Вісник № 38
Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/2926
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Документ Активное гашение нестационарных колебаний прямоугольной пластины(НТУ "ХПИ", 2007) Янютин, Е. Г.; Воропай, Алексей ВалериевичThe procedure of active damping of the nonstationary vibration for rectangular plate is presented. The damping is executed by the system of four nonstationary concentrated forces obtained as a result of solving an inverse problem of Timoshenko's plate dynamic theory. The problem is reduced to the system of the first-kind Volterra integral equations solved numerically with means of Tikhonov's regularization method.Документ Анализ динамических реакций при падении контейнера-упаковки с радиоактивными отходами(НТУ "ХПИ", 2007) Бирюков, О. В.; Андреев, Юрий Михайлович; Лавинский, Денис Владимирович; Соболь, Владимир НиколаевичThe method and results of the analysis of dynamic reactions, kinematics parameters and stress-strain state for the falling nuclear waste package are presented. The analysis of impact interaction by using the SAE of multibody system dynamics is done. The stress-state analysis of the package elements by finite element method (FEM) is given.Документ Анализ чувствительности характеристик прочности и жесткости структурно связанных систем(НТУ "ХПИ", 2007) Лавинский, Владимир Иванович; Назаренко, Сергей Александрович; Анацкий, Юрий ПетровичThe methods to analyze the sensitivity of complicated finite-element models of structurally connected systems are proposed in this paper. Computational stages are investigated. The applications of developed mathematical apparatus are examined.Документ Вимушені коливання циклосиметричного лопаткового апарату з випадковим технологічним розладом(НТУ "ХПІ", 2007) Жовдак, В. О.; Ларін, Олексій Олександрович; Головко, О. М.Investigation of the harmonic vibration of the lump-mass discrete cyclic model of bladed disk of the first stage of the stem turbine with the random mistuning is carried out by means of Monte-Carlo method. Various realizations of the mistuning and corresponding to them amplitude-frequency characteristics are investigated. The expectations and variances for the frequency-response curve are built.Документ Дослідження напружено-деформованого стану трійникових з'єднань трубопроводів гідросистем(НТУ "ХПІ", 2007) Бабич, О. А.; Трубаєв, Олександр Іванович; Чалий, І. В.The stressedly-deformed state of t-junction of connection of pipes of a hydraulic drive press under an operation of internal pressure is examined. Two models of constructive realization of connection were considered.Документ Изменение теплопроводности контакта элементов лазерного гироскопа под действием прижимного усилия(НТУ "ХПИ", 2007) Погорелов, Сергей Юрьевич; Счастливец, Кирилл Юрьевич; Марусенко, Светлана ИвановнаThe measurement accuracy of ring laser gyros depends on temperature field parameters. In the proposed paper the influence of contact thermal conduction between the construction cover and laser gyroscope resonator including deformations depending on mechanical construction spring pretension was analyzed.Документ Исследование вынужденных колебаний осцилятора в около резонансной области для различных характеристик демпфирования(НТУ "ХПИ", 2007) Хромов, Е. В.Forced bending vibrations of steel bar under the action of the internal forces are studied. Quantitative analysis of influence of different damping function variants on amplitude-frequency characteristics is shown.Документ К вопросу о диагностировании состояния металлоконструкции углеперегружателя(НТУ "ХПИ", 2007) Гусев, Ю. Б.The method of diagnosing of the state of metalware of coal-loader is described in the paper. The research data are presented on the example of crane-loader made by FEB, FTA, Germany.Документ К вопросу о тестовых задачах для кругового цилиндра(НТУ "ХПИ", 2007) Ткачук, Николай НиколаевичJn the paper the construction of a series of master solutions for circular cylinder is discussed. These solutions were applied to verify a finite element model with two cases of boundary loading.Документ Моделироавние и численный анализ сварных узлов циркуляционного насоса с технологическими дефектами(НТУ "ХПИ", 2007) Кедровская, Ольга Валентиновна; Мартыненко, Геннадий Юрьевич; Пирогов, А. Д.In article the scheme of the goods accounting at the retail trade firm is considered, necessity of the computerized of the goods accounting as the basic parameter of work of trade enterprises is retail commodity circulation shows.Документ Моделирование и численный анализ напряженно-деформированного состояния фрагмента поясничного отдела позвоночника(НТУ "ХПИ", 2007) Гречихина, Н. В.; Сукиасов, Владимир ГеоргиевичThe comparative analysis results of stress state of spine in the normal state and with fixing are presented. Calculations are executed by finite element method in three-dimensional statement. Criterion of the comparison is the stress state level of vertebra and fix by physiological loading.