Выпуск 23: Recent submissions
Now showing items 21-40 of 48
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К вопросу об определении износа во вращательных кинематических парах рычажных механизмов
(БНТУ, 2008)It is necessary to construct hodographs of reactions for estimation of distribution of wearing in elements of turning kinematic pairs. However if both parts of pairs are mobile, the real picture of expected wearing can be received, having presented reaction in mobile systems of the coordinates connected with corresponding parts. The features of definition of reactions in mobile ...2019-11-15 -
Равнительный численный анализ механического поведения нанотрубки в случае применения разных механических моделей
(БНТУ, 2008)It was developed computer model of single-walled carbon nanotube on basis of valence-force-field approach. One performed computational experiments to determine mechanical characteristics (linear elasticity modulus, crosscut compression coefficient, shear modulus) according nanotube dimensions. One realized comparison present results with results obtained within Urey-Bradley model. ...2019-11-15 -
Комплексное моделирование электромеханических систем на примере офсетной печатной машины
(БНТУ, 2008)This paper is devoted to the building of complex modeling environment on the basis of SolidWorks, Visual- Nastran and Matlab/Simulink packages. Possibility of creation of such an environment is demonstrated on the example of model offset printing machine with the printing cylinder angular velocity stabilization system. Connection and exchange information between the mechanical ...2019-11-15 -
Динамика объемной и поверхностной усадки ягод при потере структурной влаги
(БНТУ, 2008)Разработана методика определения текущего объема и площади поверхности объектов сушки по фотографическому изображению. Проведен компьютерный анализ полученных фотоизображений и оценка скорости изменения объема и поверхности объекта сушки при потере структурной влаги. Экспериментально определены текущий вес и изменение линейных размеров материала, как функцш времени и влажности, ...2019-11-15 -
Устойчивость тонких гофрированных оболочек, лежащих на упругом основании, под действием неоднородного гидростатического давления
(БНТУ, 2008)The problem of stability of the thin-walled corrugated shell laying on the elastic foundation under action of non- uniform pressure is considered. The influence of the elastic foundation is taken into account as the additional pressure within the framework of Winkler's model. The rigid clamped conditions are considered at the edges of the shell. The obtained resolving equation ...2019-11-15 -
Компьютерный анализ напряженно-деформированного состояния ортодонтического аппарата
(БНТУ, 2008)In the present paper results of modeling and calculation strain - deformed conditions of the orthodontic device with four crowns, executed in a finite - element package Ansys and Ansys Workbench are submitted.2019-11-15 -
Влияние многосуставных мышц на целенаправленное движение человека
(БНТУ, 2008)The equations ofpurposeful movement of the person who is carrying out exercises on sports shells, possessing elastic properties in the working part, are deduced without taking into account functionalities of muscular system of the person. Actually, the realization of the physical dependences which described by models of movement and have been not reflected in the equations, depends ...2019-11-15 -
Численное моделирование механического поведения наноструктуры графена, содержащей разрез
(БНТУ, 2008)The mathematical model of graphen nanostructure containing a cut is constructed and realized in package Mathematica. Dependences of forces arising in valence bonds at loading and Young modulus from length of defect are investigated. It is shown, that at edge of a cut forces grow in some times. Young modulus decreases almost in two.2019-11-15 -
Statistical-mechanical description of orientational order tensor fluctuation by means of Fokker-Planck equation
(БНТУ, 2008)This article is devoted to derivation the evolution equation for the distribution function offluctuations of tensor order parameter on bases ofsolving of the Liouville equation by Zubarev method.2019-11-15 -
Биомеханический анализ целенаправленного движения спортсмена
(БНТУ, 2008)The biomechanical analysis of purposeful movement of the person in conditions of an elastic support is presented at performance of such sports exercises as exercises in gymnastics on female bars and on a crossbeam. For purposeful movement the equations which members are generally broken into six groups are deduced. In such kind of the equation of movement show connection of these ...2019-11-15 -
