillations are defined, the alternative of laboratory operation on examination of these oscillations is offered.

2020-06-01
Анализ устойчивости подпружиненного физического маятника методами А.М. Ляпунова

Гурвич, Ю. А.; Пащенко, А. В.; Сафронов, К. И. (БНТУ, 2007)

In а difference of usual stability definition methods of a spring physical pendulum, in this article stability of a spring physical pendulum defined using methods created by A.M. Lapunov. In the result, connection between different parameters of spring and pendulum was formalized, and defined a point of stable pendulum position.

2020-06-01
Асимптотика собственных значений и собственных функций в кубически анизотропных средах

Мартыненко, И. М. (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
Безопасность работы автомобильного подъёмника-вышки

Любнауер, В. А. (БНТУ, 2007)

The paper presents the analysis of the mechanics the systems, which is modeling the motor-car with the basket jack - the telescopic lift. For the assumed mathenmtical model, its equations were introduced, solved by means of the Mathematica 5.2 software. The results are shown in the form of adequate graphs.

2020-06-01
Гидропрессовая сборка соединений с гарантированным натягом

Чернин, И. Л.; Сенько, Н. Г.; Чернин, Р. И. (БНТУ, 2007)

The main limitation of assembly of the connections formed by mechanic pressing-in are noted, the new engineering solution on hydropress disassembly connections is described, the basic theoretical relations of process of a hydrothrust in a part jointing with guaranteed interference are adduced.

2020-06-01
Действительная функция эри в пространственных задачах теории упругости

Нифагин, В. А. (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
Динамический анализ движения рычажного механизма стенда для испытания гусениц

Гарах, В. А.; Астахов, Э. И. (БНТУ, 2007)

The dynamic analysis of motion of lever mechanism of drive of stand for the test of gusenits of tractors is resulted. Computation is conducted by the Mertsalova N.I. method for the set mode of operations. On results analysis of motion the recommendations are resulted on reduction of the dynamic workload on links and bearing of stand.

2020-06-01
Дифференциальное уравнение движения заготовки во время пневмоцентробежной обработки

Сухоцкий, А. А. (БНТУ, 2007)

Various aspects of application of the differential equation for the description of character of movement of work part in the device for pneumocentrifugal processing are described.

2020-06-01
Изгиб тонкой пластины при импульсном воздействии потока заряженных частиц

Куликов, И. С. (БНТУ, 2007)

Куликов, И. С. Изгиб тонкой пластины при импульсном воздействии потока заряженных частиц / И. С. Куликов // Теоретическая и прикладная механика : международный научно-технический сборник / Белорусский национальный технический университет ; редкол.: А. В. Чигарев (пред. редкол.). – Минск : БНТУ, 2007. – Вып. 22. – С. 18-23.

2020-06-01
Интерактивная визуализация перемещений на плоскости двух планарных позиционеров

Карпович, С. Е.; Голдын, Л.; Поляковский, В. В.; Дайняк, И. В. (БНТУ, 2007)

The collision problem in the technological equipment with two and more planar positioners on the same stator is described. A geometric interpretation of problem is given, and the algorithm for analysis and excepting of collisions is proposed. The multimedia page for the modelling of two planar positioners' motions on the same stator is presented.

2020-06-01
Информационное обеспечение раздела «Динамический анализ механизмов» в курсовом проекте по теории механизмов и машин

Анципорович, П. П.; Акулич, В. К.; Дубовская, Е. М. (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
Исследование распространения макротрещин в массивах горных пород

Журавков, М. А.; Чумак, Н. Г. (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
Корреляционный анализ весовых значений векторов направлений

Бокуть, Л. В.; Кулешов, А. Я. (БНТУ, 2007)

The correlation analysis of weight values of direction vectors and their order numbers of normalized vector model for objects under investigation is proposed. The experimental results of construction of the regression line are represented, as well as ones for calculation of theoretical-correlation ratio, similarity measure and classification of objects under investigation for a ...

2020-06-01
Критическое состояние многослойных мезоструктур типа сверхпроводник/нормальный металл

Кушнир, В. Н. (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
Математическая модель функционирования адаптированного почвообрабатывающего агрегата

Каминьски, Я. Р.; Мишин, П. А. (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
Методы оптимизации технологических циклов и тепловых схем ТЭЦ

Трибунов, Г. А.; Куликов, И. С. (БНТУ, 2007)

Трибунов, Г. А. Методы оптимизации технологических циклов и тепловых схем ТЭЦ / Г. А. Трибунов, И. С. Куликов // Теоретическая и прикладная механика : международный научно-технический сборник / Белорусский национальный технический университет ; редкол.: А. В. Чигарев (пред. редкол.). – Минск : БНТУ, 2007. – Вып. 22. – С. 200-216.

2020-06-01