Вісник № 47
Постійне посилання зібрання
Переглянути
Перегляд Вісник № 47 за Дата публікації
Зараз показуємо 1 - 20 з 29
Результатів на сторінці
Налаштування сортування
Документ Уточнение расчетной модели кольцевого лазерного гироскопа на основе экспериментальных данных(НТУ "ХПИ", 2005) Погорелов, Сергей Юрьевич; Счастливец, Кирилл ЮрьевичIn the proposed paper the analyze model accuracy of ring laser gyro has been researched. The temperature fields of real laser gyro have been determinate during the experiment. The analyze model of laser gyro corresponding experiment conditions was create. Difference between experimental and modeling results was analyzed. As result, the analyze model parameters of laser gyro has been adjust and adequacy between experimental and modeling heat processes became more fullДокумент Нелинейное деформирование бронированного шланга(НТУ "ХПИ", 2005) Мисюра, Е. Ю.This paper is concerned with the study of the stress-strain state of the armoured hose loaded by the internal pressure. The hose is a piecewise-homogenous isotropic thick-wall cylinder formed by two layers-rubber (inner) and metallic (external) ones. The statically axisymmetric problem of the plane deformed state in the physically and geometrically nonlinear formulation was solved by means of the finite element method on the base of the principle of possible displacements in the increments. The obtained numerical results made it possible to test the methodics and the program elaborated early and also to reveal the influence of the braid on the strength of the hoseДокумент Расчетные исследования каркасов панелей солнечных батарей космического аппарата(НТУ "ХПИ", 2005) Борщев, В. Н.; Антонова, В. А.; Листратенко, А. М.; Школьный, С. М.In article the results received at the decision of a problem of designing honeycomb plastics of skeletons of solar batteries SA MS-2-8 with unseeing carbon fiber-reinforced plastic of coverings are given. Problems about reception of temperature fields and about reception of the IDC for 3-D models are solvedДокумент Исключение влияния переменных режимов работы турбоагрегатов на процесс диагностирования комплексным методом(НТУ "ХПИ", 2005) Божко, А. Е.; Белых, В. И.; Зализняк, О. А.The necessity of the complex analysis of fluctuations of basic and persistent bearings and control of the moments of change of speed the circulation of a rotor turbo-machines is shown at vibrating diagnostics. The monitoring system of change of speed the circulation of a rotor for application it is indicated at temporary selection of a vibrating signalДокумент Термоустойчивость стержневых и пластинчатых элементов конструкций(НТУ "ХПИ", 2005) Конкин, Валерий Николаевич; Лавинский, Владимир ИвановичThe research results of maximum fortunes and steadiness loss of rectilinear bar form and flat form of round plate with calculation of temperature elements materials resiliency module dependence are representedДокумент Аппроксимации Паде и континуализация для одномерной цепочки масс(НТУ "ХПИ", 2005) Андрианов, И. В.; Иванков, А. О.; Матяш, М. В.Various continuous models (CM) for 1D discrete media are under consideration. As example the difference-differential equation, describing a system of connected oscillators, is chosen. String-type approximation shows excellent results for low part of frequency spectra, but for forced oscillations the corresponding mistake can be very big. So, the more appropriate CM should be found. We analyze three following models: the intermediate CM are obtained by replacing the difference operator (DO) for the derivative operator of the order 2k, k > 1; the quasi-CM are more accurate approximations of the DO via Pade approximates (PA); the two-point PA give the most precise results. Possibilities of the approach generalization and application are discusseДокумент Лазерная диагностика потоков. Часть 2. Параметры элементов оптических схем ЛДИС(НТУ "ХПИ", 2005) Никитин, А. М.In this article estimations of the optical parameters schemes LDA adapted to measuring of stream performances of restricted transparency fluids are reduced. Efficiency of algorithm at a phase of layout LDA optical schemes is showДокумент Напряженно-деформированное состояние составных осесимметричных конструкций, собираемых с натягом при использовании нагрева(НТУ "ХПИ", 2005) Андреев, Арнольд Георгиевич; Резниченко, Н. К.The created simulation model is intended for a research of assembly, ensures execution technological and strength of the requirements to a construction. The numerical results are indicatedДокумент Сжатие гибкой сферической оболочки двумя плоскостями(НТУ "ХПИ", 2005) Иглин, Сергей Петрович; Кулаченко, А. Е.; Сяров, А. М.The problem about tightening between two plains of an absolutely flexible spherical shell, pumped by gas, is decided. The large displacements, decrease of a shell thickness in an process of its tension and non-linear physical ratios are allowed. Primary radius of a pumped shell receives from a solution of a system of non-linear equations. The compression process is carried out step by step, with a linearization of equations on each step. The numerical example is presentedДокумент Узагальнений параметричний опис складних біомеханічних систем(НТУ "ХПІ", 2005) Ткачук, Микола