Документ Напряженно-деформированное состояние зубчатых передач с позиций термоконтактного деформирования в упруго-пластической области и в условиях ползучести(НТу "ХПИ", 2007) Приймаков, А. Г.; Устиненко, Александр Витальевич; Приймаков, Григорий АлександровичContact task in a resiliently-plastic area at presence of chafing in the contact area is considered. The method of determination of thermal-contact strains and stress of some stratum, being under the surface stratum of tooth in the conditions of creep is offered.Документ Обзор решений задач ползучести и разрушения елочных замковых соединений лопаток ГТД(НТУ "ХПИ", 2007) Анищенко, Галина Оттовна; Морачковский, Олег КонстантиновичThe survey of solutions of problems of creep and fracture of the fur-tree lock of connection of shovels of aviation gas turbine engines is presented. The researches of different authors containing numerical solutions of plane and space problems for static and dynamic creep-damage are considered.Документ Общие подходы к проектированию специализированного программного комплекса решения задач оптимизации(НТУ "ХПИ", 2007) Овчаренко, В. В.The work is devoted to basic approaches for projecting and design of a specialized optimization program product. The basic requirements for developing system were stated. The design principles were developed. Structural elements was distinguished. The common scheme of interaction between structural elements in frames of computing cluster was elaborated. The sphere of problems for further product development was described.Документ Определение жесткостных характеристик радиальных магнитных подшипников на двух кольцевых постоянных магнитах(НТУ "ХПИ", 2007) Мартыненко, Геннадий ЮрьевичIn the paper the procedure of calculation of power descriptions and definition of quasielastic coefficients for the radial magnetic bearings on two permanent circular magnets is offered. This procedure is based on the finite element analysis. Comparison of design and experimental data is xecuted. Comparative description of two types of the magnetic bearings is carried out.Документ Определение точности метода фотоупругости(НТУ "ХПИ", 2007) Тесленко, А. А.New method of accuracy definition for the method of photoelasticity is considered in the paper. Essence of a method consists in the modelling way of accuracy determination. Accuracy is determined in comparison of initial (modelling) stresses and stresses determined in the simulated way of measurement. The stresses determined in real experiment are used as initial (modelling) stresses. The correctness of this method is investigated.Документ Оптимальное проектирование механизма наклона плавильной печи: модели для анализа напряженно-деформированного состояния(НТУ "ХПИ", 2007) Полищук, Тарас ВикторовичIn this paper models for research of stressedly-deformed state of model of smelting furnace are described. The generation of geometry and finite-element net is conducted with integrated parameterization of dimensions, efforts and parameters of finite-element net.Документ Особенности твердотельного геометрического моделирования машиностроительных объектов(НТУ "ХПИ", 2007) Красников, Сергей Васильевич; Руденко, Сергей СергеевичThe problems, related with programming of CAD systems for geometrical modeling of mechanical construction, are considered. The cast of common standards related with modern CAD systems a described. Variant of necessary parameters in future design of CAD systems for mechanic a done.Документ Переходные и стационарные режимы в системе с ограниченным возбуждением(НТУ "ХПИ", 2007) Перепелкин, Николай Викторович; Михлин, Юрий ВладимировичTransient in a non-ideal system with limited excitation, where an interaction of engine and linear elastic subsystem takes place, is considered. The transient in described by the multiple scales method. Possibility of transfer to stationary regimes, including a resonance regime, is considered. Numerical simulation confirms an efficiency of the obtained analytical solutions.Документ Переходные процессы в системах с двумя степенями свободы, содержащих существенно нелинейный гаситель(НТУ "ХПИ", 2007) Михлин, Юрий Владимирович; Руднева, Гаянэ Валериковна; Бунакова, Т. В.Transient in a system containing a linear oscillator, linearly coupled to an essentially nonlinear attachment with a comparatively small mass, is considered. A damping is taken into account. The multiple scales method is used to construct a rocess of transient in the system under consideration. A transfer of energy from the initially perturbed linear subsystem to the nonlinear absorber can be observed. A similar construction is made to describe the transient in a system which contains a linear oscillator and a vibro-impact attachment with a comparatively small mass. A transient in such system under the external periodical excitation was considered too. Numerical simulation confirms an efficiency of the analytical construction in both systems.