Компьютерное моделирование прямой и обратной задачи кинематики пространственной системы перемещений с шестью степенями свободы в среде MATLAB/Simulink
(БНТУ, 2008)The six degree offreedom spatial movement system has been examined. Algorithms and simulation programs for direct and inverse kinematic problems solving of spatial mechanism are presented. As a result of computer simulation the movement system's actuator spatial motion capabilities are obtained and investigated.2019-11-15 -
Кинематический и динамический анализ колесно-шагающей машины на основе компьютерных моделей в пакетах ADAMS и VisualNastran
(БНТУ, 2008)Paper deal with computer simulation of the wheel-stepping machine (WSM) using VisualNastran and ADAMS programs facilities. WSM motion process, trajectories, turnability parametres were calculated for different transference modes and situations.2019-11-15 -
Биомеханика многоопорного протеза
(БНТУ, 2008)Крушевский, А. Е. Биомеханика многоопорного протеза / А. Е. Крушевский // Теоретическая и прикладная механика : межведомственный сборник научно-методических статей / Белорусский национальный технический университет ; редкол.: А. В. Чигарев (пред. редкол.). – Минск : БНТУ, 2008. – Вып. 23. – С. 125-129.2019-11-15 -
Построение механико-математической модели кровеносных сосудов (артерий) человека как многослойной анизотропной оболочки
(БНТУ, 2008)There is helical motion of biological environment in the cardiovascular system and others transporting systems. The member of the Academy N. Dobrecov reported about that discovery in his paper in 2003. The basis of such motion is transporting canals walls interaction with the medium due to torsion wave that is generated by helical and muscular elements. The walls of arteries have ...2019-11-15 -
Uwzglednienie oporu powietrza w analizie ruchu rzucanej monety
(БНТУ, 2008)Numerical analysis of three dimensional coin tossing is presented. Coin model includes air resistance. It is assumed that the air resistance force is proportional to the velocity. Comparison of results with and without the air resistance shows that the air friction may be nonnegligible.2019-11-15 -
Расчет скоростей и ускорений элементов составных механизмов с применением пакета Mechanical Systems системы Mathematica
(БНТУ, 2008)In the present paper the algorithm of calculation of velocities and accelerations of components of mechanical system in Mathematica package Mechanical systems is submitted. The example of calculation of velocities and accelerations of elements of brake draft of a back suspension bracket of the automobile is resulted.2019-11-15 -
Моделирование маневра «переставка» в ADAMS
(БНТУ, 2008)Description of а model of а vehicle MAZ-4570 assigned for dynamic analysis is observed in the present article. Results of dynamic simulation of resetting maneuver and results offinite-element modelling offront and rear car suspension are also given here.2019-11-15 -
Определение коэффициентов интенсивности напряжений путем моделирования трещины в ANSYS
(БНТУ, 2008)3-D finite-element model of rigid body with crack was created in ANSYS program. Stress intensity factors were calculated for three loading situations. Comparison of the solutions of the classical crushing mechanics problems with computer simulation results instill confidence in the validated modeling. ANSYS mode was used for exploration of the stressedly-deformed mode in the ...2019-11-15 -
Генерация кинематических моделей механических систем и исследование их движения с применением функций пакета Mechanical Systems
(БНТУ, 2008)In the present paper development cycles of models of mechanical systems in package Mechanical Systems are submitted. Definitions of the functions forming mathematical system of the analytical equations on the basis of which calculation of kinematics characteristics of model is carried out are resulted. The example of calculation and modeling the three-dimensional crank-slider ...2019-11-15 -
Применение пк “ANSYS” к решению задач строительной аэродинамики
(БНТУ, 2008)Buildings and structures are affected externally by the blowing of wind in several aspects. Aerodynamic effects are the most important for multy-stored buildings. The aerodynamic effect is concerned with the configuration of the air flow in the building domain. This configuration determines the distributions of pressure and velocity on the building surfaces. In paper are presented ...2019-11-15