Анатолійович; Радченко, В. О.; Веретельник, Юрій ВікторовичIt is proposed generalized parametrical approach for biomechanical system modelling. Structure of the specialized soft hardware complex for spatial modelling of locomotorium and spine endoprosthesing operations, prosthesed elements strength and rigidity as well as results of prostheses optimal behaviour scheme choice for best operation and prostheses scheme is presentedДокумент К задаче формирования расчетных схем элементов технологических систем листовой штамповки(НТУ "ХПИ", 2005) Гоголь, Н. А.; Назарова, О. В.; Ткачук, Анна Владимировна; Кохановская, Ольга ВладиславовнаThe general structure of specialized system for analysis of the stressed-deformed state of elements of stamps is presented. The stressed-deformed state of puncheons, moulds and puncheon-mould is investigatedДокумент Моделирование свойств материалов биомеханических систем: модели, подходы, численный эксперимент(НТУ "ХПИ", 2005) Веретельник, Юрий ВикторовичThis article is devoted to some mechanical research aspects of vertebra body stressedly-deformed state. The specified models are built vertebra bodies, which can be used for further researches. The quality and quantitative influencing analysis of the elasticity modulus and anisotropy is conducted on the vertebra behaviourДокумент Нелинейные изгибно-продольные колебания вращающихся стержней(НТУ "ХПИ", 2005) Ширяева, Наталья Владимировна; Аврамов, К. В.Nonlinear axial-bending vibrations of rotating beams are investigated here. Eiler-Bernuly hypothesis are used for modeling of a beam. Beam's vibrations are represented in the form of line of natural frequencies nonrotating beam. Ordinary differential equations of nonlinear vibrations are obtained hereДокумент Расчетно-экспериментальное исследование элементов гидрообъемных передач(НТУ "ХПИ", 2005) Мартыненко, Александр Викторович; Ткачук, Анна Владимировна; Зарубина, Алла Александровна; Васильев, Антон ЮрьевичParametrical approach to research of transport machines elements is offered. Theoretical and experimental methods of the HVT elements stress-strain state determination are proposed. The algorithm for software complex on its base is created. The computational and experimental results are presented, conclusions are madeДокумент Применение марковских моделей для расчета остаточного ресурса при усталостных отказах(НТУ "ХПИ", 2005) Жовдак, В. А.; Тарасова, Л. Ф.The approach of the construction element's residual resource prediction, based on the use of kinetic equations for description of the measure of damage and the mathematical tool for Markoffs process theory is proposed. As the result, the most informative reliability characteristics, such as no-failure operation probability and probability density of failures, are determined. This approach allows take proper account of the random loading, fatigue point decreaseДокумент Способ определения угла перекоса оси колесной пары железнодорожного транспортного средства относительно продольной оси рельсовой колеи(НТУ "ХПИ", 2005) Петров, А. С.; Бурка, М. Л.; Романенко, О. В.; Нестеренко, В. И.This article is about the method of the definition of a corner of a skew of an axis of the wheel pair of railway transport relatively to longitudinal axis of a rail trackДокумент Определение показателей надежности чувствительного элемента датчика давления - цилиндрического резонатора(НТУ "ХПИ", 2005) Повгородний, В. О.The article devoted to problems of definition parametrical reliability and probable operability. The work develops a new approach in mechanics and reliability based on evaluation of parametrical reliability (namely, reliability coefficients) and operability of structural elements, simple two dimensional structures (for example, boards with radio components) as well as complex three-dimensional lamellar-bar and cylindrical structuresДокумент До оптимального проектування коліс рухомого складу залізниць при технологічних та експлуатаційних навантаженнях(НТУ "ХПІ", 2005) Резниченко, М. К.; Щепкін, Олександр ВіталійовичThe systematic numerical research of railroad car wheel were made using technological heating by induction-heating devices which allowed the establishment of the laws of the stress-strain state of the wheel set elements, during its thermal assemblyДокумент Анализ чувствительности и оптимизация кварцевых резонаторов(НТУ "ХПИ", 2005) Симсон, Эдуард Альфредович; Назаренко, Сергей Александрович; Зюзин, А. Ю.Complicated finite-element models of quartz resonators with high geometric and physical self-descriptiveness sensitivity analysis and optimization methods are given in this article. The methods have guiding to orientate on high dimensions of state and design variables. The developed mathematical apparatus application domains are examinedДокумент К вопросу об изменении жесткости прямых эвольвентных зубьев модифицированных в виде круговых канавок на торцах колеса(НТУ "ХПИ", 2005) Кириченко, А. Ф.; Бережной, Виталий АлександровичThe increasing way of spur gears capacity to work are studied. Gear tooth calculation of volumetric stress strain state of modification spur gears by method of finite element is performed. The stress and rigidity calculation results of modification spur gears with by circle sharpening on spur gears have been calculated